| #ifndef DOMStringPool_HEADER_GUARD_ |
| #define DOMStringPool_HEADER_GUARD_ |
| |
| /* |
| * 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. |
| */ |
| |
| /* |
| * $Id: DOMStringPool.hpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| // |
| // This file is part of the internal implementation of the C++ XML DOM. |
| // It should NOT be included or used directly by application programs. |
| // |
| // Applications should include the file <xercesc/dom/DOM.hpp> for the entire |
| // DOM API, or xercesc/dom/DOM*.hpp for individual DOM classes, where the class |
| // name is substituded for the *. |
| // |
| |
| #include <xercesc/util/XercesDefs.hpp> |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| |
| struct DOMStringPoolEntry; |
| class DOMDocumentImpl; |
| |
| // |
| // DOMStringPool is a hash table of XMLCh* Strings. |
| // Each DOM Document maintains a DOMStringPool containing a XMLCh* String |
| // for each Element tag name and Attribute Name that has been added |
| // to the document. When creating additional elements or attributes, |
| // if the name has been seen before, the already existing string |
| // will be reused. |
| // |
| class DOMStringPool |
| { |
| public: |
| DOMStringPool(int hashTableSize, DOMDocumentImpl *doc); |
| ~DOMStringPool(); |
| |
| const XMLCh *getPooledString(const XMLCh *in); |
| |
| |
| private: |
| DOMStringPool(const DOMStringPool &other); // Copy constructor and assignment |
| DOMStringPool& operator = (const DOMStringPool &other); // of DOMStringPool are not supported. |
| |
| |
| DOMDocumentImpl *fDoc; |
| DOMStringPoolEntry **fHashTable; |
| int fHashTableSize; |
| |
| }; |
| |
| |
| // |
| // DOMBuffer is a lightweight text buffer |
| // The buffer is not nul terminated until some asks to see the raw buffer |
| // contents. This also avoids overhead during append operations. |
| class DOMBuffer |
| { |
| public : |
| // ----------------------------------------------------------------------- |
| // Constructors and Destructor |
| // ----------------------------------------------------------------------- |
| DOMBuffer(DOMDocumentImpl *doc, int capacity = 31); |
| |
| DOMBuffer(DOMDocumentImpl *doc, const XMLCh* string); |
| |
| ~DOMBuffer() |
| { |
| } |
| |
| // ----------------------------------------------------------------------- |
| // Buffer Management |
| // ----------------------------------------------------------------------- |
| void append |
| ( |
| const XMLCh* const chars |
| , const unsigned int count = 0 |
| ); |
| |
| const XMLCh* getRawBuffer() const |
| { |
| fBuffer[fIndex] = 0; |
| return fBuffer; |
| } |
| |
| void reset() |
| { |
| fIndex = 0; |
| fBuffer[0] = 0; |
| } |
| |
| void set |
| ( |
| const XMLCh* const chars |
| , const unsigned int count = 0 |
| ); |
| |
| void chop |
| ( |
| const unsigned int count |
| ) |
| { |
| fBuffer[count] = 0; |
| fIndex = count; |
| } |
| |
| |
| // ----------------------------------------------------------------------- |
| // Getters |
| // ----------------------------------------------------------------------- |
| unsigned int getLen() const |
| { |
| return fIndex; |
| } |
| |
| // ----------------------------------------------------------------------- |
| // Private helpers |
| // ----------------------------------------------------------------------- |
| void expandCapacity(const unsigned int extraNeeded); |
| |
| |
| private : |
| // ----------------------------------------------------------------------- |
| // Private data members |
| // |
| // fBuffer |
| // The pointer to the buffer data. Its grown as needed. Its always |
| // one larger than fCapacity, to leave room for the null terminator. |
| // |
| // fIndex |
| // The current index into the buffer, as characters are appended |
| // to it. If its zero, then the buffer is empty. |
| // |
| // fCapacity |
| // The current capacity of the buffer. Its actually always one |
| // larger, to leave room for the null terminator. |
| // |
| // fDoc |
| // For allocating memory |
| // ----------------------------------------------------------------------- |
| XMLCh* fBuffer; |
| unsigned int fIndex; |
| unsigned int fCapacity; |
| DOMDocumentImpl* fDoc; |
| |
| // ----------------------------------------------------------------------- |
| // Unimplemented constructors and operators |
| // ----------------------------------------------------------------------- |
| DOMBuffer(const DOMBuffer &); |
| DOMBuffer & operator = (const DOMBuffer &); |
| }; |
| |
| XERCES_CPP_NAMESPACE_END |
| |
| #endif |