Apache Qpid - AMQP Messaging for Java JMS, C++, Python, Ruby, and .NET | Apache Qpid Documentation |
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