proxy.h
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00001 /*
00002  * Copyright 2006-2008 The FLWOR Foundation.
00003  * 
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  * 
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #ifndef ZORBA_INTERNAL_PROXY_H
00018 #define ZORBA_INTERNAL_PROXY_H
00019 
00020 namespace zorba {
00021 namespace internal {
00022 namespace ztd {
00023 
00024 ///////////////////////////////////////////////////////////////////////////////
00025 
00026 /**
00027  * \internal
00028  * A %proxy<T> is-a \c T that also contains a T* -- a pointer to the original.
00029  */
00030 template<class OriginalType>
00031 class proxy : public OriginalType {
00032 public:
00033   proxy( OriginalType *p ) : original_( p ) { }
00034 
00035   OriginalType* original() const {
00036     return original_;
00037   }
00038 private:
00039   OriginalType *original_;
00040 };
00041 
00042 ///////////////////////////////////////////////////////////////////////////////
00043 
00044 } // namespace ztd
00045 } // namespace internal
00046 } // namespace zorba
00047 #endif  /* ZORBA_INTERNAL_PROXY_H */
00048 /* vim:set et sw=2 ts=2: */
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