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

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00001 #ifndef QPID_CLIENT_HANDLE_H
00002 #define QPID_CLIENT_HANDLE_H
00003 
00004 /*
00005  *
00006  * Licensed to the Apache Software Foundation (ASF) under one
00007  * or more contributor license agreements.  See the NOTICE file
00008  * distributed with this work for additional information
00009  * regarding copyright ownership.  The ASF licenses this file
00010  * to you under the Apache License, Version 2.0 (the
00011  * "License"); you may not use this file except in compliance
00012  * with the License.  You may obtain a copy of the License at
00013  * 
00014  *   http://www.apache.org/licenses/LICENSE-2.0
00015  * 
00016  * Unless required by applicable law or agreed to in writing,
00017  * software distributed under the License is distributed on an
00018  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00019  * KIND, either express or implied.  See the License for the
00020  * specific language governing permissions and limitations
00021  * under the License.
00022  *
00023  */
00024 
00025 namespace qpid {
00026 namespace client {
00027 
00028 template <class T> class HandlePrivate;
00029 
00035 template <class T> class Handle {
00036   public:
00037     ~Handle();
00038     Handle(const Handle&);
00039     Handle& operator=(const Handle&);
00040 
00042     bool isValid() const { return impl; }
00043 
00045     bool isNull() const { return !impl; }
00046 
00047     operator bool() const { return impl; }
00048     bool operator !() const { return impl; }
00049 
00050     void swap(Handle<T>&);
00051 
00052   protected:
00053     Handle(T* =0);
00054     T* impl;
00055 
00056   friend class HandlePrivate<T>;
00057 };
00058 
00059 }} // namespace qpid::client
00060 
00061 #endif  

Qpid C++ API Reference
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