Interceptors.idl revision 877:a3e210a93f90
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
23 * questions.
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   *      <th>&nbsp;</th>
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>
596   *
597   *  <tr>
598   *     <td id="ri" colspan=6><i>Inherited from RequestInfo:</i></td>
599   *  </tr>
600   * 
601   *  <tr><th id="req_id"><p style="text-align:left">request_id</p></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"><p style="text-align:left">operation</p></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"><p style="text-align:left">arguments</p></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"><p style="text-align:left">exceptions</p></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"><p style="text-align:left">contexts</p></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"><p style="text-align:left">operation_context</p></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>
642   *  </tr>
643   *
644   *  <tr><th id="result"><p style="text-align:left">result</p></th>
645   *  <td headers="ri result send_req">no </td> 
646   *  <td headers="ri result send_poll">no </td> 
647   *  <td headers="ri result rec_reply">yes</td> 
648   *  <td headers="ri result rec_ex">no </td> 
649   *  <td headers="ri result rec_oth">no </td>
650   *  </tr>
651   *
652   *  <tr><th id="res_exp"><p style="text-align:left">response_expected</p></th>
653   *  <td headers="ri res_exp send_req">yes</td> 
654   *  <td headers="ri res_exp send_poll">yes</td> 
655   *  <td headers="ri res_exp rec_reply">yes</td> 
656   *  <td headers="ri res_exp rec_ex">yes</td> 
657   *  <td headers="ri res_exp rec_oth">yes</td></tr>
658   *
659   *  <tr><th id="sync_sco"><p style="text-align:left">sync_scope</p></th>
660   *  <td headers="ri sync_sco send_req">yes</td> 
661   *  <td headers="ri sync_sco send_poll">no </td> 
662   *  <td headers="ri sync_sco rec_reply">yes</td> 
663   *  <td headers="ri sync_sco rec_ex">yes</td> 
664   *  <td headers="ri sync_sco rec_oth">yes</td>
665   *  </tr>
666   *
667   *  <tr><th id="rep_stat"><p style="text-align:left">reply_status</p></th>
668   *  <td headers="ri rep_stat send_req">no </td> 
669   *  <td headers="ri rep_stat send_poll">no </td> 
670   *  <td headers="ri rep_stat rec_reply">yes</td> 
671   *  <td headers="ri rep_stat rec_ex">yes</td> 
672   *  <td headers="ri rep_stat rec_oth">yes</td></tr>
673   *
674   *  <tr><th id="for_ref"><p style="text-align:left">forward_reference</p></th>
675   *  <td headers="ri for_ref send_req">no </td>
676   *  <td headers="ri for_ref send_poll">no </td> 
677   *  <td headers="ri for_ref rec_reply">no </td> 
678   *  <td headers="ri for_ref rec_ex">no </td> 
679   *  <td headers="ri for_ref rec_oth">yes<sub>2</sub>
680   *  </td></tr>
681   *
682   *  <tr><th id="get_slot"><p style="text-align:left">get_slot</p></th>
683   *  <td headers="ri get_slot send_req">yes</td> 
684   *  <td headers="ri get_slot send_poll">yes</td> 
685   *  <td headers="ri get_slot rec_reply">yes</td> 
686   *  <td headers="ri get_slot rec_ex">yes</td> 
687   *  <td headers="ri get_slot rec_oth">yes</td></tr>
688   *
689   *  <tr><th id="grsc"><p style="text-align:left">get_request_service_context</p></th>
690   *  <td headers="ri grsc send_req">yes</td> 
691   *  <td headers="ri grsc send_poll">no </td> 
692   *  <td headers="ri grsc rec_reply">yes</td> 
693   *  <td headers="ri grsc rec_ex">yes</td> 
694   *  <td headers="ri grsc rec_oth">yes</td></tr>
695   *
696   *  <tr><th id="gpsc"><p style="text-align:left">get_reply_service_context</p></th>
697   *  <td headers="ri gpsc send_req">no </td> 
698   *  <td headers="ri gpsc send_poll">no </td> 
699   *  <td headers="ri gpsc rec_reply">yes</td> 
700   *  <td headers="ri gpsc rec_ex">yes</td> 
701   *  <td headers="ri gpsc rec_oth">yes</td>
702   *  </tr>
703   *
704   *  <tr>
705   *    <td id="cri" colspan=6><i>ClientRequestInfo-specific:</i></td>
706   *  </tr>
707   *
708   *  <tr><th id="target"><p style="text-align:left">target</p></th>
709   *  <td headers="cri target send_req">yes</td> 
710   *  <td headers="cri target send_poll">yes</td> 
711   *  <td headers="cri target rec_reply">yes</td> 
712   *  <td headers="cri target rec_ex">yes</td> 
713   *  <td headers="cri target rec_oth">yes</td></tr>
714   *
715   *  <tr><th id="eftarget"><p style="text-align:left">effective_target</p></th>
716   *  <td headers="cri eftarget send_req">yes</td> 
717   *  <td headers="cri eftarget send_poll">yes</td> 
718   *  <td headers="cri eftarget rec_reply">yes</td> 
719   *  <td headers="cri eftarget rec_ex">yes</td> 
720   *  <td headers="cri eftarget rec_oth">yes</td>
721   *  </tr>
722   *
723   *  <tr><th id="efprof"><p style="text-align:left">effective_profile</p></th>
724   *  <td headers="cri efprof send_req">yes</td> 
725   *  <td headers="cri efprof send_poll">yes</td> 
726   *  <td headers="cri efprof rec_reply">yes</td> 
727   *  <td headers="cri efprof rec_ex">yes</td> 
728   *  <td headers="cri efprof rec_oth">yes</td></tr>
729   *
730   *  <tr><th id="rxp"><p style="text-align:left">received_exception</p></th>
731   *  <td headers="cri rxp send_req">no </td> 
732   *  <td headers="cri rxp send_poll">no </td> 
733   *  <td headers="cri rxp rec_reply">no </td> 
734   *  <td headers="cri rxp rec_ex">yes</td> 
735   *  <td headers="cri rxp rec_oth">no </td></tr>
736   *
737   *  <tr><th id="rei"><p style="text-align:left">received_exception_id</p></th>
738   *  <td headers="cri rei send_req">no </td> 
739   *  <td headers="cri rei send_poll">no </td> 
740   *  <td headers="cri rei rec_reply">no </td> 
741   *  <td headers="cri rei rec_ex">yes</td> 
742   *  <td headers="cri rei rec_oth">no </td></tr>
743   *
744   *  <tr><th id="gec"><p style="text-align:left">get_effective_component</p></th>
745   *  <td headers="cri gec send_req">yes</td> 
746   *  <td headers="cri gec send_poll">no </td> 
747   *  <td headers="cri gec rec_reply">yes</td> 
748   *  <td headers="cri gec rec_ex">yes</td> 
749   *  <td headers="cri gec rec_oth">yes</td></tr>
750   *
751   *  <tr><th id="gecs"><p style="text-align:left">get_effective_components</p></th>
752   *  <td headers="cri gecs send_req">yes</td> 
753   *  <td headers="cri gecs send_poll">no </td> 
754   *  <td headers="cri gecs rec_reply">yes</td> 
755   *  <td headers="cri gecs rec_ex">yes</td> 
756   *  <td headers="cri gecs rec_oth">yes</td></tr>
757   *
758   *  <tr><th id="grpcy"><p style="text-align:left">get_request_policy</p></th>
759   *  <td headers="cri grpcy send_req">yes</td>
760   *  <td headers="cri grpcy send_poll">no </td> 
761   *  <td headers="cri grpcy rec_reply">yes</td> 
762   *  <td headers="cri grpcy rec_ex">yes</td> 
763   *  <td headers="cri grpcy rec_oth">yes</td></tr>
764   *
765   *  <tr><th id="arsc"><p style="text-align:left">add_request_service_context</p></th>
766   *    <td headers="cri arsc send_req">yes</td> 
767   *    <td headers="cri arsc send_poll">no </td> 
768   *    <td headers="cri arsc rec_reply">no </td> 
769   *    <td headers="cri arsc rec_ex">no </td> 
770   *    <td headers="cri arsc rec_oth">no </td></tr>
771   *
772   *   </tbody>
773   * </table>
774   *
775   * <ol>
776   *   <li>When <code>ClientRequestInfo</code> is passed to 
777   *       <code>send_request</code>, there is an entry in the list for every 
778   *       argument, whether in, inout, or out.  But only the in and inout 
779   *       arguments will be available.</li>
780   *   <li>If the <code>reply_status</code> atribute is not 
781   *       <code>LOCATION_FORWARD</code>, accessing this attribute will 
782   *       throw <code>BAD_INV_ORDER</code> with a standard minor code of 
783   *       14.</li>
784   * </ol>
785   *
786   * @see ClientRequestInterceptor
787   */
788  local interface ClientRequestInfo : RequestInfo {
789
790    /**
791     * Returns the object which the client called to perform the 
792     * operation. 
793     *
794     * @see #effective_target
795     */
796    readonly attribute Object target;
797
798    /**
799     * Returns the actual object on which the operation will be invoked. 
800     * If the <code>reply_status</code> is <code>LOCATION_FORWARD</code>, 
801     * then on subsequent requests, <code>effective_target</code> will 
802     * contain the forwarded IOR while target will remain unchanged. 
803     *
804     * @see #target
805     */
806    readonly attribute Object effective_target;
807
808    /**
809     * Returns the profile that will be used to send the request. If a 
810     * location forward has occurred for this operation's object and 
811     * that object's profile changed accordingly, then this profile will 
812     * be that located profile.
813     */
814    readonly attribute IOP::TaggedProfile effective_profile;
815
816    /** 
817     * Returns an any which contains the exception to be returned to 
818     * the client. 
819     * <p>
820     * If the exception is a user exception which cannot be inserted 
821     * into an any (e.g., it is unknown or the bindings don t provide 
822     * the <code>TypeCode</code>), then this attribute will be an any 
823     * containing the system exception <code>UNKNOWN</code> with a 
824     * standard minor code of 1. However, the repository id of 
825     * the exception is available in the <code>received_exception_id</code> 
826     * attribute.
827     * 
828     * @see #received_exception_id
829     */
830    readonly attribute any received_exception;
831
832    /**
833     * Returns the repository id of the exception to be returned to 
834     * the client.
835     *
836     * @see #received_exception
837     * @see <a href="package-summary.html#unimpl">
838     *     <code>PortableInterceptor</code> package comments for 
839     *     limitations / unimplemented features</a>
840     */
841    readonly attribute CORBA::RepositoryId received_exception_id;
842
843    /** 
844     * Returns the <code>IOP.TaggedComponent</code> with the given ID from 
845     * the profile selected for this request. 
846     * <p>
847     * If there is more than one component for a given component ID, it 
848     * is undefined which component this operation returns. If there is 
849     * more than one component for a given component ID, 
850     * <code>get_effective_components</code> should be called instead. 
851     * 
852     * @param id The component id of the component which 
853     *     is to be returned. 
854     * @return The <code>IOP.TaggedComponent</code> obtained with the 
855     *     given identifier.
856     * @exception BAD_PARAM thrown, with a standard minor code of 28, if
857     *     no component exists for the given component ID.
858     * @see #get_effective_components
859     */
860    IOP::TaggedComponent get_effective_component 
861      (in IOP::ComponentId id);
862
863    /**
864     * Returns an array of all tagged components with the given ID from the 
865     * profile selected for this request. 
866     * 
867     * @param id The component id of the components which are to be returned. 
868     * @return An array of <code>TaggedComponent</code> objects, each of 
869     *     which contains the given identifier.
870     * @exception BAD_PARAM thrown, with a standard minor code of 28, if
871     *     no component exists for the given component ID.
872     * @see #get_effective_component
873     */
874    IOP::TaggedComponentSeq get_effective_components 
875      (in IOP::ComponentId id);
876
877    /**
878     * Returns the given policy in effect for this operation. 
879     * 
880     * @exception INV_POLICY thrown, with a standard minor code of 1, if the 
881     *     policy type is not valid either because the specified type is 
882     *     not supported by this ORB or because a policy object of that type 
883     *     is not associated with this Object
884     * @param type The policy type which specifies the policy to be 
885     *     returned. 
886     * @return The <code>CORBA.Policy</code> obtained with the given type.
887     * @see <a href="package-summary.html#unimpl">
888     *     <code>PortableInterceptor</code> package comments for 
889     *     limitations / unimplemented features</a>
890     */
891    CORBA::Policy get_request_policy 
892      (in CORBA::PolicyType type);
893
894    /** 
895     * Allows Interceptors to add service contexts to the request. 
896     * <p>
897     * There is no declaration of the order of the service contexts. 
898     * They may or may not appear in the order that they are added. 
899     *
900     * @param service_context The <code>IOP.ServiceContext</code> to be 
901     *     added to the request. 
902     * @param replace Indicates the behavior of this operation when a 
903     *     service context already exists with the given ID. If false, 
904     *     then <code>BAD_INV_ORDER</code> with a standard minor code of 15 
905     *     is thrown. If true, then the existing service context is 
906     *     replaced by the new one.
907     */
908    void add_request_service_context (
909      in IOP::ServiceContext service_context,
910      in boolean replace);
911  };
912
913  // Should be type string
914  typedef string ServerId ;
915
916  // This should actually be the CORBA::ORBid type once that is available
917  typedef string ORBId ;
918
919  /** The name of an object adapter. This is unique only within
920   * the scope of the ORB that created the object adapter.
921   */
922  typedef org::omg::CORBA::StringSeq AdapterName ;
923
924  /** Type of an object id. This provides the identity of a particular
925   * object that was created by an object adapter.
926   */
927  typedef org::omg::CORBA::OctetSeq ObjectId ;
928
929  /**
930   * Request Information, accessible to server-side request interceptors.
931   * <p>
932   * Some attributes and operations on <code>ServerRequestInfo</code> are not 
933   * valid at all interception points.  The following table shows the validity 
934   * of each attribute or operation.  If it is not valid, attempting to access 
935   * it will result in a <code>BAD_INV_ORDER</code> being thrown with a 
936   * standard minor code of 14.
937   *
938   *
939   * <table class="plain">
940   *   <caption style="display:none">Shows the validity of each attribute or operation</caption>
941   *   <thead>
942   *     <tr>
943   *       <th>&nbsp;</th>
944   *       <th id="rec_req_ser_con" valign="bottom">receive_request_<br>service_contexts</th>
945   *       <th id="rec_req"  valign="bottom">receive_request</th>
946   *       <th id="send_rep" valign="bottom">send_reply</th>
947   *       <th id="send_exc" valign="bottom">send_exception</th>
948   *       <th id="send_oth" valign="bottom">send_other</th>
949   *     </tr>
950   *   </thead>
951   *  <tbody>
952   *
953   *
954   * <tr>
955   *   <td id="ri" colspan=6><i>Inherited from RequestInfo:</i></td>
956   * </tr>
957   *
958   * <tr><th id="req_id"><p style="text-align:left">request_id</p></th>
959   * <td headers="ri req_id rec_req_ser_con">yes</td> 
960   * <td headers="ri req_id rec_req">yes</td> 
961   * <td headers="ri req_id send_rep">yes</td> 
962   * <td headers="ri req_id send_exc">yes</td> 
963   * <td headers="ri req_id send_oth">yes</td></tr>
964   *
965   * <tr><th id="op"><p style="text-align:left">operation</p></th>
966   * <td headers="ri op rec_req_ser_con">yes</td> 
967   * <td headers="ri op rec_req">yes</td> 
968   * <td headers="ri op send_rep">yes</td> 
969   * <td headers="ri op send_exc">yes</td> 
970   * <td headers="ri op send_oth">yes</td></tr>
971   *
972   * <tr><th id="args"><p style="text-align:left">arguments</p></th>
973   * <td headers="ri args rec_req_ser_con">no </td> 
974   * <td headers="ri args rec_req">yes<sub>1</sub></td>
975   * <td headers="ri args send_rep">yes</td> 
976   * <td headers="ri args send_exc">no<sub>2</sub></td>
977   * <td headers="ri args send_oth">no<sub>2</sub>
978   * </td></tr>
979   *
980   * <tr><th id="exps"><p style="text-align:left">exceptions</p></th>
981   * <td headers="ri exps rec_req_ser_con">no </td> 
982   * <td headers="ri exps rec_req">yes</td> 
983   * <td headers="ri exps send_rep">yes</td> 
984   * <td headers="ri exps send_exc">yes</td> 
985   * <td headers="ri exps send_oth">yes</td></tr>
986   *
987   * <tr><th id="contexts"><p style="text-align:left">contexts</p></th>
988   * <td headers="ri contexts rec_req_ser_con">no </td> 
989   * <td headers="ri contexts rec_req">yes</td> 
990   * <td headers="ri contexts send_rep">yes</td> 
991   * <td headers="ri contexts send_exc">yes</td> 
992   * <td headers="ri contexts send_oth">yes</td></tr>
993   *
994   * <tr><th id="op_con"><p style="text-align:left">operation_context</p></th>
995   * <td headers="ri op_con rec_req_ser_con">no </td> 
996   * <td headers="ri op_con rec_req">yes</td> 
997   * <td headers="ri op_con send_rep">yes</td> 
998   * <td headers="ri op_con send_exc">no </td> 
999   * <td headers="ri op_con send_oth">no </td>
1000   * </tr>
1001   * 
1002   * <tr><th id="result"><p style="text-align:left">result</p></th>
1003   * <td headers="ri result rec_req_ser_con">no </td> 
1004   * <td headers="ri result rec_req">no </td> 
1005   * <td headers="ri result send_rep">yes</td> 
1006   * <td headers="ri result send_exc">no </td> 
1007   * <td headers="ri result send_oth">no </td>
1008   * </tr>
1009   *
1010   * <tr><th id="res_ex"><p style="text-align:left">response_expected</p></th>
1011   * <td headers="ri res_ex rec_req_ser_con">yes</td> 
1012   * <td headers="ri res_ex rec_req">yes</td> 
1013   * <td headers="ri res_ex send_rep">yes</td> 
1014   * <td headers="ri res_ex send_exc">yes</td> 
1015   * <td headers="ri res_ex send_oth">yes</td></tr>
1016   *
1017   * <tr><th id="syn_scp"><p style="text-align:left">sync_scope</p></th>
1018   * <td headers="ri syn_scp rec_req_ser_con">yes</td> 
1019   * <td headers="ri syn_scp rec_req">yes</td> 
1020   * <td headers="ri syn_scp send_rep">yes</td> 
1021   * <td headers="ri syn_scp send_exc">yes</td> 
1022   * <td headers="ri syn_scp send_oth">yes</td></tr>
1023   * 
1024   *    <tr><td><b>request_id</b></td>
1025   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1026   * 
1027   *    <tr><td><b>operation</b></td>
1028   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1029   * 
1030   *    <tr><td><b>arguments</b></td>
1031   *    <td>no </td> <td>yes<sub>1</sub></td>
1032   *                              <td>yes</td> <td>no<sub>2</sub></td> 
1033   *                                                        <td>no<sub>2</sub>
1034   *                                                        </td></tr>
1035   * 
1036   *    <tr><td><b>exceptions</b></td>
1037   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1038   * 
1039   *    <tr><td><b>contexts</b></td>
1040   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1041   * 
1042   *    <tr><td><b>operation_context</b></td>
1043   *    <td>no </td> <td>yes</td> <td>yes</td> <td>no </td> <td>no </td></tr>
1044   * 
1045   *    <tr><td><b>result</b></td>
1046   *    <td>no </td> <td>no </td> <td>yes</td> <td>no </td> <td>no </td></tr>
1047   * 
1048   *    <tr><td><b>response_expected</b></td>
1049   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1050   * 
1051   *    <tr><td><b>sync_scope</b></td>
1052   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1053   * 
1054   *    <tr><td><b>reply_status</b></td>
1055   *    <td>no </td> <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1056   * 
1057   *    <tr><td><b>forward_reference</b></td>
1058   *    <td>no </td> <td>no </td> <td>no </td> <td>no </td> <td>yes<sub>2</sub>
1059   * 								</td></tr>
1060   * 
1061   *    <tr><td><b>get_slot</b></td>
1062   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1063   * 
1064   *    <tr><td><b>get_request_service_context</b></td>
1065   *    <td>yes</td> <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1066   * 
1067   *    <tr><td><b>get_reply_service_context</b></td>
1068   *    <td>no </td> <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1069   * 
1070   *    <tr>
1071   *      <td colspan=6><i>ServerRequestInfo-specific:</i></td>
1072   *    </tr>
1073   * 
1074   *    <tr><td><b>sending_exception</b></td>
1075   *    <td>no </td> <td>no </td> <td>no </td> <td>yes</td> <td>no </td></tr>
1076   * 
1077   *    <tr><td><b>object_id</b></td>
1078   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes<sub>3</sub></td> 
1079   * 						       <td>yes<sub>3</sub>
1080   * 						                </td></tr>
1081   * 
1082   *    <tr><td><b>adapter_id</b></td>
1083   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes<sub>3</sub></td> 
1084   * 						       <td>yes<sub>3</sub>
1085   * 								</td></tr>
1086   * 
1087   *    <tr><td><b>server_id</b></td>
1088   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1089   *
1090   *    <tr><td><b>orb_id</b></td>
1091   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1092   *
1093   *    <tr><td><b>adapter_name</b></td>
1094   *    <td>no </td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1095   *
1096   *    <tr><td><b>target_most_derived_interface</b></td>
1097   *    <td>no </td> <td>yes</td> <td>no<sub>4</sub></td> 
1098   * 					  <td>no<sub>4</sub></td> 
1099   * 						       <td>no<sub>4</sub>
1100   * 							       </td></tr>
1101   * 
1102   *    <tr><td><b>get_server_policy</b></td>
1103   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1104   * 
1105   *    <tr><td><b>set_slot</b></td>
1106   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1107   * 
1108   *    <tr><td><b>target_is_a</b></td>
1109   *    <td>no </td> <td>yes</td> <td>no<sub>4</sub></td> 
1110   * 					  <td>no<sub>4</sub></td> 
1111   * 						       <td>no<sub>4</sub>
1112   * 							       </td></tr>
1113   * 
1114   *    <tr><td><b>add_reply_service_context</b></td>
1115   *    <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td> <td>yes</td></tr>
1116   *   </tbody>
1117   * </table>
1118   *
1119   * <ol>
1120   *   <li>When <code>ServerRequestInfo</code> is passed to 
1121   *       <code>receive_request</code>, there is an entry in the list for 
1122   *       every argument, whether in, inout, or out. But only the in and 
1123   *       inout arguments will be available.</li>
1124   *   <li>If the <code>reply_status</code> attribute is not 
1125   *       <code>LOCATION_FORWARD</code>, accessing this attribute will throw
1126   *       <code>BAD_INV_ORDER</code> with a standard minor code of 14.</li>
1127   *   <li>If the servant locator caused a location forward, or thrown an 
1128   *       exception, this attribute/operation may not be available in this 
1129   *       interception point. <code>NO_RESOURCES</code> with a standard minor 
1130   *       code of 1 will be thrown if it is not available.</li>
1131   *   <li>The operation is not available in this interception point because 
1132   *       the necessary information requires access to the target object's 
1133   *       servant, which may no longer be available to the ORB. For example, 
1134   *       if the object's adapter is a POA that uses a 
1135   *       <code>ServantLocator</code>, then the ORB invokes the interception 
1136   *       point after it calls <code>ServantLocator.postinvoke()</code>.</li>
1137   * </ol>
1138   *
1139   * @see ServerRequestInterceptor
1140   */
1141  local interface ServerRequestInfo : RequestInfo {
1142
1143    /**
1144     * Returns an any which contains the exception to be returned to 
1145     * the client. 
1146     * <p>
1147     * If the exception is a user exception which cannot be inserted into 
1148     * an any (e.g., it is unknown or the bindings don't provide the 
1149     * <code>TypeCode</code>), then this attribute will be an any 
1150     * containing the system exception <code>UNKNOWN</code> with a 
1151     * standard minor code of 1.
1152     *
1153     * @see <a href="package-summary.html#unimpl">
1154     *     <code>PortableInterceptor</code> package comments for 
1155     *     limitations / unimplemented features</a>
1156     */
1157    readonly attribute any sending_exception;
1158
1159    /**
1160     * Returns the opaque <code>object_id</code> describing the target of 
1161     * the operation invocation.
1162     */
1163    readonly attribute ObjectId object_id;
1164
1165    /** 
1166     * Returns the opaque identifier for the object adapter.
1167     */
1168    readonly attribute CORBA::OctetSeq adapter_id;
1169
1170    /**
1171     * Returns the server ID that was specified on ORB::init using the -ORBServerId
1172     * argument.
1173     */
1174    readonly attribute ServerId server_id ;
1175
1176    /** 
1177     * Returns the ID that was used to create the ORB.
1178     */
1179    readonly attribute ORBId orb_id ;
1180
1181    /** 
1182     * Returns the sequence of strings that identifies the object
1183     * adapter instance that is handling this request.
1184     */
1185    readonly attribute AdapterName adapter_name ;
1186
1187    /**
1188     * Returns the repository id for the most derived interface of the 
1189     * servant.
1190     */
1191    readonly attribute CORBA::RepositoryId 
1192      target_most_derived_interface;
1193
1194    /**
1195     * Returns the policy in effect for this operation for the given 
1196     * policy type. The returned <code>CORBA.Policy</code> object shall 
1197     * only be a policy whose type was registered via 
1198     * <code>register_policy_factory</code>. 
1199     * 
1200     * @param type The <code>CORBA.PolicyType</code> which specifies the 
1201     *     policy to be returned. 
1202     * @return The <code>CORBA.Policy</code> obtained with the given 
1203     *     policy type.
1204     * @exception INV_POLICY thrown, with a standard minor code of 2, if
1205     *     a policy for the given type was not registered via 
1206     *     <code>register_policy_factory</code>.
1207     * @see ORBInitInfo#register_policy_factory
1208     */
1209    CORBA::Policy get_server_policy 
1210      (in CORBA::PolicyType type);
1211
1212    /**
1213     * Allows an Interceptor to set a slot in the 
1214     * <code>PortableInterceptor.Current</code> that is in the scope of 
1215     * the request. If data already exists in that slot, it will be 
1216     * overwritten. 
1217     * 
1218     * @param id The id of the slot. 
1219     * @param data The data, in the form of an any, to store in that slot.
1220     * @exception InvalidSlot thrown if the ID does not define an allocated 
1221     *     slot. 
1222     * @see Current
1223     */
1224    void set_slot (in SlotId id, in any data) raises (InvalidSlot);
1225
1226    /**
1227     * Returns true if the servant is the given repository id, 
1228     * false if it is not. 
1229     *
1230     * @param id The caller wants to know if the servant is this 
1231     *     repository id. 
1232     * @return Is the servant the given RepositoryId?
1233     */
1234    boolean target_is_a (in CORBA::RepositoryId id);
1235
1236    /**
1237     * Allows Interceptors to add service contexts to the request. 
1238     * <p>
1239     * There is no declaration of the order of the service contexts. 
1240     * They may or may not appear in the order that they are added. 
1241     *
1242     * @param service_context The <code>IOP.ServiceContext</code> to add to 
1243     *     the reply. 
1244     * @param replace Indicates the behavior of this operation when a 
1245     *     service context already exists with the given ID. If false, 
1246     *     then <code>BAD_INV_ORDER</code> with a standard minor code of 15 
1247     *     is thrown. If true, then the existing service context is 
1248     *     replaced by the new one.
1249     * @exception BAD_INV_ORDER thrown, with a standard minor code of 15, if
1250     *     replace is false and a service context already exists with the
1251     *     given ID.
1252     */
1253    void add_reply_service_context (
1254      in IOP::ServiceContext service_context,
1255      in boolean replace);
1256  };
1257
1258  /**
1259   * Client-side request interceptor.
1260   * <p>
1261   * A request Interceptor is designed to intercept the flow of a 
1262   * request/reply sequence through the ORB at specific points so that 
1263   * services can query the request information and manipulate the service 
1264   * contexts which are propagated between clients and servers. The primary 
1265   * use of request Interceptors is to enable ORB services to transfer 
1266   * context information between clients and servers. There are two types 
1267   * of request Interceptors: client-side and server-side. 
1268   * <p>
1269   * To write a client-side Interceptor, implement the 
1270   * <code>ClientRequestInterceptor</code> interface. 
1271   *
1272   * @see ClientRequestInfo
1273   */
1274  local interface ClientRequestInterceptor : Interceptor {
1275    /**
1276     * Allows an Interceptor to query request information and modify the 
1277     * service context before the request is sent to the server.
1278     * <p>
1279     * This interception point may throw a system exception. If it does, 
1280     * no other Interceptors' <code>send_request</code> operations are called. 
1281     * Those Interceptors on the Flow Stack are popped and their 
1282     * <code>receive_exception</code> interception points are called. This 
1283     * interception point may also throw a <code>ForwardRequest</code> 
1284     * exception. If an Interceptor throws this exception, no other 
1285     * Interceptors' <code>send_request</code> operations are 
1286     * called. Those Interceptors on the Flow Stack are popped and their 
1287     * <code>receive_other</code> interception points are called. 
1288     * <p>
1289     * Compliant Interceptors shall properly follow completion_status 
1290     * semantics if they throw a system exception from this interception 
1291     * point. The <code>completion_status</code> shall be 
1292     * <code>COMPLETED_NO</code>.
1293     *
1294     * @param ri Information about the current request being intercepted.
1295     * @exception ForwardRequest If thrown, indicates to the ORB that a
1296     *     retry of the request should occur with the new object given in
1297     *     the exception.
1298     */
1299    void send_request  (in ClientRequestInfo ri) raises (ForwardRequest);
1300
1301    /**
1302     * Allows an Interceptor to query information during a Time-Independent 
1303     * Invocation (TII) polling get reply sequence. 
1304     * <p>
1305     * With TII, an application may poll for a response to a request sent 
1306     * previously by the polling client or some other client. This poll is 
1307     * reported to Interceptors through the <code>send_poll</code> 
1308     * interception point and the response is returned through the 
1309     * <code>receive_reply</code> or <code>receive_exception</code> 
1310     * interception points.  If the response is not available before the
1311     * poll time-out expires, the system exception <code>TIMEOUT</code> is
1312     * thrown and <code>receive_exception</code> is called with this 
1313     * exception. 
1314     * <p>
1315     * This interception point may throw a system exception. If it does, 
1316     * no other Interceptors' <code>send_poll</code> operations are 
1317     * called. Those Interceptors on the Flow Stack are popped and their 
1318     * <code>receive_exception</code> interception points are called. 
1319     * <p>
1320     * Compliant Interceptors shall properly follow 
1321     * <code>completion_status</code> semantics if they throw a system 
1322     * exception from this interception point. The completion_status shall be 
1323     * <code>COMPLETED_NO</code>.
1324     * 
1325     * @param ri Information about the current request being intercepted.
1326     * @exception TIMEOUT thrown if the response is not available before 
1327     *     the poll time-out expires
1328     */
1329    void send_poll (in ClientRequestInfo ri);
1330
1331    /**
1332     * Allows an Interceptor to query the information on a reply after it 
1333     * is returned from the server and before control is returned to the 
1334     * client. 
1335     * <p>
1336     * This interception point may throw a system exception. If it does, 
1337     * no other Interceptors' <code>receive_reply</code> operations are 
1338     * called. The remaining Interceptors in the Flow Stack shall have 
1339     * their <code>receive_exception</code> interception point called. 
1340     * <p>
1341     * Compliant Interceptors shall properly follow 
1342     * <code>completion_status</code> semantics if they throw a system 
1343     * exception from this interception point. The 
1344     * <code>completion_status</code> shall be <code>COMPLETED_YES</code>.
1345     *
1346     * @param ri Information about the current request being intercepted.
1347     */
1348    void receive_reply (in ClientRequestInfo ri);
1349
1350    /**
1351     * Indicates to the interceptor that an exception occurred.  Allows
1352     * an Interceptor to query the exception's information before it is 
1353     * thrown to the client.
1354     * <p>
1355     * This interception point may throw a system exception. This has the 
1356     * effect of changing the exception which successive Interceptors 
1357     * popped from the Flow Stack receive on their calls to 
1358     * <code>receive_exception</code>. The exception thrown to the client 
1359     * will be the last exception thrown by an Interceptor, or the original 
1360     * exception if no Interceptor changes the exception. 
1361     * <p>
1362     * This interception point may also throw a <code>ForwardRequest</code> 
1363     * exception.  If an Interceptor throws this exception, no other 
1364     * Interceptors' <code>receive_exception</code> operations are called. 
1365     * The remaining Interceptors in the Flow Stack are popped and have their 
1366     * <code>receive_other</code> interception point called. 
1367     * <p>
1368     * If the <code>completion_status</code> of the exception is not 
1369     * <code>COMPLETED_NO</code>, then it is inappropriate for this 
1370     * interception point to throw a <code>ForwardRequest</code> exception. 
1371     * The request s at-most-once semantics would be lost. 
1372     * <p>
1373     * Compliant Interceptors shall properly follow 
1374     * <code>completion_status</code> semantics if they throw a system 
1375     * exception from this interception point. If the original exception is 
1376     * a system exception, the <code>completion_status</code> of the new 
1377     * exception shall be the same as on the original. If the original 
1378     * exception is a user exception, then the <code>completion_status</code> 
1379     * of the new exception shall be <code>COMPLETED_YES</code>. 
1380     * <p>
1381     * Under some conditions, depending on what policies are in effect, an 
1382     * exception (such as <code>COMM_FAILURE</code>) may result in a retry 
1383     * of the request. While this retry is a new request with respect to 
1384     * Interceptors, there is one point of correlation between the original 
1385     * request and the retry: because control has not returned to the 
1386     * client, the <code>PortableInterceptor.Current</code> for both the 
1387     * original request and the retrying request is the same.
1388     *
1389     * @param ri Information about the current request being intercepted.
1390     * @exception ForwardRequest If thrown, indicates to the ORB that a
1391     *     retry of the request should occur with the new object given in
1392     *     the exception.
1393     */
1394    void receive_exception (in ClientRequestInfo ri) raises (ForwardRequest);
1395
1396    /**
1397     * Allows an Interceptor to query the information available when a 
1398     * request results in something other than a normal reply or an 
1399     * exception. For example, a request could result in a retry 
1400     * (e.g., a GIOP Reply with a <code>LOCATION_FORWARD</code> status was 
1401     * received); or on asynchronous calls, the reply does not immediately 
1402     * follow the request, but control shall return to the client and an 
1403     * ending interception point shall be called. 
1404     * <p>
1405     * For retries, depending on the policies in effect, a new request may or 
1406     * may not follow when a retry has been indicated. If a new request does 
1407     * follow, while this request is a new request, with respect to 
1408     * Interceptors, there is one point of correlation between the original 
1409     * request and the retry: because control has not returned to the client, 
1410     * the request scoped <code>PortableInterceptor.Current</code> for both 
1411     * the original request and the retrying request is the same.  
1412     * <p>
1413     * This interception point may throw a system exception. If it does, no 
1414     * other Interceptors' <code>receive_other</code> operations are called. 
1415     * The remaining Interceptors in the Flow Stack are popped and have 
1416     * their <code>receive_exception</code> interception point called.
1417     * <p>
1418     * This interception point may also throw a <code>ForwardRequest</code> 
1419     * exception.  If an Interceptor throws this exception, successive 
1420     * Interceptors' <code>receive_other</code> operations are called with 
1421     * the new information provided by the <code>ForwardRequest</code> 
1422     * exception. 
1423     * <p>
1424     * Compliant Interceptors shall properly follow 
1425     * <code>completion_status</code> semantics if they throw a system 
1426     * exception from this interception point. The 
1427     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>. 
1428     * If the target invocation had completed, this interception point 
1429     * would not be called.
1430     * 
1431     * @param ri Information about the current request being intercepted.
1432     * @exception ForwardRequest If thrown, indicates to the ORB that a
1433     *     retry of the request should occur with the new object given in
1434     *     the exception.
1435     */
1436    void receive_other (in ClientRequestInfo ri) raises (ForwardRequest);
1437  };
1438
1439  /**
1440   * Server-side request interceptor.
1441   * <p>
1442   * A request Interceptor is designed to intercept the flow of a 
1443   * request/reply sequence through the ORB at specific points so that 
1444   * services can query the request information and manipulate the service 
1445   * contexts which are propagated between clients and servers. The primary 
1446   * use of request Interceptors is to enable ORB services to transfer 
1447   * context information between clients and servers. There are two types 
1448   * of request Interceptors: client-side and server-side. 
1449   * <p>
1450   * To write a server-side Interceptor, implement the 
1451   * ServerRequestInterceptor interface.
1452   *
1453   * @see ServerRequestInfo
1454   */
1455  local interface ServerRequestInterceptor : Interceptor {
1456    /**
1457     * Allows the interceptor to process service context information.
1458     * <p>
1459     * At this interception point, Interceptors must get their service 
1460     * context information from the incoming request transfer it to 
1461     * <code>PortableInterceptor.Current</code>'s slots.  
1462     * <p>
1463     * This interception point is called before the servant manager is called. 
1464     * Operation parameters are not yet available at this point. This 
1465     * interception point may or may not execute in the same thread as 
1466     * the target invocation. 
1467     * <p>
1468     * This interception point may throw a system exception. If it does, 
1469     * no other Interceptors' <code>receive_request_service_contexts</code> 
1470     * operations are called. Those Interceptors on the Flow Stack are 
1471     * popped and their <code>send_exception</code> interception points are 
1472     * called. 
1473     * <p>
1474     * This interception point may also throw a <code>ForwardRequest</code> 
1475     * exception.  If an Interceptor throws this exception, no other 
1476     * Interceptors' <code>receive_request_service_contexts</code> operations 
1477     * are called. Those Interceptors on the Flow Stack are popped and 
1478     * their <code>send_other</code> interception points are called. 
1479     * <p>
1480     * Compliant Interceptors shall properly follow 
1481     * <code>completion_status</code> semantics if they throw a system 
1482     * exception from this interception point. The 
1483     * <code>completion_status</code> shall be COMPLETED_NO.
1484     *
1485     * @param ri Information about the current request being intercepted.
1486     * @exception ForwardRequest If thrown, indicates to the ORB that a
1487     *     retry of the request should occur with the new object given in
1488     *     the exception.
1489     */
1490    void receive_request_service_contexts (in ServerRequestInfo ri) 
1491      raises (ForwardRequest);
1492
1493    /**
1494     * Allows an Interceptor to query request information after all the 
1495     * information, including operation parameters, are available. This 
1496     * interception point shall execute in the same thread as the target 
1497     * invocation.
1498     * <p>
1499     * In the DSI model, since the parameters are first available when 
1500     * the user code calls <code>arguments</code>, <code>receive_request</code>
1501     * is called from within <code>arguments</code>. It is possible that 
1502     * <code>arguments</code> is not called in the DSI model. The target 
1503     * may call <code>set_exception</code> before calling 
1504     * <code>arguments</code>. The ORB shall guarantee that 
1505     * <code>receive_request</code> is called once, either through 
1506     * <code>arguments</code> or through <code>set_exception</code>. If it 
1507     * is called through <code>set_exception</code>, requesting the 
1508     * arguments will result in <code>NO_RESOURCES</code> being thrown with 
1509     * a standard minor code of 1. 
1510     * <p>
1511     * This interception point may throw a system exception. If it does, no 
1512     * other Interceptors' <code>receive_request</code> operations are 
1513     * called. Those Interceptors on the Flow Stack are popped and their 
1514     * <code>send_exception</code> interception points are called. 
1515     * <p>
1516     * This interception point may also throw a <code>ForwardRequest</code> 
1517     * exception.  If an Interceptor throws this exception, no other 
1518     * Interceptors' <code>receive_request</code> operations are called. 
1519     * Those Interceptors on the Flow Stack are popped and their 
1520     * <code>send_other</code> interception points are called.
1521     * <p>
1522     * Compliant Interceptors shall properly follow 
1523     * <code>completion_status</code> semantics if they throw a system 
1524     * exception from this interception point. The 
1525     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>.
1526     *
1527     * @param ri Information about the current request being intercepted.
1528     * @exception ForwardRequest If thrown, indicates to the ORB that a
1529     *     retry of the request should occur with the new object given in
1530     *     the exception.
1531     */
1532    void receive_request (in ServerRequestInfo ri) raises (ForwardRequest);
1533
1534    /**
1535     * Allows an Interceptor to query reply information and modify the 
1536     * reply service context after the target operation has been invoked 
1537     * and before the reply is returned to the client. This interception 
1538     * point shall execute in the same thread as the target invocation. 
1539     * <p>
1540     * This interception point may throw a system exception. If it does, 
1541     * no other Interceptors' <code>send_reply</code> operations are called. 
1542     * The remaining Interceptors in the Flow Stack shall have their 
1543     * <code>send_exception</code> interception point called. 
1544     * <p>
1545     * Compliant Interceptors shall properly follow 
1546     * <code>completion_status</code> semantics if they throw a 
1547     * system exception from this interception point. The 
1548     * <code>completion_status</code> shall be <code>COMPLETED_YES</code>.
1549     *
1550     * @param ri Information about the current request being intercepted.
1551     */
1552    void send_reply (in ServerRequestInfo ri);
1553
1554    /**
1555     * Allows an Interceptor to query the exception information and modify 
1556     * the reply service context before the exception is thrown to the client. 
1557     * When an exception occurs, this interception point is called. This 
1558     * interception point shall execute in the same thread as the target 
1559     * invocation. 
1560     * <p>
1561     * This interception point may throw a system exception. This has the 
1562     * effect of changing the exception which successive Interceptors 
1563     * popped from the Flow Stack receive on their calls to 
1564     * <code>send_exception</code>. The exception thrown to the client will 
1565     * be the last exception thrown by an Interceptor, or the original 
1566     * exception if no Interceptor changes the exception. 
1567     * <p>
1568     * This interception point may also throw a <code>ForwardRequest</code> 
1569     * exception.  If an Interceptor throws this exception, no other 
1570     * Interceptors' <code>send_exception</code> operations are called. The 
1571     * remaining Interceptors in the Flow Stack shall have their 
1572     * <code>send_other</code> interception points called. 
1573     * <p>
1574     * If the <code>completion_status</code> of the exception is not 
1575     * <code>COMPLETED_NO</code>, then it is inappropriate for this 
1576     * interception point to throw a <code>ForwardRequest</code> exception. 
1577     * The request's at-most-once semantics would be lost. 
1578     * <p>
1579     * Compliant Interceptors shall properly follow 
1580     * <code>completion_status</code> semantics if they throw a system 
1581     * exception from this interception point. If the original exception 
1582     * is a system exception, the <code>completion_status</code> of the new 
1583     * exception shall be the same as on the original. If the original 
1584     * exception is a user exception, then the <code>completion_status</code> 
1585     * of the new exception shall be <code>COMPLETED_YES</code>.
1586     *
1587     * @param ri Information about the current request being intercepted.
1588     * @exception ForwardRequest If thrown, indicates to the ORB that a
1589     *     retry of the request should occur with the new object given in
1590     *     the exception.
1591     */
1592    void send_exception (in ServerRequestInfo ri) raises (ForwardRequest);
1593
1594    /**
1595     * Allows an Interceptor to query the information available when a 
1596     * request results in something other than a normal reply or an 
1597     * exception. For example, a request could result in a retry 
1598     * (e.g., a GIOP Reply with a <code>LOCATION_FORWARD</code> status was 
1599     * received). This interception point shall execute in the same thread 
1600     * as the target invocation. 
1601     * <p>
1602     * This interception point may throw a system exception. If it does, 
1603     * no other Interceptors' <code>send_other</code> operations are called. 
1604     * The remaining Interceptors in the Flow Stack shall have their 
1605     * <code>send_exception</code> interception points called. 
1606     * <p>
1607     * This interception point may also throw a <code>ForwardRequest</code> 
1608     * exception.  If an Interceptor throws this exception, successive 
1609     * Interceptors' <code>send_other</code> operations are called with 
1610     * the new information provided by the <code>ForwardRequest</code> 
1611     * exception. 
1612     * <p>
1613     * Compliant Interceptors shall properly follow 
1614     * <code>completion_status</code> semantics if they throw a system 
1615     * exception from this interception point. The 
1616     * <code>completion_status</code> shall be <code>COMPLETED_NO</code>.
1617     *
1618     * @param ri Information about the current request being intercepted.
1619     * @exception ForwardRequest If thrown, indicates to the ORB that a
1620     *     retry of the request should occur with the new object given in
1621     *     the exception.
1622     */
1623    void send_other (in ServerRequestInfo ri) raises (ForwardRequest);
1624  };
1625
1626  /** The object reference factory.  This provides the capability of
1627  * creating an object reference.
1628  */
1629  abstract valuetype ObjectReferenceFactory {
1630    /** make_object creates a CORBA object reference according
1631    * to the data in this template, with the given repository ID and
1632    * object ID.
1633    */
1634    Object make_object( in string repositoryId, in ObjectId object_id ) ;
1635  } ;
1636    
1637  /** The object reference template.  An instance of this must
1638   * exist for each object adapter created in an ORB.  The server_id,
1639   * orb_id, and adapter_name attributes uniquely identify this template
1640   * within the scope of an IMR.  Note that adapter_id is similarly unique
1641   * within the same scope, but it is opaque, and less useful in many
1642   * cases.
1643   */
1644  abstract valuetype ObjectReferenceTemplate : ObjectReferenceFactory {
1645
1646    readonly attribute ServerId server_id ;
1647
1648    readonly attribute ORBId orb_id ;
1649
1650    readonly attribute AdapterName adapter_name ;
1651  } ;
1652
1653  /** Sequence of object reference templates is used for reporting state
1654   * changes that do not occur on the adapter manager.
1655   */
1656  typedef sequence<ObjectReferenceTemplate> ObjectReferenceTemplateSeq ;
1657
1658  /** Adapter manager identifier.  Every object adapter has an adapter manager,
1659   * indicated in this API only through the ID.  A group of object adapter
1660   * instances may share the same adapter manager, in which case state transitions
1661   * reported for the adapter manager are observed by all object adapters with the
1662   * same adapter manager ID.
1663   */
1664  typedef long AdapterManagerId ;
1665
1666  /** Type of object adapter state.  State changes are reported either to
1667   * the object adapter or to the adapter manager.
1668   */
1669  typedef short AdapterState ;
1670
1671  /** Object adapter state that holds requests temporarily until the 
1672   * state is changed.
1673   */
1674  const AdapterState HOLDING	    = 0 ;
1675
1676  /** Object adapter state that indicates normal request processing.
1677   */
1678  const AdapterState ACTIVE	    = 1 ;
1679
1680  /** Object adapter state that causes all requests to be discarded.
1681   */
1682  const AdapterState DISCARDING   = 2 ;
1683
1684  /** Object adapter state that causes all requests to be discarded.
1685   * This state indicates that the adapter is shutting down.
1686   */
1687  const AdapterState INACTIVE     = 3 ;
1688
1689  /** Object adapter state indicating that the adapter has been destroyed.
1690   */
1691  const AdapterState NON_EXISTENT = 4 ;
1692
1693  /**
1694   * Provides the server-side ORB service with access to the applicable 
1695   * policies during IOR construction and the ability to add components. 
1696   * The ORB passes an instance of its implementation of this interface as 
1697   * a parameter to <code>IORInterceptor.establish_components</code>.
1698   *
1699   * @see IORInterceptor
1700   */
1701  local interface IORInfo {
1702
1703    /**
1704     * Allows an ORB service implementation to determine what server side 
1705     * policy of a particular type is in effect for an IOR being 
1706     * constructed.  When the IOR being constructed is for an object 
1707     * implemented using a POA, all Policy objects passed to the 
1708     * <code>PortableServer.POA.create_POA</code> call that created that 
1709     * POA are accessable via <code>get_effective_policy</code>. 
1710     * <p>
1711     * If a policy for the given type is not known to the ORB, then this 
1712     * operation will throw <code>INV_POLICY</code> with a standard minor 
1713     * code of 2. 
1714     * 
1715     * @param type an int specifying the type of policy to return. 
1716     * @return The effective <code>CORBA.Policy</code> object of the 
1717     *     requested type. If the given policy type is known, but no policy 
1718     *     of that type is in effect, then this operation will return a 
1719     *     nil object reference.
1720     */
1721    CORBA::Policy get_effective_policy 
1722      (in CORBA::PolicyType type);
1723
1724    /**
1725     * A portable ORB service implementation calls 
1726     * <code>add_ior_component</code> from its implementation of 
1727     * <code>establish_components</code> to add a tagged component to the 
1728     * set which will be included when constructing IORs. The components in 
1729     * this set will be included in all profiles. 
1730     * <p>
1731     * Any number of components may exist with the same component ID. 
1732     * 
1733     * @param tagged_component The IOP.TaggedComponent to add.
1734     */
1735    void add_ior_component 
1736      (in IOP::TaggedComponent tagged_component);
1737
1738    /**
1739     * A portable ORB service implementation calls 
1740     * <code>add_ior_component_to_profile</code> from its implementation of 
1741     * <code>establish_components</code> to add a tagged component to the 
1742     * set which will be included when constructing IORs. The components in 
1743     * this set will be included in the specified profile. 
1744     * <p>
1745     * Any number of components may exist with the same component ID. 
1746     * 
1747     * @param tagged_component The <code>IOP.TaggedComponent</code> to add. 
1748     * @param profile_id The profile id of the profile to 
1749     *     which this component will be added.
1750     * @exception BAD_PARAM thrown, with a standard minor code of 29, if the 
1751     *     given profile ID does not define a known profile or it is 
1752     *     impossible to add components to that profile.
1753     */
1754    void add_ior_component_to_profile (
1755      in IOP::TaggedComponent tagged_component,
1756      in IOP::ProfileId profile_id);
1757
1758    /** Return the adapter manager id of the object adapter
1759     * that was just created and is running IOR interceptors.
1760     */
1761    readonly attribute AdapterManagerId manager_id ;
1762
1763    /** Return the adapter state of the object adapter
1764     * that was just created and is running IOR interceptors.
1765     */
1766    readonly attribute AdapterState state ;
1767
1768    /** Return the object reference template of the object adapter
1769     * that was just created and is running IOR interceptors.
1770     */
1771    readonly attribute ObjectReferenceTemplate adapter_template ;
1772
1773    /** On read, returns the current factory that will be used to create
1774     * object references for the object adapter that was just created
1775     * and is running IOR interceptors.  By default, this factory is the same
1776     * as the value of the adapter_template attribute.  The current_factory 
1777     * may also be set to another object reference template inside an
1778     * IORInterceptor_3_0.
1779     */
1780    attribute ObjectReferenceFactory current_factory ;
1781  };
1782
1783  /**
1784   * Interceptor used to establish tagged components in the profiles within 
1785   * an IOR.
1786   * <p>
1787   * In some cases, a portable ORB service implementation may need to add 
1788   * information describing the server's or object's ORB service related 
1789   * capabilities to object references in order to enable the ORB service 
1790   * implementation in the client to function properly. 
1791   * <p>
1792   * This is supported through the <code>IORInterceptor</code> and 
1793   * <code>IORInfo</code> interfaces. 
1794   *
1795   * @see IORInfo
1796   */
1797  local interface IORInterceptor : Interceptor {
1798    /**
1799     * A server side ORB calls the <code>establish_components</code> 
1800     * operation on all registered <code>IORInterceptor</code> instances 
1801     * when it is assembling the list of components that will be included 
1802     * in the profile or profiles of an object reference. This operation 
1803     * is not necessarily called for each individual object reference. 
1804     * In the case of the POA, this operation is called each time POA::create_POA
1805     * is called.  In any case, <code>establish_components</code> is 
1806     * guaranteed to be called at least once for each distinct set of 
1807     * server policies. 
1808     * <p>
1809     * An implementation of <code>establish_components</code> must not 
1810     * throw exceptions. If it does, the ORB shall ignore the exception 
1811     * and proceed to call the next IOR Interceptor's 
1812     * <code>establish_components</code> operation. 
1813     *
1814     * @param info The <code>IORInfo</code> instance used by the ORB 
1815     *     service to query applicable policies and add components to be 
1816     *     included in the generated IORs.
1817     */
1818    void establish_components (in IORInfo info);
1819  };
1820
1821  local interface IORInterceptor_3_0 : IORInterceptor {
1822    /** The components_established method is invoked on all registered 
1823     * IORInterceptor_3_0 instances after establish_components
1824     * has been invoked on all registered IORInterceptor instances.
1825     * The adapter_template is available in info during this call.
1826     * The current_factory may be get or set in info during this call.
1827     * <p>
1828     * Any exception thrown from this method is handled by the Object 
1829     * Adapter that called this interceptor.  In the case of the POA,
1830     * an exception results in a OBJ_ADAPTER exception with an OMG
1831     * standard minor code of 6.
1832     * @param info The IORInfo for the object adapter being created.
1833     */
1834    void components_established( in IORInfo info ) ;
1835
1836    /** Called whenever the state of an adapter manager changes.
1837     * For the POA, that is the POAManager.  If the state change
1838     * is reported through <code>adapter_manager_state_changed</code>,
1839     * it is not reported through <code>adapter_state_changed</code>.
1840     * @param id the adapter manager id of the adapter manager that 
1841     * changed state
1842     * @param state the new state of the adapter manager
1843     */
1844    void adapter_manager_state_changed( in AdapterManagerId id, 
1845	in AdapterState state ) ;
1846
1847    /** Called whenever the state of an object adapter changes, and
1848     * the state change is not caused by an adapter manager.  Such
1849     * changes are reported to all registered <code>IORInterceptor_3_0</code> 
1850     * instances.
1851     * @param templates the sequence of <code>ObjectReferenceTemplate</code> instances
1852     *     on which this state change occurred.
1853     * @param state the new <code>AdapterState</code> shared by all of the templates.
1854     */
1855    void adapter_state_changed( in ObjectReferenceTemplateSeq templates, 
1856	in AdapterState state ) ;
1857  };
1858
1859  /**
1860   * Enables policy types to be constructed using 
1861   * <code>CORBA.ORB.create_policy</code>.
1862   * <p>
1863   * A portable ORB service implementation registers an instance of the 
1864   * <code>PolicyFactory</code> interface during ORB initialization in order 
1865   * to enable its policy types to be constructed using 
1866   * <code>CORBA.ORB.create_policy</code>. The POA is required to preserve 
1867   * any policy which is registered with <code>ORBInitInfo</code> in this 
1868   * manner.
1869   *
1870   * @see ORBInitInfo#register_policy_factory
1871   */
1872  local interface PolicyFactory
1873  {
1874    /**
1875     * Returns an instance of the appropriate interface derived from 
1876     * <code>CORBA.Policy</code> whose value corresponds to the 
1877     * specified any. 
1878     * <p>
1879     * The ORB calls <code>create_policy</code> on a registered 
1880     * <code>PolicyFactory</code> instance when 
1881     * <code>CORBA.ORB.create_policy</code> is called for the 
1882     * <code>PolicyType</code> under which the <code>PolicyFactory</code> has 
1883     * been registered. The <code>create_policy</code> operation then 
1884     * returns an instance of the appropriate interface derived from 
1885     * <code>CORBA.Policy</code> whose value corresponds to the specified 
1886     * any. If it cannot, it shall throw an exception as described for 
1887     * <code>CORBA.ORB.create_policy</code>. 
1888     * 
1889     * @param type An int specifying the type of policy being created. 
1890     * @param value An any containing data with which to construct the 
1891     *     <code>CORBA.Policy</code>. 
1892     * @return A <code>CORBA.Policy</code> object of the specified type and
1893     *     value.
1894     */
1895    CORBA::Policy create_policy 
1896      (in CORBA::PolicyType type, in any value)
1897      raises (CORBA::PolicyError);
1898  };
1899
1900  /** 
1901   * Passed to each <code>ORBInitializer</code>, allowing it to
1902   * to register interceptors and perform other duties while the ORB is 
1903   * initializing.
1904   * <p>
1905   * The <code>ORBInitInfo</code> object is only valid during 
1906   * <code>ORB.init</code>.  If a service keeps a reference to its 
1907   * <code>ORBInitInfo</code> object and tries to use it after 
1908   * <code>ORB.init</code> returns, the object no longer exists and an 
1909   * <code>OBJECT_NOT_EXIST</code> exception shall be thrown.
1910   *
1911   * @see ORBInitializer
1912   */
1913  local interface ORBInitInfo {
1914
1915    /** Object id, represented as a String */
1916    typedef string ObjectId;
1917
1918    /**
1919     * Only one Interceptor of a given name can be registered with the 
1920     * ORB for each Interceptor type. If an attempt is made to register a 
1921     * second Interceptor with the same name, DuplicateName is thrown. 
1922     * <p>
1923     * An Interceptor may be anonymous, i.e., have an empty string as the 
1924     * name attribute. Any number of anonymous Interceptors may be 
1925     * registered with the ORB so, if the Interceptor being registered 
1926     * is anonymous, the registration operation will not throw 
1927     * <code>DuplicateName</code>.
1928     */
1929    exception DuplicateName {
1930      /** 
1931       * The name for which there was already an interceptor registered.
1932       */
1933      string name;
1934    };
1935
1936    /** 
1937     * This exception is thrown by 
1938     * <code>register_initial_reference</code> and 
1939     * <code>resolve_initial_references</code>. 
1940     * <code>register_initial_reference</code> throws <code>InvalidName</code>
1941     * if:
1942     * <ul>
1943     *   <li>this operation is called with an empty string id; or</li>
1944     *   <li>this operation is called with an id that is already registered,
1945     *       including the default names defined by OMG.</li>
1946     * </ul>
1947     * <code>resolve_initial_references</code> throws
1948     * <code>InvalidName</code> if the name to be resolved is invalid.
1949     */
1950    exception InvalidName {};
1951
1952    /** 
1953     * Returns the arguments passed to <code>ORB.init</code>.  They may or
1954     * may not contain the ORB's arguments.
1955     */
1956    readonly attribute CORBA::StringSeq arguments;
1957
1958    /** 
1959     * Returns the ID of the ORB being initialized.
1960     */
1961    readonly attribute string orb_id;
1962
1963    /** 
1964     * Returns the <code>IOP.CodecFactory</code>. The 
1965     * <code>CodecFactory</code> is normally obtained via a call to 
1966     * <code>ORB.resolve_initial_references( "CodecFactory" )</code>, but 
1967     * since the ORB is not yet available and Interceptors, particularly when 
1968     * processing service contexts, will require a <code>Codec</code>, a 
1969     * means of obtaining a <code>Codec</code> is necessary during ORB 
1970     * initialization.
1971     */
1972    readonly attribute IOP::CodecFactory codec_factory;
1973
1974    /** 
1975     * Identical to <code>ORB.register_initial_reference</code>. This same 
1976     * functionality exists here because the ORB, not yet fully initialized, 
1977     * is not yet available but initial references may need to be 
1978     * registered as part of Interceptor registration. The only difference 
1979     * is that the version of this operation on the ORB uses PIDL 
1980     * (<code>CORBA.ORB.ObjectId</code>) and 
1981     * (<code>CORBA.ORB.InvalidName</code>) whereas the version in this 
1982     * interface uses IDL defined in this interface; the semantics are 
1983     * identical.
1984     */
1985    void register_initial_reference (in ObjectId id, in Object obj)
1986      raises (InvalidName);
1987
1988    // This was incorrectly returning void in orbos/99-12-02, correction
1989    // from errata in orbos/00-01-01
1990    /**
1991     * Identical to <code>ORB.resolve_initial_references</code>. This same 
1992     * functionality exists here because the ORB, not yet fully initialized, 
1993     * is not yet available but initial references may be required from the 
1994     * ORB as part of Interceptor registration. The only difference is that 
1995     * the version of this operation on the ORB uses PIDL 
1996     * (<code>CORBA::ORB::ObjectId</code> and 
1997     * <code>CORBA::ORB::InvalidName</code>) whereas the version in this 
1998     * interface uses IDL defined in this interface; the semantics 
1999     * are identical.
2000     * <p>
2001     * This operation is only valid during post_init.
2002     */
2003    Object resolve_initial_references (in ObjectId id) raises (InvalidName);
2004
2005    /**
2006     * Used to add a client-side request Interceptor to the list of 
2007     * client-side request Interceptors.  
2008     *
2009     * @param interceptor The <code>ClientRequestInterceptor</code> to be 
2010     *     added.
2011     * @exception DuplicateName thrown if a client-side request Interceptor 
2012     *     has already been registered with this Interceptor's name.
2013     */
2014    void add_client_request_interceptor 
2015      (in ClientRequestInterceptor interceptor)
2016      raises (DuplicateName);
2017
2018    /** 
2019     * Used to add a server-side request Interceptor to the list of 
2020     * server-side request Interceptors.
2021     *
2022     * @param interceptor The ServerRequestInterceptor to be added.
2023     * @exception DuplicateName thrown if a server-side request Interceptor 
2024     *     has already been registered with this Interceptor's name
2025     */
2026    void add_server_request_interceptor (
2027      in ServerRequestInterceptor interceptor)
2028      raises (DuplicateName);
2029
2030    /**
2031     * Used to add an IOR Interceptor to the list of IOR Interceptors. 
2032     *
2033     * @param interceptor The IORInterceptor to be added.
2034     * @exception DuplicateName thrown if an IOR Interceptor has already 
2035     *     been registered with this Interceptor's name. 
2036     */
2037    void add_ior_interceptor (in IORInterceptor interceptor)
2038      raises (DuplicateName);
2039
2040    /**
2041     * Called to allocate a slot on <code>PortableInterceptor.Current</code>. 
2042     * <p>
2043     * Note that while slot id's can be allocated within an ORB initializer, 
2044     * the slots themselves cannot be initialized. 
2045     *
2046     * @return The index to the slot which has been allocated.
2047     * @exception BAD_INV_ORDER thrown, with a standard minor code of 14, if 
2048     *     <code>set_slot</code> or <code>get_slot</code> is called on the 
2049     *     <code>PICurrent</code> within an ORB initializer. 
2050     * @see Current
2051     */
2052    SlotId allocate_slot_id ();
2053
2054    /**
2055     * Registers a <code>PolicyFactory</code> for the given 
2056     * <code>PolicyType</code>. 
2057     * 
2058     * @param type The policy type that the given <code>PolicyFactory</code> 
2059     *     serves. 
2060     * @param policy_factory The factory for the given policy type.
2061     * @exception BAD_INV_ORDER thrown, with a standard minor code of 16, if 
2062     *     a <code>PolicyFactory</code> already exists for the given 
2063     *     <code>PolicyType</code>.
2064     */
2065    void register_policy_factory (
2066      in CORBA::PolicyType type,
2067      in PolicyFactory policy_factory);
2068  };
2069
2070  /**
2071   * Facilitates interceptor registration and ORB initialization.
2072   * <p>
2073   * Interceptors are intended to be a means by which ORB services gain 
2074   * access to ORB processing, effectively becoming part of the ORB. 
2075   * Since Interceptors are part of the ORB, when <code>ORB.init</code> 
2076   * returns an ORB, the Interceptors shall have been registered. 
2077   * Interceptors cannot be registered on an ORB after it has been 
2078   * returned by a call to <code>ORB.init</code>.
2079   * <p>
2080   * An Interceptor is registered by registering an associated 
2081   * <code>ORBInitializer</code> object which implements the 
2082   * <code>ORBInitializer</code> interface. When an ORB is initializing, 
2083   * it shall call each registered <code>ORBInitializer</code>, passing it 
2084   * an <code>ORBInitInfo</code> object which is used to register its 
2085   * Interceptor.
2086   * <p>
2087   * <b>Registering ORB Initializers in Java</b>
2088   * <p>
2089   * ORBInitializers are registered via Java ORB properties.
2090   * <p>
2091   * The property names are of the form: 
2092   *   <blockquote><code>
2093   *     org.omg.PortableInterceptor.ORBInitializerClass.&lt;Service&gt;
2094   *   </code></blockquote>
2095   * where <code>&lt;Service&gt;</code> is the string name of a class 
2096   * which implements 
2097   *   <blockquote><code>
2098   *     org.omg.PortableInterceptor.ORBInitializer
2099   *   </code></blockquote>
2100   * To avoid name collisions, the reverse DNS name convention should be 
2101   * used. For example, if company X has three initializers, it could define 
2102   * the following properties: 
2103   * <ul>
2104   *   <li><code>
2105   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init1
2106   *   </code></li>
2107   *   <li><code>
2108   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init2
2109   *   </code></li>
2110   *   <li><code>
2111   *     org.omg.PortableInterceptor.ORBInitializerClass.com.x.Init3
2112   *   </code></li>
2113   * </ul>
2114   * During ORB.init, these ORB properties which begin with 
2115   * <code>org.omg.PortableInterceptor.ORBInitializerClass</code> shall be 
2116   * collected, the <code>&lt;Service&gt;</code> portion of each property 
2117   * shall be extracted, an object shall be instantiated with the 
2118   * <code>&lt;Service&gt;</code> string as its class name, and the 
2119   * <code>pre_init</code> and <code>post_init</code> methods shall be 
2120   * called on that object. If there are any exceptions, the ORB shall 
2121   * ignore them and proceed. 
2122   * <p>
2123   * <b><i>Example</i></b>
2124   * <p>
2125   * A client-side logging service written by company X, for example, may 
2126   * have the following ORBInitializer implementation: 
2127   * <pre><code>
2128   * package com.x.logging;
2129   * 
2130   * import org.omg.PortableInterceptor.Interceptor; 
2131   * import org.omg.PortableInterceptor.ORBInitializer; 
2132   * import org.omg.PortableInterceptor.ORBInitInfo; 
2133   * 
2134   * public class LoggingService implements ORBInitializer { 
2135   *     void pre_init( ORBInitInfo info ) { 
2136   *         // Instantiate the Logging Service s Interceptor. 
2137   *         Interceptor interceptor = new LoggingInterceptor(); 
2138   *
2139   *         // Register the Logging Service s Interceptor. 
2140   *         info.add_client_request_interceptor( interceptor ); 
2141   *     } 
2142   * 
2143   *     void post_init( ORBInitInfo info ) { 
2144   *         // This service does not need two init points. 
2145   *     } 
2146   * } 
2147   * </code></pre>
2148   * To run a program called <code>MyApp</code> using this logging 
2149   * service, the user could type: 
2150   *   <blockquote><code>
2151   *     java 
2152   *-Dorg.omg.PortableInterceptor.ORBInitializerClass.com.x.Logging.LoggingService 
2153   *     MyApp
2154   *   </code></blockquote>
2155   * <p>
2156   * <b>Notes about Registering Interceptors</b>
2157   * <p>
2158   * Request Interceptors are registered on a per-ORB basis. 
2159   * <p>
2160   * To achieve virtual per-object Interceptors, query the policies on the 
2161   * target from within the interception points to determine whether they 
2162   * should do any work. 
2163   * <p>
2164   * To achieve virtual per-POA Interceptors, instantiate each POA with a 
2165   * different ORB. While Interceptors may be ordered administratively, 
2166   * there is no concept of order with respect to the registration of 
2167   * Interceptors. Request Interceptors are concerned with service contexts. 
2168   * Service contexts have no order, so there is no purpose for request 
2169   * Interceptors to have an order. IOR Interceptors are concerned with 
2170   * tagged components. Tagged components also have no order, so there 
2171   * is no purpose for IOR Interceptors to have an order. 
2172   * <p>
2173   * Registration code should avoid using the ORB (i.e., calling 
2174   * <code>ORB.init</code> with the provided <code>orb_id</code>). Since 
2175   * registration occurs during ORB initialization, results of invocations 
2176   * on this ORB while it is in this state are undefined. 
2177   * 
2178   * @see ORBInitInfo
2179   */
2180  local interface ORBInitializer {
2181
2182    /** 
2183     * Called during ORB initialization.  If it is expected that initial 
2184     * services registered by an interceptor will be used by other 
2185     * interceptors, then those initial services shall be registered at 
2186     * this point via calls to 
2187     * <code>ORBInitInfo.register_initial_reference</code>. 
2188     * 
2189     * @param info provides initialization attributes and operations by 
2190     *     which Interceptors can be registered.
2191     */
2192    void pre_init (in ORBInitInfo info);
2193
2194    /**
2195     * Called during ORB initialization. If a service must resolve initial 
2196     * references as part of its initialization, it can assume that all 
2197     * initial references will be available at this point. 
2198     * <p>
2199     * Calling the <code>post_init</code> operations is not the final 
2200     * task of ORB initialization. The final task, following the 
2201     * <code>post_init</code> calls, is attaching the lists of registered 
2202     * interceptors to the ORB. Therefore, the ORB does not contain the 
2203     * interceptors during calls to <code>post_init</code>. If an 
2204     * ORB-mediated call is made from within <code>post_init</code>, no 
2205     * request interceptors will be invoked on that call. 
2206     * Likewise, if an operation is performed which causes an IOR to be 
2207     * created, no IOR interceptors will be invoked. 
2208     *
2209     * @param info provides initialization attributes and 
2210     *     operations by which Interceptors can be registered.
2211     */
2212    void post_init (in ORBInitInfo info);
2213  };
2214};
2215