diff -r 6ca72c0fe49a -r a941bc465d9f IMPSengine/datautils/inc/impskey.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IMPSengine/datautils/inc/impskey.h	Wed Sep 01 12:31:13 2010 +0100
@@ -0,0 +1,211 @@
+/*
+* Copyright (c) 2002 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: 
+*     Interface for CImpsKey
+*
+*/
+
+
+#ifndef IMPS_CIMPSKEY_H
+#define IMPS_CIMPSKEY_H
+
+//  INCLUDES
+#include "impsdataaccessorapi.h"
+
+
+// DATA TYPES
+enum TImpsKeyOptions
+    {
+    EPartialKey = 0,
+    EWholeKey,
+    EPartialKeyLonger
+    };
+
+// FORWARD DECLARATIONS
+#ifdef _DEBUG
+class RFile;
+#endif
+
+// CLASS DECLARATION
+
+//
+// Currently index is limited to 128 possible values.
+// If this value is exceeded the implementation must be redesigned
+//
+
+/**
+*  CImpsKey class
+*  This class is used for identifying different elements
+*/
+class CImpsKey: public MImpsKey, public CBase
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        */
+        IMPORT_C static CImpsKey* NewL( );
+
+        /**
+        * Two-phased constructor.
+        */
+        IMPORT_C static CImpsKey* NewLC( );
+
+        /**
+        * Destructor.
+        */
+        IMPORT_C virtual ~CImpsKey();
+
+    public: // New functions
+
+        /**
+        * Add new elem to the key
+        * @param aElemvalue Element value
+        * @param aKeyType  Key type
+        * @return void
+        */
+        void AddL( const TInt aElemvalue , enum TImpsKeyType aKeyType = EImpsKeyTypeIM );
+
+        /**
+        * Count the elements in the key
+        * @return TInt Number of elements in key
+        */
+        inline TInt Count( ) const;
+
+        /**
+        * Pop the last element from the key
+        * If too much is tried the the function leaves
+        * @param aCount how many items to pop. default is 1
+        * @return void
+        */
+        void PopL( TInt aCount = 1 );
+
+        /**
+        * Get the requested element from the key
+        * @param aIndex Which element
+        * @param aKeyType Return keytype of element
+        * @return TInt
+        */
+        TInt GetElementL( const TInt aIndex, TImpsKeyType& aKeyType ) const;
+
+        /**
+        * Replaces the last element in the key
+        * @param aElemvalue  New element value
+        * @param aKeyType keytype of element
+        * @return void
+        */
+        void ReplaceLastL( const TInt aElemvalue , enum TImpsKeyType aKeyType = EImpsKeyTypeIM );
+
+        /**
+        * Resets the key to empty key
+        * @return void
+        */
+        void Reset( );
+
+        /**
+        * Equal operator
+        * @param aKey to compare with
+        * @return 1 = true, 0 is false
+        */
+        TInt Compare( MImpsKey &aKey );
+
+        /**
+        * Copy operator
+        * @return copied key
+        */
+        CImpsKey* CopyL( ) const;
+
+        /**
+        * Check Key
+        * @param aKey Key to be checked
+        * @param aOptions Checking options
+        * @return ETrue if checked ok
+        */
+        TBool CheckKey( const CImpsKey *aKey, TImpsKeyOptions aOptions ) const;
+
+        /**
+        * Equal operator
+        * @param key to compare with
+        * @return 1 = true, 0 is false
+        */
+        inline TInt operator==( const CImpsKey &aKey ) const;
+
+        /**
+        * Size
+        * @return size of the key
+        */
+        TInt Size( ) const;
+
+        /**
+        * Pack
+        * @param start pointer
+        * @return error or KErrNone in success
+        */
+        TInt Pack( const TUint8*& aPtrStart ) const;
+
+        /**
+        * UnPackL
+        * @param Pointer with stream to unpack
+        */
+        void UnPackL( TUint8*& aPtr );
+
+        /**
+        * Destructor
+        */
+        void Destroy( );
+
+#ifdef _DEBUG
+        /**
+        * DumpToFile
+        * @param file where to dump
+        */
+        void DumpToFileL( RFile& file ) const;
+#endif
+
+        /**
+        * SetElementIndex
+        * This function changes last elements index with the given index.
+        * If Key size is 0 then this function doesn't do anything.
+        * @param aCount is which element
+        * @param aNewIndex new index for the element in the key
+        */
+        void SetElementIndex( TInt aCount, TInt aNewIndex );
+
+    private:
+
+        /**
+        * By default Symbian OS constructor is private.
+        */
+        CImpsKey();
+
+        /**
+        * Symbian OS second phase construct
+        */
+        void ConstructL();
+
+        // By default, prohibit copy constructor
+        CImpsKey( const CImpsKey& );
+        // Prohibit assigment operator
+        CImpsKey& operator= ( const CImpsKey& );
+
+    private:    // Data
+        HBufC16* iBuffer;
+        TInt    iCount; // Number of items in the buffer
+    };
+
+#include "ImpsKey.inl"
+
+
+#endif
+// End of File