LocalClientRequestDispatcher.java revision 608:7e06bf1dcb09 
1/*
2 * Copyright (c) 2002, 2003, 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
26package com.sun.corba.se.spi.protocol;
27
28import org.omg.CORBA.portable.ServantObject;
29
30/**
31 * @author Harold Carr
32 */
33
34public interface LocalClientRequestDispatcher
35{
36    public boolean useLocalInvocation(org.omg.CORBA.Object self);
37
38    public boolean is_local(org.omg.CORBA.Object self);
39
40    /**
41     * Returns a Java reference to the servant which should be used for this
42     * request. servant_preinvoke() is invoked by a local stub.
43     * If a ServantObject object is returned, then its servant field
44     * has been set to an object of the expected type (Note: the object may
45     * or may not be the actual servant instance). The local stub may cast
46     * the servant field to the expected type, and then invoke the operation
47     * directly.
48     *
49     * @param self The object reference which delegated to this delegate.
50     *
51     * @param operation a string containing the operation name.
52     * The operation name corresponds to the operation name as it would be
53     * encoded in a GIOP request.
54     *
55     * @param expectedType a Class object representing the expected type of the servant.
56     * The expected type is the Class object associated with the operations
57     * class of the stub's interface (e.g. A stub for an interface Foo,
58     * would pass the Class object for the FooOperations interface).
59     *
60     * @return a ServantObject object.
61     * The method may return a null value if it does not wish to support
62     * this optimization (e.g. due to security, transactions, etc).
63     * The method must return null if the servant is not of the expected type.
64     */
65    public ServantObject servant_preinvoke(org.omg.CORBA.Object self,
66                                           String operation,
67                                           Class expectedType);
68
69    public void servant_postinvoke(org.omg.CORBA.Object self,
70                                   ServantObject servant);
71}
72
73// End of file.
74