00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one 00003 * or more contributor license agreements. See the NOTICE file 00004 * distributed with this work for additional information 00005 * regarding copyright ownership. The ASF licenses this file 00006 * to you under the Apache License, Version 2.0 (the "License"); 00007 * you may not use this file except in compliance with the License. 00008 * You may obtain a copy of the License at 00009 * 00010 * http://www.apache.org/licenses/LICENSE-2.0 00011 * 00012 * Unless required by applicable law or agreed to in writing, software 00013 * distributed under the License is distributed on an "AS IS" BASIS, 00014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00015 * See the License for the specific language governing permissions and 00016 * limitations under the License. 00017 */ 00018 00019 #if !defined(XNODESETNODEPROXYALLOCATOR_INCLUDE_GUARD_12455133) 00020 #define XNODESETNODEPROXYALLOCATOR_INCLUDE_GUARD_12455133 00021 00022 00023 00024 // Base include file. Must be first. 00025 #include <xalanc/XPath/XPathDefinitions.hpp> 00026 00027 00028 00029 #include <xalanc/XPath/XNodeSetNodeProxy.hpp> 00030 00031 00032 00033 #include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp> 00034 00035 00036 00037 XALAN_CPP_NAMESPACE_BEGIN 00038 00039 00040 00041 class XALAN_XPATH_EXPORT XNodeSetNodeProxyAllocator 00042 { 00043 public: 00044 00045 typedef XNodeSetNodeProxy nodeset_type; 00046 00047 typedef ReusableArenaAllocator<nodeset_type> ArenaAllocatorType; 00048 typedef ArenaAllocatorType::size_type size_type; 00049 00050 /** 00051 * Construct an instance that will allocate blocks of the specified size. 00052 * 00053 * @param theBlockSize The block size. 00054 */ 00055 XNodeSetNodeProxyAllocator(MemoryManager& theManager, size_type theBlockCount); 00056 00057 ~XNodeSetNodeProxyAllocator(); 00058 00059 /** 00060 * Create an object using the allocator. 00061 * 00062 * @param value source node 00063 * 00064 * @return pointer to instance 00065 */ 00066 nodeset_type* 00067 create(XalanNode* value); 00068 00069 /** 00070 * Clone an XNodeSet object. 00071 * 00072 * @param value source instance 00073 * 00074 * @return pointer to a new instance 00075 */ 00076 nodeset_type* 00077 clone(const XNodeSetNodeProxy& value); 00078 00079 /** 00080 * Delete an XNodeSet object from allocator. 00081 */ 00082 bool 00083 destroy(nodeset_type* theNodeSet); 00084 00085 /** 00086 * Determine if an object is owned by the allocator... 00087 */ 00088 bool 00089 ownsObject(const nodeset_type* theObject) 00090 { 00091 return m_allocator.ownsObject(theObject); 00092 } 00093 00094 /** 00095 * Delete all XNodeSet objects from allocator. 00096 */ 00097 void 00098 reset(); 00099 00100 /** 00101 * Get size of an ArenaBlock, that is, the number 00102 * of objects in each block. 00103 * 00104 * @return The size of the block 00105 */ 00106 size_type 00107 getBlockCount() const 00108 { 00109 return m_allocator.getBlockCount(); 00110 } 00111 00112 /** 00113 * Get the number of ArenaBlocks currently allocated. 00114 * 00115 * @return The number of blocks. 00116 */ 00117 size_type 00118 getBlockSize() const 00119 { 00120 return m_allocator.getBlockSize(); 00121 } 00122 00123 00124 private: 00125 00126 // Not implemented... 00127 XNodeSetNodeProxyAllocator(const XNodeSetNodeProxyAllocator&); 00128 00129 XNodeSetNodeProxyAllocator& 00130 operator=(const XNodeSetNodeProxyAllocator&); 00131 00132 // Data members... 00133 ArenaAllocatorType m_allocator; 00134 }; 00135 00136 00137 00138 XALAN_CPP_NAMESPACE_END 00139 00140 00141 00142 #endif // XNODESETNODEPROXYALLOCATOR_INCLUDE_GUARD_12455133
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