--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/predictivesearch/PcsAlgorithm/Algorithm1/inc/CPcsCache.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,222 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Used to cache the contacts in memory
+*
+*/
+
+#ifndef __CPCS_CACHE_H__
+#define __CPCS_CACHE_H__
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <e32hashtab.h>
+
+#include "CPsData.h"
+#include "CPcsKeyMap.h"
+#include "CPcsPoolElement.h"
+#include "TCacheInfo.h"
+#include "CPcsDefs.h"
+
+// CLASS DECLARATION
+class CPcsCache : public CBase
+{
+
+	public:
+
+		/**
+		* Two phase construction
+		*/
+		static CPcsCache* NewL(TDesC& aURI, CPcsKeyMap& aKeyMap, TUint8 aUriId);
+
+		/**
+		* Virtual destructor
+		*/
+		virtual ~CPcsCache();
+
+		/**
+		* Returns the database URI this cache support
+		*/
+		TDesC& GetURI();
+
+		/**
+		* Get CPcsPoolElement for a key id
+		*/
+		void GetContactsForKeyL(TInt aKeyId, RPointerArray<CPcsPoolElement>& aData);
+
+		/**
+		* Get all cached content
+		*/
+		void GetAllContentsL(RPointerArray<CPsData>& aData);
+
+		/**
+		* Add a data element to the cache
+		*/	    
+		void AddToCacheL(CPsData& aData);
+
+		/**
+		* Removes a data element from the cache
+		*/
+		void RemoveFromCacheL(TInt aItemId);	    
+
+		/**
+		* Removes all data elements from the cache
+		*/
+		void RemoveAllFromCacheL();
+
+		/**
+		* Sets data fields to the cache
+		*/
+		void SetDataFields(RArray<TInt>& aDataFields);
+
+		/**
+		* Gets data fields from the cache
+		*/
+		void GetDataFields(RArray<TInt>& aDataFields);
+
+		/**
+		* Updates the caching status for this cache
+		*/
+		void UpdateCacheStatus(TInt aStatus);
+
+		/**
+		* Returns the cache status for this cache
+		*/
+		TInt GetCacheStatus();
+
+		/**
+		* Returns the UriId
+		*/
+		TUint8 GetUriId();
+
+		/**
+		* Returns the URI for this cache
+		*/
+		HBufC* GetUri();
+	    /**
+	    * Sets sort order for data fields
+	    */
+	    void SetSortOrder(RArray<TInt>& aSortOrder);
+	    
+	    /**
+	    * Gets sort order for data fields
+	    */
+	    void GetSortOrder(RArray<TInt>& aSortOrder);
+	    
+	    /**
+	    * Get the index order corresponding to the sort order
+	    */	
+		void GetIndexOrder(RArray<TInt>& aIndexOrder);
+		
+        /**
+         * Resort data according to the new sortorder
+         */
+        void ResortdataInPoolsL();
+
+	private:
+
+		/**
+		* Constructor
+		*/
+		CPcsCache();
+
+		/**
+		* Second phase constructor
+		*/
+		void ConstructL(TDesC& aURI, CPcsKeyMap& aKeyMap, TUint8 aUriId);
+
+		/**
+		* Utility function to add a contact to the pool
+		*/
+		void AddToPoolL(TInt& aInfo, CPsData& data);
+
+		/**
+		* Utility function 
+		*/
+		void SetPoolMap(TInt& aPoolMap, TInt aPoolId);
+
+		/**
+		* Utility function 
+		*/
+		TBool GetPoolMap(TInt& aPoolMap, TInt arrayIndex);
+
+        /**
+         * Utility function
+         */
+        void ComputeIndexOrder();
+	private:    
+
+
+		/*
+		* Array of key maps
+		*/
+		typedef RPointerArray<CPcsPoolElement> R_PTR_ARRAY;
+		RPointerArray<R_PTR_ARRAY> keyArr;     
+
+		/*
+		* Hashmaps to remember the location of a contact in the pools
+		*/
+		RHashMap<TInt, TInt> cacheInfo;			
+
+		/*
+		* Master pool of all contacts in this cache
+		*/
+		RPointerArray<CPsData> masterPool;	
+		
+	    /*
+	    * Master pool backup of all contacts in this cache when sortorder changed
+	    */
+	    RPointerArray<CPsData> masterPoolBackup;  
+
+		/*
+		* Not owned
+		*/
+		CPcsKeyMap* keyMap;		
+
+		/**
+		* Owned. Refer to the database URI this cache is for.
+		*/
+		HBufC* iURI;	
+
+		/**
+		* Internal URI id for this cache
+		*/
+		TInt8 iUriId;
+
+		/**
+		* Current status of this cache
+		*/
+		TInt iCacheStatus;
+
+		/**
+		* List of data fields (mapped to VPbk ids) supported by this cache
+		*/
+		RArray<TInt> 	iDataFields;
+		/**
+		* Sort order of data fields expected by the clients
+		*/
+		RArray<TInt>    iSortOrder;
+		
+		/**
+		* Order of indexes determined by correlating iDataFields and iSortOrder
+		* Each CPsData data element fields need to be compared in this order
+		* to get the client expected sort order for this cache.
+		*/
+		RArray<TInt>    iIndexOrder;
+		
+};
+
+
+#endif // __CPCS_CACHE_H__
+
+// End of file