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/thirdparty/breakpad/third_party/protobuf/protobuf/java/src/main/java/com/google/protobuf/RpcChannel.java

http://github.com/tomahawk-player/tomahawk
Java | 71 lines | 8 code | 2 blank | 61 comment | 0 complexity | 80a41269db8be89ce8001b5fab2d31ed MD5 | raw file
 1// Protocol Buffers - Google's data interchange format
 2// Copyright 2008 Google Inc.  All rights reserved.
 3// http://code.google.com/p/protobuf/
 4//
 5// Redistribution and use in source and binary forms, with or without
 6// modification, are permitted provided that the following conditions are
 7// met:
 8//
 9//     * Redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer.
11//     * Redistributions in binary form must reproduce the above
12// copyright notice, this list of conditions and the following disclaimer
13// in the documentation and/or other materials provided with the
14// distribution.
15//     * Neither the name of Google Inc. nor the names of its
16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31package com.google.protobuf;
32
33/**
34 * <p>Abstract interface for an RPC channel.  An {@code RpcChannel} represents a
35 * communication line to a {@link Service} which can be used to call that
36 * {@link Service}'s methods.  The {@link Service} may be running on another
37 * machine.  Normally, you should not call an {@code RpcChannel} directly, but
38 * instead construct a stub {@link Service} wrapping it.  Example:
39 *
40 * <pre>
41 *   RpcChannel channel = rpcImpl.newChannel("remotehost.example.com:1234");
42 *   RpcController controller = rpcImpl.newController();
43 *   MyService service = MyService.newStub(channel);
44 *   service.myMethod(controller, request, callback);
45 * </pre>
46 *
47 * <p>Starting with version 2.3.0, RPC implementations should not try to build
48 * on this, but should instead provide code generator plugins which generate
49 * code specific to the particular RPC implementation.  This way the generated
50 * code can be more appropriate for the implementation in use and can avoid
51 * unnecessary layers of indirection.
52 *
53 * @author kenton@google.com Kenton Varda
54 */
55public interface RpcChannel {
56  /**
57   * Call the given method of the remote service.  This method is similar to
58   * {@code Service.callMethod()} with one important difference:  the caller
59   * decides the types of the {@code Message} objects, not the callee.  The
60   * request may be of any type as long as
61   * {@code request.getDescriptor() == method.getInputType()}.
62   * The response passed to the callback will be of the same type as
63   * {@code responsePrototype} (which must have
64   * {@code getDescriptor() == method.getOutputType()}).
65   */
66  void callMethod(Descriptors.MethodDescriptor method,
67                  RpcController controller,
68                  Message request,
69                  Message responsePrototype,
70                  RpcCallback<Message> done);
71}