Apache Qpid - AMQP Messaging for Java JMS, C++, Python, Ruby, and .NET Apache Qpid Documentation
qpid/client/TypedResult.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 _TypedResult_
00023 #define _TypedResult_
00024 
00025 #include "qpid/client/Completion.h"
00026 #include "qpid/framing/StructHelper.h"
00027 
00028 namespace qpid {
00029 namespace client {
00030 
00036 template <class T> class TypedResult : public Completion
00037 {
00038     T result;
00039     bool decoded;
00040 
00041 public:
00043     TypedResult(const Completion& c) : Completion(c), decoded(false) {}
00044 
00053     T& get() {
00054         if (!decoded) {
00055             framing::StructHelper helper;
00056             helper.decode(result, getResult());
00057             decoded = true;
00058         }
00059         return result;
00060     }
00061 };
00062 
00063 }}
00064 
00065 #endif

Qpid C++ API Reference
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