--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/predictivesearch/PcsAlgorithm/Algorithm2/inc/CPcsAlgorithm2MultiSearchHelper.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,200 @@
+/*
+* Copyright (c) 2006-2007 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:  Identifies a contact in cache pools
+*
+*/
+
+#ifndef C_PCS_ALGORITHM_2_MULTI_SEARCH_HELPER
+#define C_PCS_ALGORITHM_2_MULTI_SEARCH_HELPER
+
+// SYSTEM INCLUDES
+#include <e32cmn.h>
+#include <e32math.h>
+
+// USER INCLUDES
+#include "CPsData.h"
+#include "CPcsCache.h"
+#include "CPcsKeyMap.h"
+#include "CPsQuery.h"
+#include "CPcsAlgorithm2.h"
+#include "CPcsDebug.h"
+#include "CPcsKeyMap.h"
+#include "CPsQueryItem.h"
+#include "CPcsPoolElement.h"
+#include "CWords.h"
+#include "CPcsAlgorithm2FilterHelper.h"
+
+// FORWARD DECLARATION
+class CPcsAlgorithm2;
+class CPsData;
+class CPsQuery;
+class TMultiSearchMap;
+
+#define MAX_DATA_FIELDS 8
+
+// CLASS DECLARATION
+class CPcsAlgorithm2MultiSearchHelper : public CBase
+    {
+public:
+
+    /**
+     * Two phase construction
+     */
+    static CPcsAlgorithm2MultiSearchHelper* NewL(CPcsAlgorithm2* aAlgorithm);
+
+    /**
+     * Destructor
+     */
+    virtual ~CPcsAlgorithm2MultiSearchHelper();
+
+private:
+
+    /**
+     * Filter subset results for multi query mode. 
+     */
+    void FilterResultsMultiL(CPcsAlgorithm2FilterHelper* aAlgorithmFilterHelper,
+                             RPointerArray<CPcsPoolElement>& searchSet,
+                             RPointerArray<CPsQuery>& searchQuery, TUint8 aFilteredDataMatch,
+                             TBool isGroupSearch, RArray<TInt>& aContactsInGroup, 
+                             TInt keyboardMode);
+
+    /**
+     * Convert the search query to a string.
+     * If the mode is ITU-T, character is converted to numeric.
+     * If the mode is Qwerty, character is retained as is.
+     */
+    void ExtractQueryL(CPsQuery& aPsQuery, TDes& aOutput);
+
+    /**
+     * Convert the input search query to a string.
+     * Mode is referred in the CPsQuery.
+     * If the mode is ITU-T, character is converted to numeric.
+     * If the mode is Qwerty, character is retained as is.
+     */
+    void ExtractQueryL(TDesC& aInput, CPsQuery& aPsQuery, TDes& aOutput);
+    /**
+     * Converts the input data to the key board mode specified by the query.
+     * Mode is referred in the CPsQuery.
+     * If the mode is ITU-T, data is converted to numeric.
+     * If the mode is Qwerty, data is retained as is.
+     */
+    void ConvertdDataToKeyBoardModeL(CPsQuery* aQuery, TPtrC aInputData,
+                                     TBuf<KPsQueryMaxLen>& aOutputData);
+
+public:
+
+    /**
+     * Search Function for multi query
+     * Initials search feature
+     */
+    void SearchMultiL(const CPsSettings& aSettings, RPointerArray<CPsQuery>& aQuery, 
+                      TBool isGroupSearch, RArray<TInt>& aContactsInGroup,
+                      RPointerArray<CPsData>& searchResults,
+                      RPointerArray<CPsPattern>& searchSeqs, TInt keyboardMode);
+
+    /**
+     * Funtion to Search matching sequences for multi query
+     */
+    void SearchMatchSeqMultiL(RPointerArray<CPsQuery>& aPsQuery,
+                              TDesC& aData, RPointerArray<TDesC>& aMatchSet, 
+                              RArray<TPsMatchLocation>& aMatchLocation);
+
+private:
+
+    /**
+     * Constructs a bit pattern using the required/supported data fields
+     * For example, 6, 4 and 27 are supported fields <-- 00000111
+     *              6 and 4 are required fields      <-- 00000011
+     * Bit pattern returned is 00000011.
+     */
+    TUint8 FilterDataFieldsL(RArray<TInt>& aRequiredDataFields,
+                             RArray<TInt>& aSupportedDataFields);
+    /**
+     * Set the bits corresponding to word matches
+     *
+     * @param aIndex Index of data element
+     * @param aPosition Word matched for predictive search
+     */
+    void SetWordMap(TInt aIndex, TInt aPosition);
+
+    /**
+     * Checks if data at data index and word at word index
+     * is matched for predictive search
+     *
+     * @param aDataIndex Index of data element
+     * @param aWordIndex Word index
+     * @return TRUE if word matched else FALSE
+     */
+    TBool IsWordMatch(TInt aDataIndex, TInt aWordIndex);
+
+    /**
+     * Resets iWordMatches member variable
+     */
+    void ClearWordMatches();
+
+public:
+
+    /**
+     * Utility function that counts no of bit set in 32 bit number
+     */
+    TInt BitsSet32(TUint32 aData);
+
+    /**
+     * Utility function to split the query into multiple queries
+     */
+    RPointerArray<CPsQuery> MultiQueryL(CPsQuery& aQuery);
+
+    /**
+     * Convert the search query (multiple) to a list
+     */
+    void ConvertQueryToListL(RPointerArray<CPsQuery>& aSearchQuery,
+                             RPointerArray<HBufC>& aQueryList);
+
+private:
+
+    /**
+     * Constructor
+     */
+    CPcsAlgorithm2MultiSearchHelper();
+
+    /**
+     * 2nd phase construtor
+     */
+    void ConstructL(CPcsAlgorithm2* aAlgorithm);
+
+private:
+
+    /**
+     * Pointer to algorithm instance. Not owned.
+     */
+    CPcsAlgorithm2* iAlgorithm;
+
+    /**
+     * Pointer to key map instance. Not owned.
+     */
+    CPcsKeyMap* keyMap;
+
+    /**
+     * Array of result sets from different data stores.
+     */
+    typedef RPointerArray<CPsData> CPSDATA_R_PTR_ARRAY;
+    RPointerArray<CPSDATA_R_PTR_ARRAY> iMultiSearchResultsArr;
+
+    /**
+     * Array of word macthes.
+     */
+    TUint8 iWordMatches[MAX_DATA_FIELDS];
+    };
+
+#endif // C_PCS_ALGORITHM_2_MULTI_SEARCH_HELPER