author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:06:48 +0200 | |
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/* |
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* Copyright (c) 2007 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: This class is a handle to server-side landmark name index |
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* |
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* |
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*/ |
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#ifndef RPOSLMLOCALNAMEINDEX_H |
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#define RPOSLMLOCALNAMEINDEX_H |
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#include <e32base.h> |
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#include <EPos_Landmarks.h> |
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class CPosLandmark; |
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class RPosLmLocalSubsession; |
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class RPosLmLocalAccessSubsession; |
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/** |
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* This class is a handle to server-side landmark name index |
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* |
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* @lib eposlmlocalaccess.lib |
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* @since S60 3.2 |
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*/ |
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class RPosLmLocalNameIndex |
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{ |
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public: |
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class CIndexItem : public CBase |
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{ |
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public: |
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CIndexItem(); |
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~CIndexItem(); |
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static CIndexItem* NewL( TPosLmItemId aId, const TDesC& aName ); |
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static CIndexItem* NewL( RReadStream& aStream ); |
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inline TPosLmItemId Id() const; |
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inline TPtrC Name() const; |
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private: |
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TPosLmItemId iId; |
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HBufC* iName; |
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}; |
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public: |
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/** |
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* C++ default constructor. |
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* @param[in] aSession Parent session to server. |
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*/ |
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RPosLmLocalNameIndex( RPosLmLocalAccessSubsession& aSession ); |
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/** |
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* Creates a local access subsession with the Landmarks Server. |
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* |
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* @return @p KErrNone if successful, otherwise one of the system-wide |
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* error codes. |
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*/ |
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TInt Open(); |
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/** |
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* Closes the subsession. |
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*/ |
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void Close(); |
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/** Returns amount of items in the index */ |
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IMPORT_C TInt Count() const; |
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/** Returns amount of items in the index */ |
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IMPORT_C TInt Status() const; |
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/** Reads part of sorted landmark ids from server's index |
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* @param[out] aIdArray Target buffer for landmarks IDs |
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* @param[in] aFirst index of first ID to read |
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* @param[in] aCount amount of IDs to read (size of aIdArray buffer) |
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* @param[out] aRemainder On completion contains number of IDs left |
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* in the index |
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* @return If negative - error code, otherwise - number of actual |
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* IDs read to aIdArray. 0 means that no more IDs available */ |
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IMPORT_C TInt ReadSortedIds( |
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TPosLmItemId* aIdArray, |
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TInt aFirst, |
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TInt aCount, |
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TInt& aRemainder ); |
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/** Reads part of sorted landmarks from server's index. |
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* Upon completion target array aArray will contain |
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* partial landmark data: ID and Name. |
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* @param[in] aFirst index of first landmark to read |
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* @param[in] aCount amount of landmarks to read |
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* @param[out] aArray Target buffer for landmarks |
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* @param[out] aRemainder On completion contains number of landmarks left |
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* in the index */ |
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IMPORT_C void ReadSortedLandmarksL( |
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TInt aFirst, |
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TInt aCount, |
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RPointerArray<CIndexItem>& aArray, |
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TInt& aRemainder ); |
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/** Starts transaction on server-side landmark name index. |
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* Only used for modifications */ |
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TInt BeginTransaction(); |
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/** Commits transaction on server-side landmark name index */ |
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TInt CommitTransaction(); |
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/** Cancels transaction on server-side landmark name index */ |
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TInt RollbackTransaction(); |
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/** Informs server about newly added landmark |
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* @param aLandmark Landmark data */ |
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void AddL( const CPosLandmark& aLandmark ); |
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|
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/** Informs server about newly added landmarks |
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* @param aLandmarks List of landmarks */ |
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void AddL( RPointerArray<CPosLandmark>& aLandmarks ); |
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/** Informs server about modified landmark |
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* @param aLandmark Landmark data */ |
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void UpdateL( const CPosLandmark& aLandmark ); |
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|
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/** Informs server about modified landmarks |
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* @param aLandmarks List of landmarks */ |
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void UpdateL( RPointerArray<CPosLandmark>& aLandmarks ); |
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|
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/** Informs server about removed landmark |
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* @param aLmid ID of the landmark */ |
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void RemoveL( TPosLmItemId aLmid ); |
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|
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/** Informs server about removed landmarks |
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* @param aLmids List of landmark IDs */ |
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void RemoveL( RArray<TPosLmItemId>& aLmids ); |
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|
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protected: |
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/** Packs landmark IDs and Names and sends to server |
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* @param aFunction IPC function, which is to handle the message |
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* @param aLandmarks List of landmarks */ |
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void SendLandmarkDataL( |
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TInt aFunction, |
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RPointerArray<CPosLandmark>& aLandmarks ); |
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|
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/** Returns size of basic landmark data in the array |
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* size of total count + size of ID, name and name length per |
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* each landmark */ |
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TInt CalculateLandmarkBasicDataSize( |
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RPointerArray<CPosLandmark>& aLandmarks ); |
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|
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private: |
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// By default, prohibit copy constructor |
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RPosLmLocalNameIndex( const RPosLmLocalNameIndex& ); |
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// Prohibit assigment operator |
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RPosLmLocalNameIndex& operator=( const RPosLmLocalNameIndex& ); |
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private: // Data |
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RPosLmLocalAccessSubsession& iSession; |
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HBufC8* iBuffer; |
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}; |
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#include "epos_rposlmlocalnameindex.inl" |
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#endif // RPOSLMLOCALNAMEINDEX_H |
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