author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 07 Jan 2010 12:52:45 +0200 | |
changeset 1 | c42dffbd5b4f |
parent 0 | ba25891c3a9e |
child 2 | 661f3784fe57 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/* |
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* $Id: RefHashTableOf.hpp 568078 2007-08-21 11:43:25Z amassari $ |
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*/ |
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#if !defined(REFHASHTABLEOF_HPP) |
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#define REFHASHTABLEOF_HPP |
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#include <xercesc/util/HashBase.hpp> |
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#include <xercesc/util/IllegalArgumentException.hpp> |
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#include <xercesc/util/NoSuchElementException.hpp> |
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#include <xercesc/util/RuntimeException.hpp> |
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#include <xercesc/util/XMLString.hpp> |
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#include <xercesc/util/HashXMLCh.hpp> |
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#include <xercesc/util/PlatformUtils.hpp> |
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#include <xercesc/framework/MemoryManager.hpp> |
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XERCES_CPP_NAMESPACE_BEGIN |
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// |
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// Forward declare the enumerator so he can be our friend. Can you say |
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// friend? Sure... |
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// |
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template <class TVal> class RefHashTableOfEnumerator; |
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template <class TVal> struct RefHashTableBucketElem; |
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// |
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// This should really be a nested class, but some of the compilers we |
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// have to support cannot deal with that! |
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// |
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template <class TVal> struct RefHashTableBucketElem |
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{ |
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RefHashTableBucketElem(void* key, TVal* const value, RefHashTableBucketElem<TVal>* next) |
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: fData(value), fNext(next), fKey(key) |
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{ |
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} |
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RefHashTableBucketElem(){}; |
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~RefHashTableBucketElem(){}; |
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TVal* fData; |
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RefHashTableBucketElem<TVal>* fNext; |
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void* fKey; |
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private: |
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// ----------------------------------------------------------------------- |
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// Unimplemented constructors and operators |
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// ----------------------------------------------------------------------- |
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RefHashTableBucketElem(const RefHashTableBucketElem<TVal>&); |
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RefHashTableBucketElem<TVal>& operator=(const RefHashTableBucketElem<TVal>&); |
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}; |
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template <class TVal> class RefHashTableOf : public XMemory |
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{ |
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public: |
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// ----------------------------------------------------------------------- |
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// Constructors and Destructor |
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// ----------------------------------------------------------------------- |
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// backwards compatability - default hasher is HashXMLCh |
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RefHashTableOf |
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( |
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const unsigned int modulus |
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
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); |
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// backwards compatability - default hasher is HashXMLCh |
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RefHashTableOf |
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( |
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const unsigned int modulus |
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, const bool adoptElems |
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
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); |
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// if a hash function is passed in, it will be deleted when the hashtable is deleted. |
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// use a new instance of the hasher class for each hashtable, otherwise one hashtable |
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// may delete the hasher of a different hashtable if both use the same hasher. |
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RefHashTableOf |
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( |
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const unsigned int modulus |
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, const bool adoptElems |
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, HashBase* hashBase |
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager |
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); |
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~RefHashTableOf(); |
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|
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|
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// ----------------------------------------------------------------------- |
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// Element management |
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// ----------------------------------------------------------------------- |
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bool isEmpty() const; |
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bool containsKey(const void* const key) const; |
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void removeKey(const void* const key); |
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void removeAll(); |
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void cleanup(); |
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void reinitialize(HashBase* hashBase); |
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void transferElement(const void* const key1, void* key2); |
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TVal* orphanKey(const void* const key); |
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|
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// ----------------------------------------------------------------------- |
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// Getters |
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// ----------------------------------------------------------------------- |
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TVal* get(const void* const key); |
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const TVal* get(const void* const key) const; |
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MemoryManager* getMemoryManager() const; |
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unsigned int getHashModulus() const; |
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unsigned int getCount() const; |
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|
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// ----------------------------------------------------------------------- |
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// Setters |
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// ----------------------------------------------------------------------- |
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void setAdoptElements(const bool aValue); |
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|
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|
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// ----------------------------------------------------------------------- |
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// Putters |
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// ----------------------------------------------------------------------- |
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void put(void* key, TVal* const valueToAdopt); |
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|
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private : |
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// ----------------------------------------------------------------------- |
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// Declare our friends |
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// ----------------------------------------------------------------------- |
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friend class RefHashTableOfEnumerator<TVal>; |
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|
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private: |
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// ----------------------------------------------------------------------- |
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// Unimplemented constructors and operators |
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// ----------------------------------------------------------------------- |
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RefHashTableOf(const RefHashTableOf<TVal>&); |
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RefHashTableOf<TVal>& operator=(const RefHashTableOf<TVal>&); |
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|
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// ----------------------------------------------------------------------- |
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// Private methods |
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// ----------------------------------------------------------------------- |
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RefHashTableBucketElem<TVal>* findBucketElem(const void* const key, unsigned int& hashVal); |
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const RefHashTableBucketElem<TVal>* findBucketElem(const void* const key, unsigned int& hashVal) const; |
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void initialize(const unsigned int modulus); |
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void rehash(); |
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|
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|
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// ----------------------------------------------------------------------- |
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// Data members |
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// |
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// fAdoptedElems |
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// Indicates whether the values added are adopted or just referenced. |
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// If adopted, then they are deleted when they are removed from the |
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// hash table. |
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// |
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// fBucketList |
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// This is the array that contains the heads of all of the list |
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// buckets, one for each possible hash value. |
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// |
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// fHashModulus |
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// The modulus used for this hash table, to hash the keys. This is |
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// also the number of elements in the bucket list. |
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// |
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// fHash |
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// The hasher for the key data type. |
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// ----------------------------------------------------------------------- |
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MemoryManager* fMemoryManager; |
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bool fAdoptedElems; |
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RefHashTableBucketElem<TVal>** fBucketList; |
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unsigned int fHashModulus; |
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unsigned int fInitialModulus; |
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unsigned int fCount; |
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HashBase* fHash; |
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}; |
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|
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|
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|
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// |
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// An enumerator for a value array. It derives from the basic enumerator |
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// class, so that value vectors can be generically enumerated. |
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// |
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template <class TVal> class RefHashTableOfEnumerator : public XMLEnumerator<TVal>, public XMemory |
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{ |
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public : |
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// ----------------------------------------------------------------------- |
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// Constructors and Destructor |
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// ----------------------------------------------------------------------- |
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RefHashTableOfEnumerator(RefHashTableOf<TVal>* const toEnum |
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, const bool adopt = false |
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, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager); |
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virtual ~RefHashTableOfEnumerator(); |
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RefHashTableOfEnumerator(const RefHashTableOfEnumerator<TVal>&); |
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// ----------------------------------------------------------------------- |
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// Enum interface |
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// ----------------------------------------------------------------------- |
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bool hasMoreElements() const; |
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TVal& nextElement(); |
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void Reset(); |
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// ----------------------------------------------------------------------- |
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// New interface specific for key used in RefHashable |
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// ----------------------------------------------------------------------- |
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void* nextElementKey(); |
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private : |
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// ----------------------------------------------------------------------- |
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// Unimplemented constructors and operators |
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// ----------------------------------------------------------------------- |
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RefHashTableOfEnumerator<TVal>& operator=(const RefHashTableOfEnumerator<TVal>&); |
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// ----------------------------------------------------------------------- |
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// Private methods |
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// ----------------------------------------------------------------------- |
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void findNext(); |
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// ----------------------------------------------------------------------- |
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// Data Members |
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// |
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// fAdopted |
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// Indicates whether we have adopted the passed vector. If so then |
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// we delete the vector when we are destroyed. |
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// |
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// fCurElem |
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// This is the current bucket bucket element that we are on. |
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// |
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// fCurHash |
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// The is the current hash buck that we are working on. Once we hit |
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// the end of the bucket that fCurElem is in, then we have to start |
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// working this one up to the next non-empty bucket. |
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// |
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// fToEnum |
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// The value array being enumerated. |
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// ----------------------------------------------------------------------- |
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bool fAdopted; |
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RefHashTableBucketElem<TVal>* fCurElem; |
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unsigned int fCurHash; |
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RefHashTableOf<TVal>* fToEnum; |
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MemoryManager* const fMemoryManager; |
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}; |
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XERCES_CPP_NAMESPACE_END |
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#if !defined(XERCES_TMPLSINC) |
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#include <xercesc/util/RefHashTableOf.c> |
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#endif |
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#endif |
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