Apache Qpid C++ API
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qpid/client/Future.h

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00001 /*
00002  *
00003  * Licensed to the Apache Software Foundation (ASF) under one
00004  * or more contributor license agreements.  See the NOTICE file
00005  * distributed with this work for additional information
00006  * regarding copyright ownership.  The ASF licenses this file
00007  * to you under the Apache License, Version 2.0 (the
00008  * "License"); you may not use this file except in compliance
00009  * with the License.  You may obtain a copy of the License at
00010  * 
00011  *   http://www.apache.org/licenses/LICENSE-2.0
00012  * 
00013  * Unless required by applicable law or agreed to in writing,
00014  * software distributed under the License is distributed on an
00015  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00016  * KIND, either express or implied.  See the License for the
00017  * specific language governing permissions and limitations
00018  * under the License.
00019  *
00020  */
00021 
00022 #ifndef _Future_
00023 #define _Future_
00024 
00025 #include <boost/bind.hpp>
00026 #include <boost/shared_ptr.hpp>
00027 #include "qpid/Exception.h"
00028 #include "qpid/framing/SequenceNumber.h"
00029 #include "qpid/framing/StructHelper.h"
00030 #include "FutureCompletion.h"
00031 #include "FutureResult.h"
00032 #include "SessionImpl.h"
00033 
00034 namespace qpid {
00035 namespace client {
00036 
00038 class Future : private framing::StructHelper
00039 {
00040     framing::SequenceNumber command;
00041     boost::shared_ptr<FutureResult> result;
00042     bool complete;
00043 
00044 public:
00045     Future() : complete(false) {}    
00046     Future(const framing::SequenceNumber& id) : command(id), complete(false) {}    
00047 
00048     template <class T> void decodeResult(T& value, SessionImpl& session) 
00049     {
00050         if (result) {
00051             decode(value, result->getResult(session));
00052         } else {
00053             throw Exception("Result not expected");
00054         }
00055     }
00056 
00057     void wait(SessionImpl& session);
00058     bool isComplete(SessionImpl& session);
00059     void setFutureResult(boost::shared_ptr<FutureResult> r);
00060 };
00061 
00062 }}
00063 
00064 #endif

Qpid C++ API Reference
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