| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Fri, 12 Mar 2010 15:43:54 +0200 | |
| branch | RCL_3 |
| changeset 18 | bd874ee5e5e2 |
| parent 0 | 79c6a41cd166 |
| child 19 | 502e5d91ad42 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005,2006 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 "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: Flyweigth pattern implementation for dom strings. |
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* |
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*/ |
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#ifndef HSPS_DOM_STRING_POOL_H |
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#define HSPS_DOM_STRING_POOL_H |
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// INCLUDES |
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#include <e32base.h> |
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#include <s32strm.h> |
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#include "hspsdomstringpooloptimizer.h" |
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// CLASS DECLARATION |
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/** |
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* @ingroup group_hspsdom |
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* Class utilize flyweight pattern. Dom strings are stored once |
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* and referred with index. Class can be serialized. |
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* |
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* @lib xndomdocument.lib |
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* @since Series 60 3.1 |
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*/ |
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class ChspsDomStringPool : public CBase |
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{
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. |
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* |
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* @param aAllowDuplicates ETrue if duplicates are to be allowed. |
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* Supported for legacy reasons. |
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*/ |
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static ChspsDomStringPool* NewL( const TBool aAllowDuplicates = EFalse ); |
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/** |
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* Two-phased stream constructor. |
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* |
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* @param aStream Stream where string pool is internalized. |
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* @param aAllowDuplicates ETrue if duplicates are to be allowed. |
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* Supported for legacy reasons. |
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*/ |
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static ChspsDomStringPool* NewL( RReadStream& aStream, |
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const TBool aAllowDuplicates = EFalse ); |
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/** |
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* Destructor. |
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*/ |
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virtual ~ChspsDomStringPool(); |
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public: |
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/** |
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* Make a copy from original StringPool. |
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* @since Series 60 3.1 |
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* @return Pointer to a string pool. Ownership is transferred to a caller. |
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*/ |
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ChspsDomStringPool* CloneL(); |
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public: //Adding |
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/** |
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* Set dom string into string pool. |
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* |
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* @param aString String to add to string pool |
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* @return Index (reference) to string pool |
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*/ |
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IMPORT_C TInt AddStringL( const TDesC8& aString ); |
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/** |
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* Set dom string into string pool. |
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* |
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* @param aString String to add to string pool. OWNERSHIP TRANSFERRED! |
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* @return Index (reference) to string pool |
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*/ |
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TInt AddStringL( HBufC8* aString ); |
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/** |
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* Add all string from another string pool. |
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* |
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* @param aStringPool Source string pool. |
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*/ |
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void AddAllL( ChspsDomStringPool& aStringPool ); |
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public: //Accessing |
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/** |
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* Get reference to string. |
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* |
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* @param aMap Map object which has index to name string |
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* @return Pointer to the name |
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*/ |
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const TDesC8& String( const TInt aStringRef ); |
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/** |
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* Get object's data size in bytes. |
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* |
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* @return Data size in bytes |
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*/ |
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TInt Size() const; |
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/** |
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* Get amount of strings. |
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*/ |
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TInt Count() const; |
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/** |
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* Externalize object. |
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* |
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* @param aStream Output stream |
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*/ |
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void ExternalizeL( RWriteStream& aStream ) const; |
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/** |
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* Internalize object. |
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* |
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* @param aStream Input stream |
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*/ |
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void InternalizeL( RReadStream& aStream ); |
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private: |
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/** |
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* C++ default constructor. |
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* |
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* @param aAllowDuplicates ETrue if duplicates are to be allowed. |
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* Supported for legacy reasons. |
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*/ |
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ChspsDomStringPool( const TBool aAllowDuplicates ); |
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/** |
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* By default Symbian 2nd phase constructor is private. |
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*/ |
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void ConstructL(); |
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/** |
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* Add string to string pool and to optimizer also. |
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* |
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* @param aNewString String to be added. OWNERSHIP TRANSFERRED. |
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* @param TInt Index to added string. |
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*/ |
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TInt DoAddStringL( HBufC8* aNewString ) ; |
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private: |
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//String pool |
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RPointerArray<HBufC8> iStringPool; |
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/** |
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* String pool optimizer. |
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*/ |
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ThspsDomStringPoolOptimizer iStringPoolOptimizer; |
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/** |
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* ETrue if string pool can contain duplicate entries. Must |
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* be supported for legacy reasons while loading xuikon odts. |
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*/ |
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TBool iAllowDuplicates; |
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}; |
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#endif // HSPS_DOM_STRING_POOL_H |
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// End of File |