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Diffstat (limited to 'cpp/include/qpid/client/Handle.h')
-rw-r--r-- | cpp/include/qpid/client/Handle.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/cpp/include/qpid/client/Handle.h b/cpp/include/qpid/client/Handle.h deleted file mode 100644 index b8315481a9..0000000000 --- a/cpp/include/qpid/client/Handle.h +++ /dev/null @@ -1,71 +0,0 @@ -#ifndef QPID_CLIENT_HANDLE_H -#define QPID_CLIENT_HANDLE_H - -/* - * - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you under the Apache License, Version 2.0 (the - * "License"); you may not use this file except in compliance - * with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, - * software distributed under the License is distributed on an - * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY - * KIND, either express or implied. See the License for the - * specific language governing permissions and limitations - * under the License. - * - */ - -#include "qpid/client/ClientImportExport.h" - -namespace qpid { -namespace client { - -template <class> class PrivateImplRef; - -/** - * A handle is like a pointer: refers to an underlying implementation object. - * Copying the handle does not copy the object. - * - * Handles can be null, like a 0 pointer. Use isValid(), isNull() or the - * conversion to bool to test for a null handle. - */ -template <class T> class Handle { - public: - - /**@return true if handle is valid, i.e. not null. */ - QPID_CLIENT_INLINE_EXTERN bool isValid() const { return impl; } - - /**@return true if handle is null. It is an error to call any function on a null handle. */ - QPID_CLIENT_INLINE_EXTERN bool isNull() const { return !impl; } - - /** Conversion to bool supports idiom if (handle) { handle->... } */ - QPID_CLIENT_INLINE_EXTERN operator bool() const { return impl; } - - /** Operator ! supports idiom if (!handle) { do_if_handle_is_null(); } */ - QPID_CLIENT_INLINE_EXTERN bool operator !() const { return !impl; } - - void swap(Handle<T>& h) { T* t = h.impl; h.impl = impl; impl = t; } - - protected: - typedef T Impl; - QPID_CLIENT_INLINE_EXTERN Handle() :impl() {} - - // Not implemented,subclasses must implement. - QPID_CLIENT_EXTERN Handle(const Handle&); - QPID_CLIENT_EXTERN Handle& operator=(const Handle&); - - Impl* impl; - - friend class PrivateImplRef<T>; // FIXME aconway 2009-04-30: Specify -}; - -}} // namespace qpid::client - -#endif /*!QPID_CLIENT_HANDLE_H*/ |