Fri, 10 Jul 2015 08:43:05 -0700
Merge
1 /*
2 * Copyright (c) 1998, 1999, 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 package org.omg.CORBA.portable;
27 /**
28 This interface provides a dispatching mechanism for an incoming call.
29 It is invoked by the ORB to dispatch a request to a servant.
30 */
32 public interface InvokeHandler {
33 /**
34 * Invoked by the ORB to dispatch a request to the servant.
35 *
36 * ORB passes the method name, an InputStream containing the
37 * marshalled arguments, and a ResponseHandler which the servant
38 * uses to construct a proper reply.
39 *
40 * Only CORBA SystemException may be thrown by this method.
41 *
42 * The method must return an OutputStream created by the
43 * ResponseHandler which contains the marshalled reply.
44 *
45 * A servant must not retain a reference to the ResponseHandler
46 * beyond the lifetime of a method invocation.
47 *
48 * Servant behaviour is defined as follows:
49 * <p>1. Determine correct method, and unmarshal parameters from
50 * InputStream.
51 * <p>2. Invoke method implementation.
52 * <p>3. If no user exception, create a normal reply using
53 * ResponseHandler.
54 * <p>4. If user exception occurred, create exception reply using
55 * ResponseHandler.
56 * <p>5. Marshal reply into OutputStream returned by
57 * ResponseHandler.
58 * <p>6. Return OutputStream to ORB.
59 * <p>
60 * @param method The method name.
61 * @param input The <code>InputStream</code> containing the marshalled arguments.
62 * @param handler The <code>ResponseHandler</code> which the servant uses
63 * to construct a proper reply
64 * @return The <code>OutputStream</code> created by the
65 * ResponseHandler which contains the marshalled reply
66 * @throws SystemException is thrown when invocation fails due to a CORBA system exception.
67 */
69 OutputStream _invoke(String method, InputStream input,
70 ResponseHandler handler)
71 throws org.omg.CORBA.SystemException;
72 }