--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/syncmlfw/ds/syncagent/inc/nsmldsluidbuffer.h	Thu Dec 17 09:07:52 2009 +0200
@@ -0,0 +1,118 @@
+/*
+* Copyright (c) 2005 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:  LUID buffering
+*
+*/
+
+
+#ifndef __NSMLDSLUIDBUFFER_H__
+#define __NSMLDSLUIDBUFFER_H__
+
+// INCLUDES
+#include <e32base.h>
+#include <SmlDataSyncDefs.h>
+#include "nsmldshostclient.h"
+
+// FORWARD DECLARATIONS
+class CNSmlDSHostClient;
+class CNSmlDSContentItem;
+
+// CLASS DECLARATION
+
+/**
+* Class for LUID (Local UID) buffering.
+*
+* @lib nsmldsagent.lib
+*/
+class CNSmlDSLUIDBuffer : public CBase 
+    {
+    public: // constructors and destructor
+        /**
+        * C++ constructor.
+        * @param aHostClient Host Client used for communication with the Host Session.
+        * @param aContentItem Sync content whose LUIDs are buffered.
+        */
+        CNSmlDSLUIDBuffer( CNSmlDSHostClient& aHostClient, CNSmlDSContentItem& aContentItem );
+
+        /**
+        * Destructor.
+        */
+        ~CNSmlDSLUIDBuffer();
+
+    public: // new functions
+        /**
+        * Gets the current UID.
+        * @param aLocalUID On return contains the current UID.
+        */
+        void CurrentUID( TSmlDbItemUid& aLocalUID ) const;
+
+        /**
+        * Gets the first UID and the command associated to its modification type from buffer.
+        * @param aLocalUID On return contains the next UID.
+        * @param aCmdName On return contains the command associated with the returned UID's
+        *        modification type.
+        * @return KErrNone if completed successfully or KErrEof if the buffer is empty
+        */
+        TInt NextUIDL( TSmlDbItemUid& aLocalUID, TDes8& aCmdName );
+
+        /**
+        * Gets the total number of UIDs, both in the buffer and written.
+        * @return TInt representing the number of UIDs in the buffer.
+        */
+        TInt ClientItemCount() const;
+		
+        /**
+        * Sets the current UID as written and removes it from the buffer.
+        */
+        void SetCurrentItemWritten();
+		
+        /**
+        * Gets UIDs of all modified items from datastore to the buffer asynchronously.
+        * @param aResultCode On return contains the result code of the operation.
+        */
+        void FetchModificationsL( TInt& aResultCode );
+		
+    private: // constructors & operators
+        /**
+        * Prohibit copy constructor.
+        */
+        CNSmlDSLUIDBuffer( const CNSmlDSLUIDBuffer& aOther );
+		
+        /**
+        * Prohibit assignment operator.
+        */
+        CNSmlDSLUIDBuffer& operator=( const CNSmlDSLUIDBuffer& aOther );
+
+    private: // data
+        // internal states
+        enum TState    
+            {		
+            EModifications = 1,
+            EEnd
+            };
+        // current state
+        TState iCurrState;		
+        // array of buffered modification items
+        RNSmlDbItemModificationSet iModificationSet;		
+        // reference to the ds hostclient
+        CNSmlDSHostClient& iHostClient;
+        // reference to the current content (datastore) data
+        CNSmlDSContentItem& iContentItem;
+        // the number of written items
+        TInt iWrittenItems;
+    };
+
+#endif // __NSMLDSLUIDBUFFER_H__
+
+// End of File