Interceptors.idl revision 923:479805760256
1/*
2 * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
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24 */
25
26/*
27 * Differences from original:
28 *
29 * - do not include orb.idl
30 * - include IOP.idl, Messaging.idl and CORBAX.idl
31 * - renamed component parameter names to tagged_component (so that they 
32 *   do not conflict with the CORBA 3.0 "component" keyword).
33 * - javadocs added (synchronized with orbos/00-08-06)
34 * 
35 * NOTE: After compilation of this IDL file, all Helper and Holder classes
36 * that are not needed are removed.
37 */
38#include "IOP.idl"
39#include "Messaging.idl"
40#include "CORBAX.idl"
41#include "corba.idl"
42
43#pragma prefix "omg.org"
44
45#ifndef CORBA3
46#define local
47#endif
48
49module Dynamic {
50
51  /**
52   * <code>NVList</code> PIDL represented by <code>ParameterList</code> IDL.  
53   * This exists in order to keep the Portable Interceptor IDL from becoming 
54   * PIDL.
55   */
56  struct Parameter {
57    any argument;
58    CORBA::ParameterMode mode;
59  };
60
61  /**
62   * <code>NVList</code> PIDL represented by <code>ParameterList</code> IDL.  
63   * This exists in order to keep the Portable Interceptor IDL from becoming 
64   * PIDL.
65   */
66  typedef sequence<Parameter> ParameterList;
67
68  /**
69   * <code>ContextList</code> PIDL represented by <code>ContextList</code> 
70   * IDL.  This exists in order to keep the Portable Interceptor IDL from 
71   * becoming PIDL.
72   */
73  typedef CORBA::StringSeq ContextList;
74
75  /**
76   * <code>ExceptionList</code> PIDL represented by <code>ExceptionList</code> 
77   * IDL.  This exists in order to keep the Portable Interceptor IDL from 
78   * becoming PIDL.
79   */
80  typedef sequence<CORBA::TypeCode> ExceptionList;
81
82  /**
83   * <code>Context</code> PIDL represented by <code>RequestContext</code> 
84   * IDL.  This exists in order to keep the Portable Interceptor IDL from o
85   * becoming PIDL.
86   * <p>
87   * <code>Context</code> objects are encoded as <code>String[]</code>.  The 
88   * <code>Strings</code> occur in pairs.  The first <code>String</code> in 
89   * each pair is the context property name and the second <code>String</code>
90   * in each pair is the associated value.
91   */
92  typedef CORBA::StringSeq RequestContext;
93};
94
95module PortableInterceptor {
96  /**
97   * All Portable Interceptors implement Interceptor.
98   */
99  local interface Interceptor {
100    /**
101     * Returns the name of the interceptor.
102     * <p>
103     * Each Interceptor may have a name that may be used administratively 
104     * to order the lists of Interceptors. Only one Interceptor of a given 
105     * name can be registered with the ORB for each Interceptor type. An 
106     * Interceptor may be anonymous, i.e., have an empty string as the name 
107     * attribute. Any number of anonymous Interceptors may be registered with 
108     * the ORB.
109     *
110     * @return the name of the interceptor.
111     */
112    readonly attribute string name;
113
114    // Added in ptc/00-08-06
115    /**
116     * Provides an opportunity to destroy this interceptor.
117     * The destroy method is called during <code>ORB.destroy</code>. When an 
118     * application calls <code>ORB.destroy</code>, the ORB:
119     * <ol>
120     *   <li>waits for all requests in progress to complete</li>
121     *   <li>calls the <code>Interceptor.destroy</code> operation for each 
122     *       interceptor</li>
123     *   <li>completes destruction of the ORB</li>
124     * </ol>
125     * Method invocations from within <code>Interceptor.destroy</code> on 
126     * object references for objects implemented on the ORB being destroyed 
127     * result in undefined behavior. However, method invocations on objects 
128     * implemented on an ORB other than the one being destroyed are 
129     * permitted. (This means that the ORB being destroyed is still capable 
130     * of acting as a client, but not as a server.) 
131     */
132    void destroy();
133  };
134
135
136  /**
137   * The <code>ForwardRequest</code> exception is the means by which an 
138   * Interceptor can indicate to the ORB that a retry of the request should 
139   * occur with the new object given in the exception. This behavior of 
140   * causing a retry only occurs if the ORB receives a ForwardRequest from 
141   * an interceptor. If <code>ForwardRequest</code> is thrown anywhere else 
142   * it is passed through the ORB as is normal for a user exception. 
143   * <p>
144   * If an Interceptor throws a <code>ForwardRequest</code> exception in 
145   * response to a call of an interceptor, no other Interceptors are called 
146   * for that interception point. The remaining Interceptors in the Flow Stack 
147   * shall have their appropriate ending interception point called: 
148   * <code>receive_other</code> on the client, or <code>send_other</code> on 
149   * the server. The <code>reply_status</code> in the 
150   * <code>receive_other</code> or <code>send_other</code> would be 
151   * <code>LOCATION_FORWARD</code>.
152   */
153  exception ForwardRequest {
154    /** 
155     * The new object to forward the request to.
156     */
157    Object forward;
158//   Change in ptc/00-08-06
159//    boolean permanent;
160  };
161
162  /** Reply status, represented as an int */
163  typedef short ReplyStatus;
164
165  // Valid reply_status values:
166
167  /**
168   * Indicates a successful Reply Status. One possible value for 
169   * <code>RequestInfo.reply_status</code>.
170   * @see RequestInfo#reply_status
171   * @see SYSTEM_EXCEPTION
172   * @see USER_EXCEPTION
173   * @see LOCATION_FORWARD
174   * @see TRANSPORT_RETRY
175   */
176  const ReplyStatus SUCCESSFUL = 0;
177
178  /**
179   * Indicates a SystemException reply status. One possible value for 
180   * <code>RequestInfo.reply_status</code>.
181   * @see RequestInfo#reply_status
182   * @see SUCCESSFUL
183   * @see USER_EXCEPTION
184   * @see LOCATION_FORWARD
185   * @see TRANSPORT_RETRY
186   */
187  const ReplyStatus SYSTEM_EXCEPTION = 1;
188
189  /**
190   * Indicates a UserException reply status. One possible value for 
191   * <code>RequestInfo.reply_status</code>.
192   * @see RequestInfo#reply_status
193   * @see SUCCESSFUL
194   * @see SYSTEM_EXCEPTION
195   * @see LOCATION_FORWARD
196   * @see TRANSPORT_RETRY
197   */
198  const ReplyStatus USER_EXCEPTION = 2;
199
200  /**
201   * Indicates a LocationForward reply status. One possible value for 
202   * <code>RequestInfo.reply_status</code>.
203   * @see RequestInfo#reply_status
204   * @see SUCCESSFUL
205   * @see SYSTEM_EXCEPTION
206   * @see USER_EXCEPTION
207   * @see TRANSPORT_RETRY
208   */
209  const ReplyStatus LOCATION_FORWARD = 3;
210
211// Changes in ptc/00-08-06
212//  const ReplyStatus LOCATION_FORWARD_PERMANENT = 4;
213
214  /**
215   * Indicates a Transport Retry reply status. One possible value for 
216   * <code>RequestInfo.reply_status</code>.
217   * @see RequestInfo#reply_status
218   * @see SUCCESSFUL
219   * @see SYSTEM_EXCEPTION
220   * @see USER_EXCEPTION
221   * @see LOCATION_FORWARD
222   */
223  const ReplyStatus TRANSPORT_RETRY = 4;
224
225  /**
226   * XXX
227   */
228  const ReplyStatus UNKNOWN = 5;
229
230  /** Slot id, represented as an int */
231  typedef unsigned long SlotId;
232
233  /**
234   * This exception is thrown when <code>get_slot</code> or 
235   * <code>set_slot</code> is called on a slot that has not been allocated.
236   */
237  exception InvalidSlot {};
238
239  /**
240   * Portable Interceptors Current (also known as <code>PICurrent</code>) 
241   * is merely a slot table, the slots of which are used by each service to 
242   * transfer their context data between their context and the request's or 
243   * reply's service context. Each service which wishes to use PICurrent 
244   * reserves a slot or slots at initialization time and uses those slots 
245   * during the processing of requests and replies.
246   * <p>
247   * Before an invocation is made, PICurrent is obtained via a call to 
248   * <code>ORB.resolve_initial_references( "PICurrent" )</code>. From within 
249   * the interception points, the data on PICurrent that has moved from the 
250   * thread scope to the request scope is available via the 
251   * <code>get_slot</code> operation on the <code>RequestInfo</code> object. 
252   * A PICurrent can still be obtained via 
253   * <code>resolve_initial_references</code>, but that is the Interceptor's 
254   * thread scope PICurrent.
255   */
256  local interface Current : CORBA::Current {
257
258    /**
259     * Retrieves the slot data the application set in PICurrent via 
260     * <code>get_slot</code>.  The data is in the form of an Any. 
261     * <p>
262     * If the given slot has not been set, an Any containing a type code 
263     * with a <code>TCKind</code> value of <code>tk_null</code> and no value 
264     * is returned. 
265     *
266     * @param id The <code>SlotId</code> of the slot from which the data will 
267     *     be returned. 
268     * @return The data, in the form of an Any, of the given slot identifier.
269     * @exception InvalidSlot thrown if get_slot is called on a slot that 
270     *     has not been allocated. 
271     * @exception BAD_INV_ORDER thrown if <code>get_slot</code> is called 
272     *     from within an ORB initializer 
273     */
274    any get_slot (in SlotId id) raises (InvalidSlot);
275
276    /**
277     * Sets data in a slot. The data is in the form of an Any. If data 
278     * already exists in that slot, it is overridden. 
279     *
280     * @param id The <code>SlotId</code> of the slot to which the data will 
281     *     be set. 
282     * @param data The data, in the form of an Any, which will be set 
283     *     to the identified slot. 
284     * @exception InvalidSlot thrown if <code>set_slot</code> is called on 
285     *     a slot that has not been allocated.
286     * @exception BAD_INV_ORDER thrown if <code>set_slot</code> is called 
287     *     from within an ORB initializer. 
288     */
289    void set_slot (in SlotId id, in any data) raises (InvalidSlot);
290  };
291
292  /**
293   * Request Information, accessible to Interceptors.
294   * <p>
295   * Each interception point is given an object through which the 
296   * Interceptor can access request information. Client-side and server-side 
297   * interception points are concerned with different information, so there 
298   * are two information objects: <code>ClientRequestInfo</code> is passed 
299   * to the client-side interception points and <code>ServerRequestInfo</code>
300   * is passed to the server-side interception points. But there is 
301   * information that is common to both, so they both inherit from a common 
302   * interface: <code>RequestInfo</code>.
303   *
304   * @see ClientRequestInfo
305   * @see ServerRequestInfo
306   */
307  local interface RequestInfo {
308    /**
309     * Returns an id that uniquely identifies an active request/reply 
310     * sequence. Once a request/reply sequence is concluded this ID may be 
311     * reused. Note that this id is not the same as the GIOP 
312     * <code>request_id</code>. If GIOP is the transport mechanism used, 
313     * then these IDs may very well be the same, but this is not guaranteed 
314     * nor required.
315     */
316    readonly attribute unsigned long request_id;
317
318    /**
319     * Returns the name of the operation being invoked.
320     */
321    readonly attribute string operation;
322
323    /**
324     * Returns an array of <code>Parameter</code> objects, containing the 
325     * arguments on the operation being invoked.  If there are no arguments, 
326     * this attribute will be a zero length array. 
327     * <p>
328     * Not all environments provide access to the arguments. With the Java 
329     * portable bindings, for example, the arguments are not available. 
330     * In these environments, when this attribute is accessed, 
331     * <code>NO_RESOURCES</code> will be thrown with a standard minor code 
332     * of 1.
333     * <p>
334     * <i>Note: Arguments are available for DSI/DII calls.</i>
335     *
336     * @exception NO_RESOURCES thrown if arguments are not available.
337     * @see <a href="package-summary.html#unimpl">
338     *     <code>PortableInterceptor</code> package comments for 
339     *     limitations / unimplemented features</a>
340     */
341    readonly attribute Dynamic::ParameterList arguments;
342
343    /**
344     * Returns an array of <code>TypeCode</code> objects describing the 
345     * <code>TypeCode</code>s of the user exceptions that this operation 
346     * invocation may throw. If there are no user exceptions, this 
347     * will return a zero length array. 
348     * <p>
349     * Not all environments provide access to the exception list. With 
350     * the Java portable bindings, for example, the exception list is 
351     * not available. In these environments, when this attribute is 
352     * accessed, <code>NO_RESOURCES</code> will be thrown with a 
353     * standard minor code of 1.
354     * <p>
355     * <i>Note: Exceptions are available for DSI/DII calls.</i>
356     *
357     * @exception NO_RESOURCES thrown if exceptions are not available.
358     * @see <a href="package-summary.html#unimpl">
359     *     <code>PortableInterceptor</code> package comments for 
360     *     limitations / unimplemented features</a>
361     */
362    readonly attribute Dynamic::ExceptionList exceptions;
363
364    /**
365     * Returns an array of <code>String</code> objects describing the 
366     * contexts that may be passed on this operation invocation.  If there 
367     * are no contexts, this will return a zero length array. 
368     * <p>
369     * Not all environments provide access to the context list. With the 
370     * Java portable bindings, for example, the context list is not 
371     * available. In these environments, when this attribute is accessed, 
372     * <code>NO_RESOURCES</code> will be thrown with a standard minor code 
373     * of 1.
374     * <p>
375     * <i>Note: Contexts are available for DSI/DII calls.</i>
376     *
377     * @exception NO_RESOURCES thrown if contexts are not available.
378     * @see <a href="package-summary.html#unimpl">
379     *     <code>PortableInterceptor</code> package comments for 
380     *     limitations / unimplemented features</a>
381     */
382    readonly attribute Dynamic::ContextList contexts;
383
384    /**
385     * Returns an array of <code>String</code> objects containing the 
386     * contexts being sent on the request.
387     * <p>
388     * Not all environments provide access to the context. With the Java 
389     * portable bindings, for example, the context is not available. In 
390     * these environments, when this attribute is accessed, NO_RESOURCES will 
391     * be thrown with standard minor code of 1.
392     * <p>
393     * <i>Note: <code>operation_context</code> is available for 
394     * DSI/DII calls.</i>
395     *
396     * @exception NO_RESOURCES thrown if operation context is not available.
397     * @see <a href="package-summary.html#unimpl">
398     *     <code>PortableInterceptor</code> package comments for 
399     *     limitations / unimplemented features</a>
400     */
401    readonly attribute Dynamic::RequestContext operation_context;
402
403    /**
404     * Returns an any containing the result of the operation invocation. 
405     * If the operation return type is void, this attribute will be an any 
406     * containing a type code with a <code>TCKind</code> value of 
407     * <code>tk_void</code> and no value. 
408     * <p>
409     * Not all environments provide access to the result. With the Java 
410     * portable bindings, for example, the result is not available. In 
411     * these environments, when this attribute is accessed, 
412     * <code>NO_RESOURCES</code> will be thrown with a standard minor code of 
413     * 1.
414     * <p>
415     * <i>Note: Result is available for DSI/DII calls.</i>
416     *
417     * @exception NO_RESOURCES thrown if result is not available.
418     * @see <a href="package-summary.html#unimpl">
419     *     <code>PortableInterceptor</code> package comments for 
420     *     limitations / unimplemented features</a>
421     */
422    readonly attribute any result;
423
424    /**
425     * Indicates whether a response is expected. 
426     * <p>
427     * On the client, a reply is not returned when 
428     * <code>response_expected</code> is false, so <code>receive_reply</code> 
429     * cannot be called. <code>receive_other</code> is called unless an 
430     * exception occurs, in which case <code>receive_exception</code> is 
431     * called. 
432     * <p>
433     * On the client, within <code>send_poll</code>, this attribute is true.
434     */
435    readonly attribute boolean response_expected;
436
437    /**
438     * Defines how far the request shall progress before control is returned
439     * to the client.  This is defined in the Messaging specification, and 
440     * is pertinent only when <code>response_expected</code> is false. If 
441     * <code>response_expected</code> is true, the value of 
442     * <code>sync_scope</code> is undefined. This attribute may have one of 
443     * the following values: 
444     * <ul>
445     *   <li><code>Messaging.SYNC_NONE</code></li>
446     *   <li><code>Messaging.SYNC_WITH_TRANSPORT</code></li>
447     *   <li><code>Messaging.SYNC_WITH_SERVER</code></li>
448     *   <li><code>Messaging.SYNC_WITH_TARGET</code></li>
449     * </ul>
450     * On the server, for all scopes, a reply will be created from the 
451     * return of the target operation call, but the reply will not return 
452     * to the client. Although it does not return to the client, it does 
453     * occur, so the normal server-side interception points are 
454     * followed (i.e., <code>receive_request_service_contexts</code>, 
455     * <code>receive_request</code>, <code>send_reply</code> or 
456     * <code>send_exception</code>). 
457     * <p>
458     * For <code>SYNC_WITH_SERVER</code> and <code>SYNC_WITH_TARGET</code>, 
459     * the server does send an empty reply back to the client before the 
460     * target is invoked. This reply is not intercepted by server-side 
461     * Interceptors.
462     * 
463     * @see <a href="package-summary.html#unimpl">
464     *     <code>PortableInterceptor</code> package comments for 
465     *     limitations / unimplemented features</a>
466     */
467    readonly attribute Messaging::SyncScope sync_scope;
468
469    /**
470     * Describes the state of the result of the operation invocation. The
471     * return value can be one of the following: 
472     * <ul>
473     *   <li><code>PortableInterceptor.SUCCESSFUL</code></li>
474     *   <li><code>PortableInterceptor.SYSTEM_EXCEPTION</code></li>
475     *   <li><code>PortableInterceptor.USER_EXCEPTION</code></li>
476     *   <li><code>PortableInterceptor.LOCATION_FORWARD</code></li>
477     *   <li><code>PortableInterceptor.TRANSPORT_RETRY</code></li>
478     * </ul>
479     * On the client:
480     * <ul>
481     *   <li>Within the <code>receive_reply</code> interception point, this 
482     *       will only return <code>SUCCESSFUL</code>.</li>
483     *   <li>Within the <code>receive_exception</code> interception point, 
484     *       this will be either <code>SYSTEM_EXCEPTION</code> or 
485     *       <code>USER_EXCEPTION</code>.</li>
486     *   <li>Within the <code>receive_other</code> interception point, this 
487     *       will be any of: <code>SUCCESSFUL</code>, 
488     *       <code>LOCATION_FORWARD</code>, or <code>TRANSPORT_RETRY</code>. 
489     *       <code>SUCCESSFUL</code> means an asynchronous request returned 
490     *       successfully. <code>LOCATION_FORWARD</code> means that a reply 
491     *       came back with <code>LOCATION_FORWARD</code> as its status. 
492     *       <code>TRANSPORT_RETRY</code> means that the transport 
493     *       mechanism indicated a retry - a GIOP reply with a status of 
494     *       <code>NEEDS_ADDRESSING_MODE</code>, for instance. </li>
495     * </ul>
496     * On the server: 
497     * <ul>
498     *   <li>Within the <code>send_reply</code> interception point, this 
499     *       will only be <code>SUCCESSFUL</code>.</li>
500     *   <li>Within the <code>send_exception</code> interception point, 
501     *       this will be either <code>SYSTEM_EXCEPTION</code> or 
502     *       <code>USER_EXCEPTION</code>.</li>
503     *   <li>Within the <code>send_other</code> interception point, this 
504     *       attribute will be any of: <code>SUCCESSFUL</code>, or 
505     *       <code>LOCATION_FORWARD</code>. <code>SUCCESSFUL</code> means 
506     *       an asynchronous request returned successfully. 
507     *       <code>LOCATION_FORWARD</code> means that a reply came back 
508     *       with <code>LOCATION_FORWARD</code> as its status.</li>
509     * </ul>
510     * 
511     * @see SUCCESSFUL
512     * @see SYSTEM_EXCEPTION
513     * @see USER_EXCEPTION
514     * @see LOCATION_FORWARD
515     * @see TRANSPORT_RETRY
516     */
517    readonly attribute ReplyStatus reply_status;
518
519    /** 
520     * Contains the object to which the request will be forwarded, if the 
521     * <code>reply_status</code> attribute is <code>LOCATION_FORWARD</code>.
522     * It is indeterminate whether a forwarded request will actually occur.
523     */
524    readonly attribute Object forward_reference;
525
526    /**
527     * Returns the data from the given slot of the 
528     * <code>PortableInterceptor.Current</code> that is in the scope of 
529     * the request. 
530     * <p>
531     * If the given slot has not been set, then an any containing a 
532     * type code with a <code>TCKind</code> value of <code>tk_null</code> is 
533     * returned. 
534     *
535     * @param id The <code>SlotId</code> of the slot which is to be 
536     *     returned. 
537     * @return The slot data, in the form of an any, obtained with the 
538     *     given identifier.
539     * @exception InvalidSlot thrown if the ID does not define an 
540     *    allocated slot.
541     * @see Current
542     */
543    any get_slot (in SlotId id) raises (InvalidSlot);
544
545    /**
546     * Returns a copy of the service context with the given ID that 
547     * is associated with the request. 
548     *
549     * @param id The <code>IOP.ServiceId</code> of the service context 
550     *     which is to be returned. 
551     * @return The <code>IOP.ServiceContext</code> obtained with the 
552     *     given identifier.
553     * @exception BAD_PARAM thrown with a standard minor code of 26, if the 
554     *     request's service context does not contain an entry for that ID.
555     */
556    IOP::ServiceContext get_request_service_context 
557      (in IOP::ServiceId id);
558
559    /**
560     * Returns a copy of the service context with the given ID that 
561     * is associated with the reply. 
562     * 
563     * @param id The <code>IOP.ServiceId</code> of the service context 
564     *     which is to be returned. 
565     * @return The <code>IOP.ServiceContext</code> obtained with the given 
566     *     identifier. 
567     * @exception BAD_PARAM thrown with a standard minor code of 26 if the 
568     *     request's service context does not contain an entry for that ID.
569     */
570    IOP::ServiceContext get_reply_service_context 
571      (in IOP::ServiceId id);
572  };
573
574  /**
575   * Request Information, accessible to client-side request interceptors.
576   * <p>
577   * Some attributes and operations on <code>ClientRequestInfo</code> are 
578   * not valid at all interception points.  The following table shows the 
579   * validity of each attribute or operation.  If it is not valid, attempting 
580   * to access it will result in a <code>BAD_INV_ORDER</code> being thrown
581   * with a standard minor code of 14.
582   *
583   * <table class="plain">
584   * <caption style="display:none">Shows the validity of each attribute or operation</caption>
585   *  <thead>
586   *    <tr>
587   *      <td></td>
588   *      <th id="send_req">send_request</th>
589   *      <th id="send_poll">send_poll</th>
590   *      <th id="rec_reply">receive_reply</th>
591   *      <th id="rec_ex">receive_exception</th>
592   *      <th id="rec_oth">receive_other</th>
593   *    </tr>
594   *  </thead>
595   *  <tbody style="text-align:left">
596   *
597   *  <tr>
598   *     <th id="ri" colspan=6><i>Inherited from RequestInfo:</i></th>
599   *  </tr>
600   * 
601   *  <tr><th id="req_id">request_id</th>
602   *  <td headers="ri req_id send_req">yes</td> 
603   *  <td headers="ri req_id send_poll">yes</td> 
604   *  <td headers="ri req_id rec_reply">yes</td> 
605   *  <td headers="ri req_id rec_ex">yes</td> 
606   *  <td headers="ri req_id rec_oth">yes</td></tr>
607   * 
608   *  <tr><th id="op">operation</th>
609   *  <td headers="ri op send_req">yes</td> 
610   *  <td headers="ri op send_poll">yes</td> 
611   *  <td headers="ri op rec_reply">yes</td> 
612   *  <td headers="ri op rec_ex">yes</td> 
613   *  <td headers="ri op rec_oth">yes</td></tr>
614   *
615   *  <tr><th id="arg">arguments</th>
616   *  <td headers="ri arg send_req">yes<sub>1</sub></td>
617   *  <td headers="ri arg send_poll">no </td> 
618   *  <td headers="ri arg rec_reply">yes</td> 
619   *  <td headers="ri arg rec_ex">no </td> 
620   *  <td headers="ri arg rec_oth">no </td></tr>
621   *
622   *  <tr><th id="exc">exceptions</th>
623   *  <td headers="ri exc send_req">yes</td> 
624   *  <td headers="ri exc send_poll">no </td> 
625   *  <td headers="ri exc rec_reply">yes</td> 
626   *  <td headers="ri exc rec_ex">yes</td> 
627   *  <td headers="ri exc rec_oth">yes</td></tr>
628   *
629   *  <tr><th id="con">contexts</th>
630   *  <td headers="ri con send_req">yes</td> 
631   *  <td headers="ri con send_poll">no </td> 
632   *  <td headers="ri con rec_reply">yes</td> 
633   *  <td headers="ri con rec_ex">yes</td> 
634   *  <td headers="ri con rec_oth">yes</td></tr>
635   *
636   *  <tr><th id="op_con">operation_context</th>
637   *  <td headers="ri op_con send_req">yes</td> 
638   *  <td headers="ri op_con send_poll">no </td> 
639   *  <td headers="ri op_con rec_reply">yes</td> 
640   *  <td headers="ri op_con rec_ex">yes</td> 
641   *  <td headers="ri op_con rec_oth">yes</td></tr>
642   *
643   *  <tr><th id="result">result</th>
644   *  <td headers="ri result send_req">no </td> 
645   *  <td headers="ri result send_poll">no </td> 
646   *  <td headers="ri result rec_reply">yes</td> 
647   *  <td headers="ri result rec_ex">no </td> 
648   *  <td headers="ri result rec_oth">no </td></tr>
649   *
650   *  <tr><th id="res_exp">response_expected</th>
651   *  <td headers="ri res_exp send_req">yes</td> 
652   *  <td headers="ri res_exp send_poll">yes</td> 
653   *  <td headers="ri res_exp rec_reply">yes</td> 
654   *  <td headers="ri res_exp rec_ex">yes</td> 
655   *  <td headers="ri res_exp rec_oth">yes</td></tr>
656   *
657   *  <tr><th id="sync_sco">sync_scope</th>
658   *  <td headers="ri sync_sco send_req">yes</td> 
659   *  <td headers="ri sync_sco send_poll">no </td> 
660   *  <td headers="ri sync_sco rec_reply">yes</td> 
661   *  <td headers="ri sync_sco rec_ex">yes</td> 
662   *  <td headers="ri sync_sco rec_oth">yes</td></tr>
663   *
664   *  <tr><th id="rep_stat">reply_status</th>
665   *  <td headers="ri rep_stat send_req">no </td> 
666   *  <td headers="ri rep_stat send_poll">no </td> 
667   *  <td headers="ri rep_stat rec_reply">yes</td> 
668   *  <td headers="ri rep_stat rec_ex">yes</td> 
669   *  <td headers="ri rep_stat rec_oth">yes</td></tr>
670   *
671   *  <tr><th id="for_ref">forward_reference</th>
672   *  <td headers="ri for_ref send_req">no </td>
673   *  <td headers="ri for_ref send_poll">no </td> 
674   *  <td headers="ri for_ref rec_reply">no </td> 
675   *  <td headers="ri for_ref rec_ex">no </td> 
676   *  <td headers="ri for_ref rec_oth">yes<sub>2</sub></td></tr>
677   *
678   *  <tr><th id="get_slot">get_slot</th>
679   *  <td headers="ri get_slot send_req">yes</td> 
680   *  <td headers="ri get_slot send_poll">yes</td> 
681   *  <td headers="ri get_slot rec_reply">yes</td> 
682   *  <td headers="ri get_slot rec_ex">yes</td> 
683   *  <td headers="ri get_slot rec_oth">yes</td></tr>
684   *
685   *  <tr><th id="grsc">get_request_service_context</th>
686   *  <td headers="ri grsc send_req">yes</td> 
687   *  <td headers="ri grsc send_poll">no </td> 
688   *  <td headers="ri grsc rec_reply">yes</td> 
689   *  <td headers="ri grsc rec_ex">yes</td> 
690   *  <td headers="ri grsc rec_oth">yes</td></tr>
691   *
692   *  <tr><th id="gpsc">get_reply_service_context</th>
693   *  <td headers="ri gpsc send_req">no </td> 
694   *  <td headers="ri gpsc send_poll">no </td> 
695   *  <td headers="ri gpsc rec_reply">yes</td> 
696   *  <td headers="ri gpsc rec_ex">yes</td> 
697   *  <td headers="ri gpsc rec_oth">yes</td></tr>
698   *
699   *  <tr>
700   *    <th id="cri" colspan=6><i>ClientRequestInfo-specific:</i></th>
701   *  </tr>
702   *
703   *  <tr><th id="target">target</th>
704   *  <td headers="cri target send_req">yes</td> 
705   *  <td headers="cri target send_poll">yes</td> 
706   *  <td headers="cri target rec_reply">yes</td> 
707   *  <td headers="cri target rec_ex">yes</td> 
708   *  <td headers="cri target rec_oth">yes</td></tr>
709   *
710   *  <tr><th id="eftarget">effective_target</th>
711   *  <td headers="cri eftarget send_req">yes</td> 
712   *  <td headers="cri eftarget send_poll">yes</td> 
713   *  <td headers="cri eftarget rec_reply">yes</td> 
714   *  <td headers="cri eftarget rec_ex">yes</td> 
715   *  <td headers="cri eftarget rec_oth">yes</td></tr>
716   *
717   *  <tr><th id="efprof">effective_profile</th>
718   *  <td headers="cri efprof send_req">yes</td> 
719   *  <td headers="cri efprof send_poll">yes</td> 
720   *  <td headers="cri efprof rec_reply">yes</td> 
721   *  <td headers="cri efprof rec_ex">yes</td> 
722   *  <td headers="cri efprof rec_oth">yes</td></tr>
723   *
724   *  <tr><th id="rxp">received_exception</th>
725   *  <td headers="cri rxp send_req">no </td> 
726   *  <td headers="cri rxp send_poll">no </td> 
727   *  <td headers="cri rxp rec_reply">no </td> 
728   *  <td headers="cri rxp rec_ex">yes</td> 
729   *  <td headers="cri rxp rec_oth">no </td></tr>
730   *
731   *  <tr><th id="rei">received_exception_id</th>
732   *  <td headers="cri rei send_req">no </td> 
733   *  <td headers="cri rei send_poll">no </td> 
734   *  <td headers="cri rei rec_reply">no </td> 
735   *  <td headers="cri rei rec_ex">yes</td> 
736   *  <td headers="cri rei rec_oth">no </td></tr>
737   *
738   *  <tr><th id="gec">get_effective_component</th>
739   *  <td headers="cri gec send_req">yes</td> 
740   *  <td headers="cri gec send_poll">no </td> 
741   *  <td headers="cri gec rec_reply">yes</td> 
742   *  <td headers="cri gec rec_ex">yes</td> 
743   *  <td headers="cri gec rec_oth">yes</td></tr>
744   *
745   *  <tr><th id="gecs">get_effective_components</th>
746   *  <td headers="cri gecs send_req">yes</td> 
747   *  <td headers="cri gecs send_poll">no </td> 
748   *  <td headers="cri gecs rec_reply">yes</td> 
749   *  <td headers="cri gecs rec_ex">yes</td> 
750   *  <td headers="cri gecs rec_oth">yes</td></tr>
751   *
752   *  <tr><th id="grpcy">get_request_policy</th>
753   *  <td headers="cri grpcy send_req">yes</td>
754   *  <td headers="cri grpcy send_poll">no </td> 
755   *  <td headers="cri grpcy rec_reply">yes</td> 
756   *  <td headers="cri grpcy rec_ex">yes</td> 
757   *  <td headers="cri grpcy rec_oth">yes</td></tr>
758   *
759   *  <tr><th id="arsc">add_request_service_context</th>
760   *  <td headers="cri arsc send_req">yes</td> 
761   *  <td headers="cri arsc send_poll">no </td> 
762   *  <td headers="cri arsc rec_reply">no </td> 
763   *  <td headers="cri arsc rec_ex">no </td> 
764   *  <td headers="cri arsc rec_oth">no </td></tr>
765   *
766   *   </tbody>
767   * </table>
768   *
769   * <ol>
770   *   <li>When <code>ClientRequestInfo</code> is passed to 
771   *       <code>send_request</code>, there is an entry in the list for every 
772   *       argument, whether in, inout, or out.  But only the in and inout 
773   *       arguments will be available.</li>
774   *   <li>If the <code>reply_status</code> atribute is not 
775   *       <code>LOCATION_FORWARD</code>, accessing this attribute will 
776   *       throw <code>BAD_INV_ORDER</code> with a standard minor code of 
777   *       14.</li>
778   * </ol>
779   *
780   * @see ClientRequestInterceptor
781   */
782  local interface ClientRequestInfo : RequestInfo {
783
784    /**
785     * Returns the object which the client called to perform the 
786     * operation. 
787     *
788     * @see #effective_target
789     */
790    readonly attribute Object target;
791
792    /**
793     * Returns the actual object on which the operation will be invoked. 
794     * If the <code>reply_status</code> is <code>LOCATION_FORWARD</code>, 
795     * then on subsequent requests, <code>effective_target</code> will 
796     * contain the forwarded IOR while target will remain unchanged. 
797     *
798     * @see #target
799     */
800    readonly attribute Object effective_target;
801
802    /**
803     * Returns the profile that will be used to send the request. If a 
804     * location forward has occurred for this operation's object and 
805     * that object's profile changed accordingly, then this profile will 
806     * be that located profile.
807     */
808    readonly attribute IOP::TaggedProfile effective_profile;
809
810    /** 
811     * Returns an any which contains the exception to be returned to 
812     * the client. 
813     * <p>
814     * If the exception is a user exception which cannot be inserted 
815     * into an any (e.g., it is unknown or the bindings don t provide 
816     * the <code>TypeCode</code>), then this attribute will be an any 
817     * containing the system exception <code>UNKNOWN</code> with a 
818     * standard minor code of 1. However, the repository id of 
819     * the exception is available in the <code>received_exception_id</code> 
820     * attribute.
821     * 
822     * @see #received_exception_id
823     */
824    readonly attribute any received_exception;
825
826    /**
827     * Returns the repository id of the exception to be returned to 
828     * the client.
829     *
830     * @see #received_exception
831     * @see <a href="package-summary.html#unimpl">
832     *     <code>PortableInterceptor</code> package comments for 
833     *     limitations / unimplemented features</a>
834     */
835    readonly attribute CORBA::RepositoryId received_exception_id;
836
837    /** 
838     * Returns the <code>IOP.TaggedComponent</code> with the given ID from 
839     * the profile selected for this request. 
840     * <p>
841     * If there is more than one component for a given component ID, it 
842     * is undefined which component this operation returns. If there is 
843     * more than one component for a given component ID, 
844     * <code>get_effective_components</code> should be called instead. 
845     * 
846     * @param id The component id of the component which 
847     *     is to be returned. 
848     * @return The <code>IOP.TaggedComponent</code> obtained with the 
849     *     given identifier.
850     * @exception BAD_PARAM thrown, with a standard minor code of 28, if
851     *     no component exists for the given component ID.
852     * @see #get_effective_components
853     */
854    IOP::TaggedComponent get_effective_component 
855      (in IOP::ComponentId id);
856
857    /**
858     * Returns an array of all tagged components with the given ID from the 
859     * profile selected for this request. 
860     * 
861     * @param id The component id of the components which are to be returned. 
862     * @return An array of <code>TaggedComponent</code> objects, each of 
863     *     which contains the given identifier.
864     * @exception BAD_PARAM thrown, with a standard minor code of 28, if
865     *     no component exists for the given component ID.
866     * @see #get_effective_component
867     */
868    IOP::TaggedComponentSeq get_effective_components 
869      (in IOP::ComponentId id);
870
871    /**
872     * Returns the given policy in effect for this operation. 
873     * 
874     * @exception INV_POLICY thrown, with a standard minor code of 1, if the 
875     *     policy type is not valid either because the specified type is 
876     *     not supported by this ORB or because a policy object of that type 
877     *     is not associated with this Object
878     * @param type The policy type which specifies the policy to be 
879     *     returned. 
880     * @return The <code>CORBA.Policy</code> obtained with the given type.
881     * @see <a href="package-summary.html#unimpl">
882     *     <code>PortableInterceptor</code> package comments for 
883     *     limitations / unimplemented features</a>
884     */
885    CORBA::Policy get_request_policy 
886      (in CORBA::PolicyType type);
887
888    /** 
889     * Allows Interceptors to add service contexts to the request. 
890     * <p>
891     * There is no declaration of the order of the service contexts. 
892     * They may or may not appear in the order that they are added. 
893     *
894     * @param service_context The <code>IOP.ServiceContext</code> to be 
895     *     added to the request. 
896     * @param replace Indicates the behavior of this operation when a 
897     *     service context already exists with the given ID. If false, 
898     *     then <code>BAD_INV_ORDER</code> with a standard minor code of 15 
899     *     is thrown. If true, then the existing service context is 
900     *     replaced by the new one.
901     */
902    void add_request_service_context (
903      in IOP::ServiceContext service_context,
904      in boolean replace);
905  };
906
907  // Should be type string
908  typedef string ServerId ;
909
910  // This should actually be the CORBA::ORBid type once that is available
911  typedef string ORBId ;
912
913  /** The name of an object adapter. This is unique only within
914   * the scope of the ORB that created the object adapter.
915   */
916  typedef org::omg::CORBA::StringSeq AdapterName ;
917
918  /** Type of an object id. This provides the identity of a particular
919   * object that was created by an object adapter.
920   */
921  typedef org::omg::CORBA::OctetSeq ObjectId ;
922
923  /**
924   * Request Information, accessible to server-side request interceptors.
925   * <p>
926   * Some attributes and operations on <code>ServerRequestInfo</code> are not 
927   * valid at all interception points.  The following table shows the validity 
928   * of each attribute or operation.  If it is not valid, attempting to access 
929   * it will result in a <code>BAD_INV_ORDER</code> being thrown with a 
930   * standard minor code of 14.
931   *
932   *
933   * <table class="plain">
934   *   <caption style="display:none">Shows the validity of each attribute or operation</caption>
935   *   <thead>
936   *     <tr>
937   *       <td></td>
938   *       <th id="rec_req_ser_con" valign="bottom">receive_request_<br>service_contexts</th>
939   *       <th id="rec_req"  valign="bottom">receive_request</th>
940   *       <th id="send_rep" valign="bottom">send_reply</th>
941   *       <th id="send_exc" valign="bottom">send_exception</th>
942   *       <th id="send_oth" valign="bottom">send_other</th>
943   *     </tr>
944   *   </thead>
945   *  <tbody style="text-align:left">
946   *
947   *
948   * <tr>
949   *   <th id="ri" colspan=6><i>Inherited from RequestInfo:</i></th>
950   * </tr>
951   *
952   * <tr><th id="req_id">request_id</th>
953   * <td headers="ri req_id rec_req_ser_con">yes</td> 
954   * <td headers="ri req_id rec_req">yes</td> 
955   * <td headers="ri req_id send_rep">yes</td> 
956   * <td headers="ri req_id send_exc">yes</td> 
957   * <td headers="ri req_id send_oth">yes</td></tr>
958   *
959   * <tr><th id="op">operation</th>
960   * <td headers="ri op rec_req_ser_con">yes</td> 
961   * <td headers="ri op rec_req">yes</td> 
962   * <td headers="ri op send_rep">yes</td> 
963   * <td headers="ri op send_exc">yes</td> 
964   * <td headers="ri op send_oth">yes</td></tr>
965   *
966   * <tr><th id="args">arguments</th>
967   * <td headers="ri args rec_req_ser_con">no </td> 
968   * <td headers="ri args rec_req">yes<sub>1</sub></td>
969   * <td headers="ri args send_rep">yes</td> 
970   * <td headers="ri args send_exc">no<sub>2</sub></td>
971   * <td headers="ri args send_oth">no<sub>2</sub>
972   * </td></tr>
973   *
974   * <tr><th id="exps">exceptions</th>
975   * <td headers="ri exps rec_req_ser_con">no </td> 
976   * <td headers="ri exps rec_req">yes</td> 
977   * <td headers="ri exps send_rep">yes</td> 
978   * <td headers="ri exps send_exc">yes</td> 
979   * <td headers="ri exps send_oth">yes</td></tr>
980   *
981   * <tr><th id="contexts">contexts</th>
982   * <td headers="ri contexts rec_req_ser_con">no </td> 
983   * <td headers="ri contexts rec_req">yes</td> 
984   * <td headers="ri contexts send_rep">yes</td> 
985   * <td headers="ri contexts send_exc">yes</td> 
986   * <td headers="ri contexts send_oth">yes</td></tr>
987   *
988   * <tr><th id="op_con">operation_context</th>
989   * <td headers="ri op_con rec_req_ser_con">no </td> 
990   * <td headers="ri op_con rec_req">yes</td> 
991   * <td headers="ri op_con send_rep">yes</td> 
992   * <td headers="ri op_con send_exc">no </td> 
993   * <td headers="ri op_con send_oth">no </td>
994   * </tr>
995   * 
996   * <tr><th id="result">result</th>
997   * <td headers="ri result rec_req_ser_con">no </td> 
998   * <td headers="ri result rec_req">no </td> 
999   * <td headers="ri result send_rep">yes</td> 
1000   * <td headers="ri result send_exc">no </td> 
1001   * <td headers="ri result send_oth">no </td>
1002   * </tr>
1003   *
1004   * <tr><th id="res_ex">response_expected</th>
1005   * <td headers="ri res_ex rec_req_ser_con">yes</td> 
1006   * <td headers="ri res_ex rec_req">yes</td> 
1007   * <td headers="ri res_ex send_rep">yes</td> 
1008   * <td headers="ri res_ex send_exc">yes</td> 
1009   * <td headers="ri res_ex send_oth">yes</td></tr>
1010   *
1011   * <tr><th id="syn_scp">sync_scope</th>
1012   * <td headers="ri syn_scp rec_req_ser_con">yes</td> 
1013   * <td headers="ri syn_scp rec_req">yes</td> 
1014   * <td headers="ri syn_scp send_rep">yes</td> 
1015   * <td headers="ri syn_scp send_exc">yes</td> 
1016   * <td headers="ri syn_scp send_oth">yes</td></tr>
1017   * 
1018   * <tr><th id="rep_status">reply_status</th>
1019   * <td headers="ri rep_status rec_req_ser_con">no </td>
1020   * <td headers="ri rep_status rec_req">no </td>
1021   * <td headers="ri rep_status send_rep">yes</td>
1022   * <td headers="ri rep_status send_exc">yes</td>
1023   * <td headers="ri rep_status send_oth">yes</td></tr>
1024   * 
1025   * <tr><th id="fwd_ref">forward_reference</th>
1026   * <td headers="ri fwd_ref rec_req_ser_con">no </td>
1027   * <td headers="ri fwd_ref rec_req">no </td>
1028   * <td headers="ri fwd_ref send_rep">no </td>
1029   * <td headers="ri fwd_ref send_exc">no </td>
1030   * <td headers="ri fwd_ref send_oth">yes<sub>2</sub></td></tr>
1031   * 
1032   * <tr><th id="get_slt">get_slot</th>
1033   * <td headers="ri get_slt rec_req_ser_con">yes</td>
1034   * <td headers="ri get_slt rec_req">yes</td>
1035   * <td headers="ri get_slt send_rep">yes</td>
1036   * <td headers="ri get_slt send_exc">yes</td>
1037   * <td headers="ri get_slt send_oth">yes</td></tr>
1038   * 
1039   * <tr><th id="get_req_sc">get_request_service_context</th>
1040   * <td headers="ri get_req_sc rec_req_ser_con">yes</td>
1041   * <td headers="ri get_req_sc rec_req">no </td>
1042   * <td headers="ri get_req_sc send_rep">yes</td>
1043   * <td headers="ri get_req_sc send_exc">yes</td>
1044   * <td headers="ri get_req_sc send_oth">yes</td></tr>
1045   * 
1046   * <tr><th id="get_rep_sc">get_reply_service_context</th>
1047   * <td headers="ri get_rep_sc rec_req_ser_con">no </td>
1048   * <td headers="ri get_rep_sc rec_req">no </td>
1049   * <td headers="ri get_rep_sc send_rep">yes</td>
1050   * <td headers="ri get_rep_sc send_exc">yes</td>
1051   * <td headers="ri get_rep_sc send_oth">yes</td></tr>
1052   * 
1053   * <tr>
1054   *   <th id="sri" colspan=6><i>ServerRequestInfo-specific:</i></th>
1055   * </tr>
1056   * 
1057   * <tr><th id="sndg_exc">sending_exception</th>
1058   * <td headers="sri sndg_exc rec_req_ser_con">no </td>
1059   * <td headers="sri sndg_exc rec_req">no </td>
1060   * <td headers="sri sndg_exc send_rep">no </td>
1061   * <td headers="sri sndg_exc send_exc">yes</td>
1062   * <td headers="sri sndg_exc send_oth">no </td></tr>
1063   * 
1064   * <tr><th id="obj_id">object_id</th>
1065   * <td headers="sri obj_id rec_req_ser_con">no </td>
1066   * <td headers="sri obj_id rec_req">yes</td>
1067   * <td headers="sri obj_id send_rep">yes</td>
1068   * <td headers="sri obj_id send_exc">yes<sub>3</sub></td>
1069   * <td headers="sri obj_id send_oth">yes<sub>3</sub></td></tr>
1070   * 
1071   * <tr><th id="ada_id">adapter_id</th>
1072   * <td headers="sri ada_id rec_req_ser_con">no </td>
1073   * <td headers="sri ada_id rec_req">yes</td>
1074   * <td headers="sri ada_id send_rep">yes</td>
1075   * <td headers="sri ada_id send_exc">yes<sub>3</sub></td>
1076   * <td headers="sri ada_id send_oth">yes<sub>3</sub></td></tr>
1077   * 
1078   * <tr><th id="srv_id">server_id</th>
1079   * <td headers="sri srv_id rec_req_ser_con">no </td>
1080   * <td headers="sri srv_id rec_req">yes</td>
1081   * <td headers="sri srv_id send_rep">yes</td>
1082   * <td headers="sri srv_id send_exc">yes</td>
1083   * <td headers="sri srv_id send_oth">yes</td></tr>
1084   *
1085   * <tr><th id="orb_id">orb_id</th>
1086   * <td headers="sri orb_id rec_req_ser_con">no </td>
1087   * <td headers="sri orb_id rec_req">yes</td>
1088   * <td headers="sri orb_id send_rep">yes</td>
1089   * <td headers="sri orb_id send_exc">yes</td>
1090   * <td headers="sri orb_id send_oth">yes</td></tr>
1091   *
1092   * <tr><th id="ada_nam">adapter_name</th>
1093   * <td headers="sri ada_nam rec_req_ser_con">no </td>
1094   * <td headers="sri ada_nam rec_req">yes</td>
1095   * <td headers="sri ada_nam send_rep">yes</td>
1096   * <td headers="sri ada_nam send_exc">yes</td>
1097   * <td headers="sri ada_nam send_oth">yes</td></tr>
1098   *
1099   * <tr><th id="tmdi">target_most_derived_interface</th>
1100   * <td headers="sri tmdi rec_req_ser_con">no </td>
1101   * <td headers="sri tmdi rec_req">yes</td>
1102   * <td headers="sri tmdi send_rep">no<sub>4</sub></td>
1103   * <td headers="sri tmdi send_exc">no<sub>4</sub></td>
1104   * <td headers="sri tmdi send_oth">no<sub>4</sub></td></tr>
1105   * 
1106   * <tr><th id="gsp">get_server_policy</th>
1107   * <td headers="sri gsp rec_req_ser_con">yes</td>
1108   * <td headers="sri gsp rec_req">yes</td>
1109   * <td headers="sri gsp send_rep">yes</td>
1110   * <td headers="sri gsp send_exc">yes</td>
1111   * <td headers="sri gsp send_oth">yes</td></tr>
1112   * 
1113   * <tr><th id="set_slt">set_slot</th>
1114   * <td headers="sri set_slt rec_req_ser_con">yes</td>
1115   * <td headers="sri set_slt rec_req">yes</td>
1116   * <td headers="sri set_slt send_rep">yes</td>
1117   * <td headers="sri set_slt send_exc">yes</td>
1118   * <td headers="sri set_slt send_oth">yes</td></tr>
1119   * 
1120   * <tr><th id="tar_isa">target_is_a</th>
1121   * <td headers="sri tar_isa rec_req_ser_con">no </td>
1122   * <td headers="sri tar_isa rec_req">yes</td>
1123   * <td headers="sri tar_isa send_rep">no<sub>4</sub></td>
1124   * <td headers="sri tar_isa send_exc">no<sub>4</sub></td>
1125   * <td headers="sri tar_isa send_oth">no<sub>4</sub></td></tr>
1126   * 
1127   * <tr><th id="add_rep_sc">add_reply_service_context</th>
1128   * <td headers="sri add_rep_sc rec_req_ser_con">yes</td>
1129   * <td headers="sri add_rep_sc rec_req">yes</td>
1130   * <td headers="sri add_rep_sc send_rep">yes</td>
1131   * <td headers="sri add_rep_sc send_exc">yes</td>
1132   * <td headers="sri add_rep_sc send_oth">yes</td></tr>
1133   * </tbody>
1134   * </table>
1135   *
1136   * <ol>
1137   *   <li>When <code>ServerRequestInfo</code> is passed to 
1138   *       <code>receive_request</code>, there is an entry in the list for 
1139   *       every argument, whether in, inout, or out. But only the in and 
1140   *       inout arguments will be available.</li>
1141   *   <li>If the <code>reply_status</code> attribute is not 
1142   *       <code>LOCATION_FORWARD</code>, accessing this attribute will throw
1143   *       <code>BAD_INV_ORDER</code> with a standard minor code of 14.</li>
1144   *   <li>If the servant locator caused a location forward, or thrown an 
1145   *       exception, this attribute/operation may not be available in this 
1146   *       interception point. <code>NO_RESOURCES</code> with a standard minor 
1147   *       code of 1 will be thrown if it is not available.</li>
1148   *   <li>The operation is not available in this interception point because 
1149   *       the necessary information requires access to the target object's 
1150   *       servant, which may no longer be available to the ORB. For example, 
1151   *       if the object's adapter is a POA that uses a 
1152   *       <code>ServantLocator</code>, then the ORB invokes the interception 
1153   *       point after it calls <code>ServantLocator.postinvoke()</code>.</li>
1154   * </ol>
1155   *
1156   * @see ServerRequestInterceptor
1157   */
1158  local interface ServerRequestInfo : RequestInfo {
1159
1160    /**
1161     * Returns an any which contains the exception to be returned to 
1162     * the client. 
1163     * <p>
1164     * If the exception is a user exception which cannot be inserted into 
1165     * an any (e.g., it is unknown or the bindings don't provide the 
1166     * <code>TypeCode</code>), then this attribute will be an any 
1167     * containing the system exception <code>UNKNOWN</code> with a 
1168     * standard minor code of 1.
1169     *
1170     * @see <a href="package-summary.html#unimpl">
1171     *     <code>PortableInterceptor</code> package comments for 
1172     *     limitations / unimplemented features</a>
1173     */
1174    readonly attribute any sending_exception;
1175
1176    /**
1177     * Returns the opaque <code>object_id</code> describing the target of 
1178     * the operation invocation.
1179     */
1180    readonly attribute ObjectId object_id;
1181
1182    /** 
1183     * Returns the opaque identifier for the object adapter.
1184     */
1185    readonly attribute CORBA::OctetSeq adapter_id;
1186
1187    /**
1188     * Returns the server ID that was specified on ORB::init using the -ORBServerId
1189     * argument.
1190     */
1191    readonly attribute ServerId server_id ;
1192
1193    /** 
1194     * Returns the ID that was used to create the ORB.
1195     */
1196    readonly attribute ORBId orb_id ;
1197
1198    /** 
1199     * Returns the sequence of strings that identifies the object
1200     * adapter instance that is handling this request.
1201     */
1202    readonly attribute AdapterName adapter_name ;
1203
1204    /**
1205     * Returns the repository id for the most derived interface of the 
1206     * servant.
1207     */
1208    readonly attribute CORBA::RepositoryId 
1209      target_most_derived_interface;
1210
1211    /**
1212     * Returns the policy in effect for this operation for the given 
1213     * policy type. The returned <code>CORBA.Policy</code> object shall 
1214     * only be a policy whose type was registered via 
1215     * <code>register_policy_factory</code>. 
1216     * 
1217     * @param type The <code>CORBA.PolicyType</code> which specifies the 
1218     *     policy to be returned. 
1219     * @return The <code>CORBA.Policy</code> obtained with the given 
1220     *     policy type.
1221     * @exception INV_POLICY thrown, with a standard minor code of 2, if
1222     *     a policy for the given type was not registered via 
1223     *     <code>register_policy_factory</code>.
1224     * @see ORBInitInfo#register_policy_factory
1225     */
1226    CORBA::Policy get_server_policy 
1227      (in CORBA::PolicyType type);
1228
1229    /**
1230     * Allows an Interceptor to set a slot in the 
1231     * <code>PortableInterceptor.Current</code> that is in the scope of 
1232     * the request. If data already exists in that slot, it will be 
1233     * overwritten. 
1234     * 
1235     * @param id The id of the slot. 
1236     * @param data The data, in the form of an any, to store in that slot.
1237     * @exception InvalidSlot thrown if the ID does not define an allocated 
1238     *     slot. 
1239     * @see Current
1240     */
1241    void set_slot (in SlotId id, in any data) raises (InvalidSlot);
1242
1243    /**
1244     * Returns true if the servant is the given repository id, 
1245     * false if it is not. 
1246     *
1247     * @param id The caller wants to know if the servant is this 
1248     *     repository id. 
1249     * @return Is the servant the given RepositoryId?
1250     */
1251    boolean target_is_a (in CORBA::RepositoryId id);
1252
1253    /**
1254     * Allows Interceptors to add service contexts to the request. 
1255     * <p>
1256     * There is no declaration of the order of the service contexts. 
1257     * They may or may not appear in the order that they are added. 
1258     *
1259     * @param service_context The <code>IOP.ServiceContext</code> to add to 
1260     *     the reply. 
1261     * @param replace Indicates the behavior of this operation when a 
1262     *     service context already exists with the given ID. If false, 
1263     *     then <code>BAD_INV_ORDER</code> with a standard minor code of 15 
1264     *     is thrown. If true, then the existing service context is 
1265     *     replaced by the new one.
1266     * @exception BAD_INV_ORDER thrown, with a standard minor code of 15, if
1267     *     replace is false and a service context already exists with the
1268     *     given ID.
1269     */
1270    void add_reply_service_context (
1271      in IOP::ServiceContext service_context,
1272      in boolean replace);
1273  };
1274
1275  /**
1276   * Client-side request interceptor.
1277   * <p>
1278   * A request Interceptor is designed to intercept the flow of a 
1279   * request/reply sequence through the ORB at specific points so that 
1280   * services can query the request information and manipulate the service 
1281   * contexts which are propagated between clients and servers. The primary 
1282   * use of request Interceptors is to enable ORB services to transfer 
1283   * context information between clients and servers. There are two types 
1284   * of request Interceptors: client-side and server-side. 
1285   * <p>
1286   * To write a client-side Interceptor, implement the 
1287   * <code>ClientRequestInterceptor</code> interface. 
1288   *
1289   * @see ClientRequestInfo
1290   */
1291  local interface ClientRequestInterceptor : Interceptor {
1292    /**
1293     * Allows an Interceptor to query request information and modify the 
1294     * service context before the request is sent to the server.
1295     * <p>
1296     * This interception point may throw a system exception. If it does, 
1297     * no other Interceptors' <code>send_request</code> operations are called. 
1298     * Those Interceptors on the Flow Stack are popped and their 
1299     * <code>receive_exception</code> interception points are called. This 
1300     * interception point may also throw a <code>ForwardRequest</code> 
1301     * exception. If an Interceptor throws this exception, no other 
1302     * Interceptors' <code>send_request</code> operations are 
1303     * called. Those Interceptors on the Flow Stack are popped and their 
1304     * <code>receive_other</code> interception points are called. 
1305     * <p>
1306     * Compliant Interceptors shall properly follow completion_status 
1307     * semantics if they throw a system exception from this interception 
1308     * point. The <code>completion_status</code> shall be 
1309     * <code>COMPLETED_NO</code>.
1310     *
1311     * @param ri Information about the current request being intercepted.
1312     * @exception ForwardRequest If thrown, indicates to the ORB that a
1313     *     retry of the request should occur with the new object given in
1314     *     the exception.
1315     */
1316    void send_request  (in ClientRequestInfo ri) raises (ForwardRequest);
1317
1318    /**
1319     * Allows an Interceptor to query information during a Time-Independent 
1320     * Invocation (TII) polling get reply sequence. 
1321     * <p>
1322     * With TII, an application may poll for a response to a request sent 
1323     * previously by the polling client or some other client. This poll is 
1324     * reported to Interceptors through the <code>send_poll</code> 
1325     * interception point and the response is returned through the 
1326     * <code>receive_reply</code> or <code>receive_exception</code> 
1327     * interception points.  If the response is not available before the
1328     * poll time-out expires, the system exception <code>TIMEOUT</code> is
1329     * thrown and <code>receive_exception</code> is called with this 
1330     * exception. 
1331     * <p>
1332     * This interception point may throw a system exception. If it does, 
1333     * no other Interceptors' <code>send_poll</code> operations are 
1334     * called. Those Interceptors on the Flow Stack are popped and their 
1335     * <code>receive_exception</code> interception points are called. 
1336     * <p>
1337     * Compliant Interceptors shall properly follow 
1338     * <code>completion_status</code> semantics if they throw a system 
1339     * exception from this interception point. The completion_status shall be 
1340     * <code>COMPLETED_NO</code>.
1341     * 
1342     * @param ri Information about the current request being intercepted.
1343     * @exception TIMEOUT thrown if the response is not available before 
1344     *     the poll time-out expires
1345     */
1346    void send_poll (in ClientRequestInfo ri);
1347
1348    /**
1349     * Allows an Interceptor to query the information on a reply after it 
1350     * is returned from the server and before control is returned to the 
1351     * client. 
1352     * <p>
1353     * This interception point may throw a system exception. If it does, 
1354     * no other Interceptors' <code>receive_reply</code> operations are 
1355     * called. The remaining Interceptors in the Flow Stack shall have 
1356     * their <code>receive_exception</code> interception point called. 
1357     * <p>
1358     * Compliant Interceptors shall properly follow 
1359     * <code>completion_status</code> semantics if they throw a system 
1360     * exception from this interception point. The 
1361     * <code>completion_status</code> shall be <code>COMPLETED_YES</code>.
1362     *
1363     * @param ri Information about the current request being intercepted.
1364     */
1365    void receive_reply (in ClientRequestInfo ri);
1366
1367    /**
1368     * Indicates to the interceptor that an exception occurred.  Allows
1369     * an Interceptor to query the exception's information before it is 
1370     * thrown to the client.
1371     * <p>
1372     * This interception point may throw a system exception. This has the 
1373     * effect of changing the exception which successive Interceptors 
1374     * popped from the Flow Stack receive on their calls to 
1375     * <code>receive_exception</code>. The exception thrown to the client 
1376     * will be the last exception thrown by an Interceptor, or the original 
1377     * exception if no Interceptor changes the exception. 
1378     * <p>
1379     * This interception point may also throw a <code>ForwardRequest</code> 
1380     * exception.  If an Interceptor throws this exception, no other 
1381     * Interceptors' <code>receive_exception</code> operations are called. 
1382     * The remaining Interceptors in the Flow Stack are popped and have their 
1383     * <code>receive_other</code> interception point called. 
1384     * <p>
1385     * If the <code>completion_status</code> of the exception is not 
1386     * <code>COMPLETED_NO</code>, then it is inappropriate for this 
1387     * interception point to throw a <code>ForwardRequest</code> exception. 
1388     * The request s at-most-once semantics would be lost. 
1389     * <p>
1390     * Compliant Interceptors shall properly follow 
1391     * <code>completion_status</code> semantics if they throw a system 
1392     * exception from this interception point. If the original exception is 
1393     * a system exception, the <code>completion_status</code> of the new 
1394     * exception shall be the same as on the original. If the original 
1395     * exception is a user exception, then the <code>completion_status</code> 
1396     * of the new exception shall be <code>COMPLETED_YES</code>. 
1397     * <p>
1398     * Under some conditions, depending on what policies are in effect, an 
1399     * exception (such as <code>COMM_FAILURE</code>) may result in a retry 
1400     * of the request. While this retry is a new request with respect to 
1401     * Interceptors, there is one point of correlation between the original 
1402     * request and the retry: because control has not returned to the 
1403     * client, the <code>PortableInterceptor.Current</code> for both the 
1404     * original request and the retrying request is the same.
1405     *
1406     * @param ri Information about the current request being intercepted.
1407     * @exception ForwardRequest If thrown, indicates to the ORB that a
1408     *     retry of the request should occur with the new object given in
1409     *     the exception.
1410     */
1411    void receive_exception (in ClientRequestInfo ri) raises (ForwardRequest);
1412
1413    /**
1414     * Allows an Interceptor to query the information available when a 
1415     * request results in something other than a normal reply or an 
1416     * exception. For example, a request could result in a retry 
1417     * (e.g., a GIOP Reply with a <code>LOCATION_FORWARD</code> status was 
1418     * received); or on asynchronous calls, the reply does not immediately 
1419     * follow the request, but control shall return to the client and an 
1420     * ending interception point shall be called. 
1421     * <p>
1422     * For retries, depending on the policies in effect, a new request may or 
1423     * may not follow when a retry has been indicated. If a new request does 
1424     * follow, while this request is a new request, with respect to 
1425     * Interceptors, there is one point of correlation between the original 
1426     * request and the retry: because control has not returned to the client, 
1427     * the request scoped <code>PortableInterceptor.Current</code> for both 
1428     * the original request and the retrying request is the same.  
1429     * <p>
1430     * This interception point may throw a system exception. If it does, no 
1431     * other Interceptors' <code>receive_other</code> operations are called. 
1432     * The remaining Interceptors in the Flow Stack are popped and have 
1433     * their <code>receive_exception</code> interception point called.
1434     * <p>
1435     * This interception point may also throw a <code>ForwardRequest</code> 
1436     * exception.  If an Interceptor throws this exception, successive 
1437     * Interceptors' <code>receive_other</code> operations are called with 
1438     * the new information provided by the <code>ForwardRequest</code> 
1439     * exception. 
1440     * <p>
1441     * Compliant Interceptors shall properly follow 
1442     * <code>completion_status</code> semantics if they throw a system 
1443     * exception from this interception point. The 
1444     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>. 
1445     * If the target invocation had completed, this interception point 
1446     * would not be called.
1447     * 
1448     * @param ri Information about the current request being intercepted.
1449     * @exception ForwardRequest If thrown, indicates to the ORB that a
1450     *     retry of the request should occur with the new object given in
1451     *     the exception.
1452     */
1453    void receive_other (in ClientRequestInfo ri) raises (ForwardRequest);
1454  };
1455
1456  /**
1457   * Server-side request interceptor.
1458   * <p>
1459   * A request Interceptor is designed to intercept the flow of a 
1460   * request/reply sequence through the ORB at specific points so that 
1461   * services can query the request information and manipulate the service 
1462   * contexts which are propagated between clients and servers. The primary 
1463   * use of request Interceptors is to enable ORB services to transfer 
1464   * context information between clients and servers. There are two types 
1465   * of request Interceptors: client-side and server-side. 
1466   * <p>
1467   * To write a server-side Interceptor, implement the 
1468   * ServerRequestInterceptor interface.
1469   *
1470   * @see ServerRequestInfo
1471   */
1472  local interface ServerRequestInterceptor : Interceptor {
1473    /**
1474     * Allows the interceptor to process service context information.
1475     * <p>
1476     * At this interception point, Interceptors must get their service 
1477     * context information from the incoming request transfer it to 
1478     * <code>PortableInterceptor.Current</code>'s slots.  
1479     * <p>
1480     * This interception point is called before the servant manager is called. 
1481     * Operation parameters are not yet available at this point. This 
1482     * interception point may or may not execute in the same thread as 
1483     * the target invocation. 
1484     * <p>
1485     * This interception point may throw a system exception. If it does, 
1486     * no other Interceptors' <code>receive_request_service_contexts</code> 
1487     * operations are called. Those Interceptors on the Flow Stack are 
1488     * popped and their <code>send_exception</code> interception points are 
1489     * called. 
1490     * <p>
1491     * This interception point may also throw a <code>ForwardRequest</code> 
1492     * exception.  If an Interceptor throws this exception, no other 
1493     * Interceptors' <code>receive_request_service_contexts</code> operations 
1494     * are called. Those Interceptors on the Flow Stack are popped and 
1495     * their <code>send_other</code> interception points are called. 
1496     * <p>
1497     * Compliant Interceptors shall properly follow 
1498     * <code>completion_status</code> semantics if they throw a system 
1499     * exception from this interception point. The 
1500     * <code>completion_status</code> shall be COMPLETED_NO.
1501     *
1502     * @param ri Information about the current request being intercepted.
1503     * @exception ForwardRequest If thrown, indicates to the ORB that a
1504     *     retry of the request should occur with the new object given in
1505     *     the exception.
1506     */
1507    void receive_request_service_contexts (in ServerRequestInfo ri) 
1508      raises (ForwardRequest);
1509
1510    /**
1511     * Allows an Interceptor to query request information after all the 
1512     * information, including operation parameters, are available. This 
1513     * interception point shall execute in the same thread as the target 
1514     * invocation.
1515     * <p>
1516     * In the DSI model, since the parameters are first available when 
1517     * the user code calls <code>arguments</code>, <code>receive_request</code>
1518     * is called from within <code>arguments</code>. It is possible that 
1519     * <code>arguments</code> is not called in the DSI model. The target 
1520     * may call <code>set_exception</code> before calling 
1521     * <code>arguments</code>. The ORB shall guarantee that 
1522     * <code>receive_request</code> is called once, either through 
1523     * <code>arguments</code> or through <code>set_exception</code>. If it 
1524     * is called through <code>set_exception</code>, requesting the 
1525     * arguments will result in <code>NO_RESOURCES</code> being thrown with 
1526     * a standard minor code of 1. 
1527     * <p>
1528     * This interception point may throw a system exception. If it does, no 
1529     * other Interceptors' <code>receive_request</code> operations are 
1530     * called. Those Interceptors on the Flow Stack are popped and their 
1531     * <code>send_exception</code> interception points are called. 
1532     * <p>
1533     * This interception point may also throw a <code>ForwardRequest</code> 
1534     * exception.  If an Interceptor throws this exception, no other 
1535     * Interceptors' <code>receive_request</code> operations are called. 
1536     * Those Interceptors on the Flow Stack are popped and their 
1537     * <code>send_other</code> interception points are called.
1538     * <p>
1539     * Compliant Interceptors shall properly follow 
1540     * <code>completion_status</code> semantics if they throw a system 
1541     * exception from this interception point. The 
1542     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>.
1543     *
1544     * @param ri Information about the current request being intercepted.
1545     * @exception ForwardRequest If thrown, indicates to the ORB that a
1546     *     retry of the request should occur with the new object given in
1547     *     the exception.
1548     */
1549    void receive_request (in ServerRequestInfo ri) raises (ForwardRequest);
1550
1551    /**
1552     * Allows an Interceptor to query reply information and modify the 
1553     * reply service context after the target operation has been invoked 
1554     * and before the reply is returned to the client. This interception 
1555     * point shall execute in the same thread as the target invocation. 
1556     * <p>
1557     * This interception point may throw a system exception. If it does, 
1558     * no other Interceptors' <code>send_reply</code> operations are called. 
1559     * The remaining Interceptors in the Flow Stack shall have their 
1560     * <code>send_exception</code> interception point called. 
1561     * <p>
1562     * Compliant Interceptors shall properly follow 
1563     * <code>completion_status</code> semantics if they throw a 
1564     * system exception from this interception point. The 
1565     * <code>completion_status</code> shall be <code>COMPLETED_YES</code>.
1566     *
1567     * @param ri Information about the current request being intercepted.
1568     */
1569    void send_reply (in ServerRequestInfo ri);
1570
1571    /**
1572     * Allows an Interceptor to query the exception information and modify 
1573     * the reply service context before the exception is thrown to the client. 
1574     * When an exception occurs, this interception point is called. This 
1575     * interception point shall execute in the same thread as the target 
1576     * invocation. 
1577     * <p>
1578     * This interception point may throw a system exception. This has the 
1579     * effect of changing the exception which successive Interceptors 
1580     * popped from the Flow Stack receive on their calls to 
1581     * <code>send_exception</code>. The exception thrown to the client will 
1582     * be the last exception thrown by an Interceptor, or the original 
1583     * exception if no Interceptor changes the exception. 
1584     * <p>
1585     * This interception point may also throw a <code>ForwardRequest</code> 
1586     * exception.  If an Interceptor throws this exception, no other 
1587     * Interceptors' <code>send_exception</code> operations are called. The 
1588     * remaining Interceptors in the Flow Stack shall have their 
1589     * <code>send_other</code> interception points called. 
1590     * <p>
1591     * If the <code>completion_status</code> of the exception is not 
1592     * <code>COMPLETED_NO</code>, then it is inappropriate for this 
1593     * interception point to throw a <code>ForwardRequest</code> exception. 
1594     * The request's at-most-once semantics would be lost. 
1595     * <p>
1596     * Compliant Interceptors shall properly follow 
1597     * <code>completion_status</code> semantics if they throw a system 
1598     * exception from this interception point. If the original exception 
1599     * is a system exception, the <code>completion_status</code> of the new 
1600     * exception shall be the same as on the original. If the original 
1601     * exception is a user exception, then the <code>completion_status</code> 
1602     * of the new exception shall be <code>COMPLETED_YES</code>.
1603     *
1604     * @param ri Information about the current request being intercepted.
1605     * @exception ForwardRequest If thrown, indicates to the ORB that a
1606     *     retry of the request should occur with the new object given in
1607     *     the exception.
1608     */
1609    void send_exception (in ServerRequestInfo ri) raises (ForwardRequest);
1610
1611    /**
1612     * Allows an Interceptor to query the information available when a 
1613     * request results in something other than a normal reply or an 
1614     * exception. For example, a request could result in a retry 
1615     * (e.g., a GIOP Reply with a <code>LOCATION_FORWARD</code> status was 
1616     * received). This interception point shall execute in the same thread 
1617     * as the target invocation. 
1618     * <p>
1619     * This interception point may throw a system exception. If it does, 
1620     * no other Interceptors' <code>send_other</code> operations are called. 
1621     * The remaining Interceptors in the Flow Stack shall have their 
1622     * <code>send_exception</code> interception points called. 
1623     * <p>
1624     * This interception point may also throw a <code>ForwardRequest</code> 
1625     * exception.  If an Interceptor throws this exception, successive 
1626     * Interceptors' <code>send_other</code> operations are called with 
1627     * the new information provided by the <code>ForwardRequest</code> 
1628     * exception. 
1629     * <p>
1630     * Compliant Interceptors shall properly follow 
1631     * <code>completion_status</code> semantics if they throw a system 
1632     * exception from this interception point. The 
1633     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>.
1634     *
1635     * @param ri Information about the current request being intercepted.
1636     * @exception ForwardRequest If thrown, indicates to the ORB that a
1637     *     retry of the request should occur with the new object given in
1638     *     the exception.
1639     */
1640    void send_other (in ServerRequestInfo ri) raises (ForwardRequest);
1641  };
1642
1643  /** The object reference factory.  This provides the capability of
1644  * creating an object reference.
1645  */
1646  abstract valuetype ObjectReferenceFactory {
1647    /** make_object creates a CORBA object reference according
1648    * to the data in this template, with the given repository ID and
1649    * object ID.
1650    */
1651    Object make_object( in string repositoryId, in ObjectId object_id ) ;
1652  } ;
1653    
1654  /** The object reference template.  An instance of this must
1655   * exist for each object adapter created in an ORB.  The server_id,
1656   * orb_id, and adapter_name attributes uniquely identify this template
1657   * within the scope of an IMR.  Note that adapter_id is similarly unique
1658   * within the same scope, but it is opaque, and less useful in many
1659   * cases.
1660   */
1661  abstract valuetype ObjectReferenceTemplate : ObjectReferenceFactory {
1662
1663    readonly attribute ServerId server_id ;
1664
1665    readonly attribute ORBId orb_id ;
1666
1667    readonly attribute AdapterName adapter_name ;
1668  } ;
1669
1670  /** Sequence of object reference templates is used for reporting state
1671   * changes that do not occur on the adapter manager.
1672   */
1673  typedef sequence<ObjectReferenceTemplate> ObjectReferenceTemplateSeq ;
1674
1675  /** Adapter manager identifier.  Every object adapter has an adapter manager,
1676   * indicated in this API only through the ID.  A group of object adapter
1677   * instances may share the same adapter manager, in which case state transitions
1678   * reported for the adapter manager are observed by all object adapters with the
1679   * same adapter manager ID.
1680   */
1681  typedef long AdapterManagerId ;
1682
1683  /** Type of object adapter state.  State changes are reported either to
1684   * the object adapter or to the adapter manager.
1685   */
1686  typedef short AdapterState ;
1687
1688  /** Object adapter state that holds requests temporarily until the 
1689   * state is changed.
1690   */
1691  const AdapterState HOLDING	    = 0 ;
1692
1693  /** Object adapter state that indicates normal request processing.
1694   */
1695  const AdapterState ACTIVE	    = 1 ;
1696
1697  /** Object adapter state that causes all requests to be discarded.
1698   */
1699  const AdapterState DISCARDING   = 2 ;
1700
1701  /** Object adapter state that causes all requests to be discarded.
1702   * This state indicates that the adapter is shutting down.
1703   */
1704  const AdapterState INACTIVE     = 3 ;
1705
1706  /** Object adapter state indicating that the adapter has been destroyed.
1707   */
1708  const AdapterState NON_EXISTENT = 4 ;
1709
1710  /**
1711   * Provides the server-side ORB service with access to the applicable 
1712   * policies during IOR construction and the ability to add components. 
1713   * The ORB passes an instance of its implementation of this interface as 
1714   * a parameter to <code>IORInterceptor.establish_components</code>.
1715   *
1716   * @see IORInterceptor
1717   */
1718  local interface IORInfo {
1719
1720    /**
1721     * Allows an ORB service implementation to determine what server side 
1722     * policy of a particular type is in effect for an IOR being 
1723     * constructed.  When the IOR being constructed is for an object 
1724     * implemented using a POA, all Policy objects passed to the 
1725     * <code>PortableServer.POA.create_POA</code> call that created that 
1726     * POA are accessable via <code>get_effective_policy</code>. 
1727     * <p>
1728     * If a policy for the given type is not known to the ORB, then this 
1729     * operation will throw <code>INV_POLICY</code> with a standard minor 
1730     * code of 2. 
1731     * 
1732     * @param type an int specifying the type of policy to return. 
1733     * @return The effective <code>CORBA.Policy</code> object of the 
1734     *     requested type. If the given policy type is known, but no policy 
1735     *     of that type is in effect, then this operation will return a 
1736     *     nil object reference.
1737     */
1738    CORBA::Policy get_effective_policy 
1739      (in CORBA::PolicyType type);
1740
1741    /**
1742     * A portable ORB service implementation calls 
1743     * <code>add_ior_component</code> from its implementation of 
1744     * <code>establish_components</code> to add a tagged component to the 
1745     * set which will be included when constructing IORs. The components in 
1746     * this set will be included in all profiles. 
1747     * <p>
1748     * Any number of components may exist with the same component ID. 
1749     * 
1750     * @param tagged_component The IOP.TaggedComponent to add.
1751     */
1752    void add_ior_component 
1753      (in IOP::TaggedComponent tagged_component);
1754
1755    /**
1756     * A portable ORB service implementation calls 
1757     * <code>add_ior_component_to_profile</code> from its implementation of 
1758     * <code>establish_components</code> to add a tagged component to the 
1759     * set which will be included when constructing IORs. The components in 
1760     * this set will be included in the specified profile. 
1761     * <p>
1762     * Any number of components may exist with the same component ID. 
1763     * 
1764     * @param tagged_component The <code>IOP.TaggedComponent</code> to add. 
1765     * @param profile_id The profile id of the profile to 
1766     *     which this component will be added.
1767     * @exception BAD_PARAM thrown, with a standard minor code of 29, if the 
1768     *     given profile ID does not define a known profile or it is 
1769     *     impossible to add components to that profile.
1770     */
1771    void add_ior_component_to_profile (
1772      in IOP::TaggedComponent tagged_component,
1773      in IOP::ProfileId profile_id);
1774
1775    /** Return the adapter manager id of the object adapter
1776     * that was just created and is running IOR interceptors.
1777     */
1778    readonly attribute AdapterManagerId manager_id ;
1779
1780    /** Return the adapter state of the object adapter
1781     * that was just created and is running IOR interceptors.
1782     */
1783    readonly attribute AdapterState state ;
1784
1785    /** Return the object reference template of the object adapter
1786     * that was just created and is running IOR interceptors.
1787     */
1788    readonly attribute ObjectReferenceTemplate adapter_template ;
1789
1790    /** On read, returns the current factory that will be used to create
1791     * object references for the object adapter that was just created
1792     * and is running IOR interceptors.  By default, this factory is the same
1793     * as the value of the adapter_template attribute.  The current_factory 
1794     * may also be set to another object reference template inside an
1795     * IORInterceptor_3_0.
1796     */
1797    attribute ObjectReferenceFactory current_factory ;
1798  };
1799
1800  /**
1801   * Interceptor used to establish tagged components in the profiles within 
1802   * an IOR.
1803   * <p>
1804   * In some cases, a portable ORB service implementation may need to add 
1805   * information describing the server's or object's ORB service related 
1806   * capabilities to object references in order to enable the ORB service 
1807   * implementation in the client to function properly. 
1808   * <p>
1809   * This is supported through the <code>IORInterceptor</code> and 
1810   * <code>IORInfo</code> interfaces. 
1811   *
1812   * @see IORInfo
1813   */
1814  local interface IORInterceptor : Interceptor {
1815    /**
1816     * A server side ORB calls the <code>establish_components</code> 
1817     * operation on all registered <code>IORInterceptor</code> instances 
1818     * when it is assembling the list of components that will be included 
1819     * in the profile or profiles of an object reference. This operation 
1820     * is not necessarily called for each individual object reference. 
1821     * In the case of the POA, this operation is called each time POA::create_POA
1822     * is called.  In any case, <code>establish_components</code> is 
1823     * guaranteed to be called at least once for each distinct set of 
1824     * server policies. 
1825     * <p>
1826     * An implementation of <code>establish_components</code> must not 
1827     * throw exceptions. If it does, the ORB shall ignore the exception 
1828     * and proceed to call the next IOR Interceptor's 
1829     * <code>establish_components</code> operation. 
1830     *
1831     * @param info The <code>IORInfo</code> instance used by the ORB 
1832     *     service to query applicable policies and add components to be 
1833     *     included in the generated IORs.
1834     */
1835    void establish_components (in IORInfo info);
1836  };
1837
1838  local interface IORInterceptor_3_0 : IORInterceptor {
1839    /** The components_established method is invoked on all registered 
1840     * IORInterceptor_3_0 instances after establish_components
1841     * has been invoked on all registered IORInterceptor instances.
1842     * The adapter_template is available in info during this call.
1843     * The current_factory may be get or set in info during this call.
1844     * <p>
1845     * Any exception thrown from this method is handled by the Object 
1846     * Adapter that called this interceptor.  In the case of the POA,
1847     * an exception results in a OBJ_ADAPTER exception with an OMG
1848     * standard minor code of 6.
1849     * @param info The IORInfo for the object adapter being created.
1850     */
1851    void components_established( in IORInfo info ) ;
1852
1853    /** Called whenever the state of an adapter manager changes.
1854     * For the POA, that is the POAManager.  If the state change
1855     * is reported through <code>adapter_manager_state_changed</code>,
1856     * it is not reported through <code>adapter_state_changed</code>.
1857     * @param id the adapter manager id of the adapter manager that 
1858     * changed state
1859     * @param state the new state of the adapter manager
1860     */
1861    void adapter_manager_state_changed( in AdapterManagerId id, 
1862	in AdapterState state ) ;
1863
1864    /** Called whenever the state of an object adapter changes, and
1865     * the state change is not caused by an adapter manager.  Such
1866     * changes are reported to all registered <code>IORInterceptor_3_0</code> 
1867     * instances.
1868     * @param templates the sequence of <code>ObjectReferenceTemplate</code> instances
1869     *     on which this state change occurred.
1870     * @param state the new <code>AdapterState</code> shared by all of the templates.
1871     */
1872    void adapter_state_changed( in ObjectReferenceTemplateSeq templates, 
1873	in AdapterState state ) ;
1874  };
1875
1876  /**
1877   * Enables policy types to be constructed using 
1878   * <code>CORBA.ORB.create_policy</code>.
1879   * <p>
1880   * A portable ORB service implementation registers an instance of the 
1881   * <code>PolicyFactory</code> interface during ORB initialization in order 
1882   * to enable its policy types to be constructed using 
1883   * <code>CORBA.ORB.create_policy</code>. The POA is required to preserve 
1884   * any policy which is registered with <code>ORBInitInfo</code> in this 
1885   * manner.
1886   *
1887   * @see ORBInitInfo#register_policy_factory
1888   */
1889  local interface PolicyFactory
1890  {
1891    /**
1892     * Returns an instance of the appropriate interface derived from 
1893     * <code>CORBA.Policy</code> whose value corresponds to the 
1894     * specified any. 
1895     * <p>
1896     * The ORB calls <code>create_policy</code> on a registered 
1897     * <code>PolicyFactory</code> instance when 
1898     * <code>CORBA.ORB.create_policy</code> is called for the 
1899     * <code>PolicyType</code> under which the <code>PolicyFactory</code> has 
1900     * been registered. The <code>create_policy</code> operation then 
1901     * returns an instance of the appropriate interface derived from 
1902     * <code>CORBA.Policy</code> whose value corresponds to the specified 
1903     * any. If it cannot, it shall throw an exception as described for 
1904     * <code>CORBA.ORB.create_policy</code>. 
1905     * 
1906     * @param type An int specifying the type of policy being created. 
1907     * @param value An any containing data with which to construct the 
1908     *     <code>CORBA.Policy</code>. 
1909     * @return A <code>CORBA.Policy</code> object of the specified type and
1910     *     value.
1911     */
1912    CORBA::Policy create_policy 
1913      (in CORBA::PolicyType type, in any value)
1914      raises (CORBA::PolicyError);
1915  };
1916
1917  /** 
1918   * Passed to each <code>ORBInitializer</code>, allowing it to
1919   * to register interceptors and perform other duties while the ORB is 
1920   * initializing.
1921   * <p>
1922   * The <code>ORBInitInfo</code> object is only valid during 
1923   * <code>ORB.init</code>.  If a service keeps a reference to its 
1924   * <code>ORBInitInfo</code> object and tries to use it after 
1925   * <code>ORB.init</code> returns, the object no longer exists and an 
1926   * <code>OBJECT_NOT_EXIST</code> exception shall be thrown.
1927   *
1928   * @see ORBInitializer
1929   */
1930  local interface ORBInitInfo {
1931
1932    /** Object id, represented as a String */
1933    typedef string ObjectId;
1934
1935    /**
1936     * Only one Interceptor of a given name can be registered with the 
1937     * ORB for each Interceptor type. If an attempt is made to register a 
1938     * second Interceptor with the same name, DuplicateName is thrown. 
1939     * <p>
1940     * An Interceptor may be anonymous, i.e., have an empty string as the 
1941     * name attribute. Any number of anonymous Interceptors may be 
1942     * registered with the ORB so, if the Interceptor being registered 
1943     * is anonymous, the registration operation will not throw 
1944     * <code>DuplicateName</code>.
1945     */
1946    exception DuplicateName {
1947      /** 
1948       * The name for which there was already an interceptor registered.
1949       */
1950      string name;
1951    };
1952
1953    /** 
1954     * This exception is thrown by 
1955     * <code>register_initial_reference</code> and 
1956     * <code>resolve_initial_references</code>. 
1957     * <code>register_initial_reference</code> throws <code>InvalidName</code>
1958     * if:
1959     * <ul>
1960     *   <li>this operation is called with an empty string id; or</li>
1961     *   <li>this operation is called with an id that is already registered,
1962     *       including the default names defined by OMG.</li>
1963     * </ul>
1964     * <code>resolve_initial_references</code> throws
1965     * <code>InvalidName</code> if the name to be resolved is invalid.
1966     */
1967    exception InvalidName {};
1968
1969    /** 
1970     * Returns the arguments passed to <code>ORB.init</code>.  They may or
1971     * may not contain the ORB's arguments.
1972     */
1973    readonly attribute CORBA::StringSeq arguments;
1974
1975    /** 
1976     * Returns the ID of the ORB being initialized.
1977     */
1978    readonly attribute string orb_id;
1979
1980    /** 
1981     * Returns the <code>IOP.CodecFactory</code>. The 
1982     * <code>CodecFactory</code> is normally obtained via a call to 
1983     * <code>ORB.resolve_initial_references( "CodecFactory" )</code>, but 
1984     * since the ORB is not yet available and Interceptors, particularly when 
1985     * processing service contexts, will require a <code>Codec</code>, a 
1986     * means of obtaining a <code>Codec</code> is necessary during ORB 
1987     * initialization.
1988     */
1989    readonly attribute IOP::CodecFactory codec_factory;
1990
1991    /** 
1992     * Identical to <code>ORB.register_initial_reference</code>. This same 
1993     * functionality exists here because the ORB, not yet fully initialized, 
1994     * is not yet available but initial references may need to be 
1995     * registered as part of Interceptor registration. The only difference 
1996     * is that the version of this operation on the ORB uses PIDL 
1997     * (<code>CORBA.ORB.ObjectId</code>) and 
1998     * (<code>CORBA.ORB.InvalidName</code>) whereas the version in this 
1999     * interface uses IDL defined in this interface; the semantics are 
2000     * identical.
2001     */
2002    void register_initial_reference (in ObjectId id, in Object obj)
2003      raises (InvalidName);
2004
2005    // This was incorrectly returning void in orbos/99-12-02, correction
2006    // from errata in orbos/00-01-01
2007    /**
2008     * Identical to <code>ORB.resolve_initial_references</code>. This same 
2009     * functionality exists here because the ORB, not yet fully initialized, 
2010     * is not yet available but initial references may be required from the 
2011     * ORB as part of Interceptor registration. The only difference is that 
2012     * the version of this operation on the ORB uses PIDL 
2013     * (<code>CORBA::ORB::ObjectId</code> and 
2014     * <code>CORBA::ORB::InvalidName</code>) whereas the version in this 
2015     * interface uses IDL defined in this interface; the semantics 
2016     * are identical.
2017     * <p>
2018     * This operation is only valid during post_init.
2019     */
2020    Object resolve_initial_references (in ObjectId id) raises (InvalidName);
2021
2022    /**
2023     * Used to add a client-side request Interceptor to the list of 
2024     * client-side request Interceptors.  
2025     *
2026     * @param interceptor The <code>ClientRequestInterceptor</code> to be 
2027     *     added.
2028     * @exception DuplicateName thrown if a client-side request Interceptor 
2029     *     has already been registered with this Interceptor's name.
2030     */
2031    void add_client_request_interceptor 
2032      (in ClientRequestInterceptor interceptor)
2033      raises (DuplicateName);
2034
2035    /** 
2036     * Used to add a server-side request Interceptor to the list of 
2037     * server-side request Interceptors.
2038     *
2039     * @param interceptor The ServerRequestInterceptor to be added.
2040     * @exception DuplicateName thrown if a server-side request Interceptor 
2041     *     has already been registered with this Interceptor's name
2042     */
2043    void add_server_request_interceptor (
2044      in ServerRequestInterceptor interceptor)
2045      raises (DuplicateName);
2046
2047    /**
2048     * Used to add an IOR Interceptor to the list of IOR Interceptors. 
2049     *
2050     * @param interceptor The IORInterceptor to be added.
2051     * @exception DuplicateName thrown if an IOR Interceptor has already 
2052     *     been registered with this Interceptor's name. 
2053     */
2054    void add_ior_interceptor (in IORInterceptor interceptor)
2055      raises (DuplicateName);
2056
2057    /**
2058     * Called to allocate a slot on <code>PortableInterceptor.Current</code>. 
2059     * <p>
2060     * Note that while slot id's can be allocated within an ORB initializer, 
2061     * the slots themselves cannot be initialized. 
2062     *
2063     * @return The index to the slot which has been allocated.
2064     * @exception BAD_INV_ORDER thrown, with a standard minor code of 14, if 
2065     *     <code>set_slot</code> or <code>get_slot</code> is called on the 
2066     *     <code>PICurrent</code> within an ORB initializer. 
2067     * @see Current
2068     */
2069    SlotId allocate_slot_id ();
2070
2071    /**
2072     * Registers a <code>PolicyFactory</code> for the given 
2073     * <code>PolicyType</code>. 
2074     * 
2075     * @param type The policy type that the given <code>PolicyFactory</code> 
2076     *     serves. 
2077     * @param policy_factory The factory for the given policy type.
2078     * @exception BAD_INV_ORDER thrown, with a standard minor code of 16, if 
2079     *     a <code>PolicyFactory</code> already exists for the given 
2080     *     <code>PolicyType</code>.
2081     */
2082    void register_policy_factory (
2083      in CORBA::PolicyType type,
2084      in PolicyFactory policy_factory);
2085  };
2086
2087  /**
2088   * Facilitates interceptor registration and ORB initialization.
2089   * <p>
2090   * Interceptors are intended to be a means by which ORB services gain 
2091   * access to ORB processing, effectively becoming part of the ORB. 
2092   * Since Interceptors are part of the ORB, when <code>ORB.init</code> 
2093   * returns an ORB, the Interceptors shall have been registered. 
2094   * Interceptors cannot be registered on an ORB after it has been 
2095   * returned by a call to <code>ORB.init</code>.
2096   * <p>
2097   * An Interceptor is registered by registering an associated 
2098   * <code>ORBInitializer</code> object which implements the 
2099   * <code>ORBInitializer</code> interface. When an ORB is initializing, 
2100   * it shall call each registered <code>ORBInitializer</code>, passing it 
2101   * an <code>ORBInitInfo</code> object which is used to register its 
2102   * Interceptor.
2103   * <p>
2104   * <b>Registering ORB Initializers in Java</b>
2105   * <p>
2106   * ORBInitializers are registered via Java ORB properties.
2107   * <p>
2108   * The property names are of the form: 
2109   *   <blockquote><code>
2110   *     org.omg.PortableInterceptor.ORBInitializerClass.&lt;Service&gt;
2111   *   </code></blockquote>
2112   * where <code>&lt;Service&gt;</code> is the string name of a class 
2113   * which implements 
2114   *   <blockquote><code>
2115   *     org.omg.PortableInterceptor.ORBInitializer
2116   *   </code></blockquote>
2117   * To avoid name collisions, the reverse DNS name convention should be 
2118   * used. For example, if company X has three initializers, it could define 
2119   * the following properties: 
2120   * <ul>
2121   *   <li><code>
2122   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init1
2123   *   </code></li>
2124   *   <li><code>
2125   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init2
2126   *   </code></li>
2127   *   <li><code>
2128   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init3
2129   *   </code></li>
2130   * </ul>
2131   * During ORB.init, these ORB properties which begin with 
2132   * <code>org.omg.PortableInterceptor.ORBInitializerClass</code> shall be 
2133   * collected, the <code>&lt;Service&gt;</code> portion of each property 
2134   * shall be extracted, an object shall be instantiated with the 
2135   * <code>&lt;Service&gt;</code> string as its class name, and the 
2136   * <code>pre_init</code> and <code>post_init</code> methods shall be 
2137   * called on that object. If there are any exceptions, the ORB shall 
2138   * ignore them and proceed. 
2139   * <p>
2140   * <b><i>Example</i></b>
2141   * <p>
2142   * A client-side logging service written by company X, for example, may 
2143   * have the following ORBInitializer implementation: 
2144   * <pre><code>
2145   * package com.x.logging;
2146   * 
2147   * import org.omg.PortableInterceptor.Interceptor; 
2148   * import org.omg.PortableInterceptor.ORBInitializer; 
2149   * import org.omg.PortableInterceptor.ORBInitInfo; 
2150   * 
2151   * public class LoggingService implements ORBInitializer { 
2152   *     void pre_init( ORBInitInfo info ) { 
2153   *         // Instantiate the Logging Service s Interceptor. 
2154   *         Interceptor interceptor = new LoggingInterceptor(); 
2155   *
2156   *         // Register the Logging Service s Interceptor. 
2157   *         info.add_client_request_interceptor( interceptor ); 
2158   *     } 
2159   * 
2160   *     void post_init( ORBInitInfo info ) { 
2161   *         // This service does not need two init points. 
2162   *     } 
2163   * } 
2164   * </code></pre>
2165   * To run a program called <code>MyApp</code> using this logging 
2166   * service, the user could type: 
2167   *   <blockquote><code>
2168   *     java 
2169   *-Dorg.omg.PortableInterceptor.ORBInitializerClass.com.x.Logging.LoggingService 
2170   *     MyApp
2171   *   </code></blockquote>
2172   * <p>
2173   * <b>Notes about Registering Interceptors</b>
2174   * <p>
2175   * Request Interceptors are registered on a per-ORB basis. 
2176   * <p>
2177   * To achieve virtual per-object Interceptors, query the policies on the 
2178   * target from within the interception points to determine whether they 
2179   * should do any work. 
2180   * <p>
2181   * To achieve virtual per-POA Interceptors, instantiate each POA with a 
2182   * different ORB. While Interceptors may be ordered administratively, 
2183   * there is no concept of order with respect to the registration of 
2184   * Interceptors. Request Interceptors are concerned with service contexts. 
2185   * Service contexts have no order, so there is no purpose for request 
2186   * Interceptors to have an order. IOR Interceptors are concerned with 
2187   * tagged components. Tagged components also have no order, so there 
2188   * is no purpose for IOR Interceptors to have an order. 
2189   * <p>
2190   * Registration code should avoid using the ORB (i.e., calling 
2191   * <code>ORB.init</code> with the provided <code>orb_id</code>). Since 
2192   * registration occurs during ORB initialization, results of invocations 
2193   * on this ORB while it is in this state are undefined. 
2194   * 
2195   * @see ORBInitInfo
2196   */
2197  local interface ORBInitializer {
2198
2199    /** 
2200     * Called during ORB initialization.  If it is expected that initial 
2201     * services registered by an interceptor will be used by other 
2202     * interceptors, then those initial services shall be registered at 
2203     * this point via calls to 
2204     * <code>ORBInitInfo.register_initial_reference</code>. 
2205     * 
2206     * @param info provides initialization attributes and operations by 
2207     *     which Interceptors can be registered.
2208     */
2209    void pre_init (in ORBInitInfo info);
2210
2211    /**
2212     * Called during ORB initialization. If a service must resolve initial 
2213     * references as part of its initialization, it can assume that all 
2214     * initial references will be available at this point. 
2215     * <p>
2216     * Calling the <code>post_init</code> operations is not the final 
2217     * task of ORB initialization. The final task, following the 
2218     * <code>post_init</code> calls, is attaching the lists of registered 
2219     * interceptors to the ORB. Therefore, the ORB does not contain the 
2220     * interceptors during calls to <code>post_init</code>. If an 
2221     * ORB-mediated call is made from within <code>post_init</code>, no 
2222     * request interceptors will be invoked on that call. 
2223     * Likewise, if an operation is performed which causes an IOR to be 
2224     * created, no IOR interceptors will be invoked. 
2225     *
2226     * @param info provides initialization attributes and 
2227     *     operations by which Interceptors can be registered.
2228     */
2229    void post_init (in ORBInitInfo info);
2230  };
2231};
2232