diff -r 000000000000 -r e6b17d312c8b imservices/instantmessagingcache/imcacheclient/inc/cimcacheupdater.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imservices/instantmessagingcache/imcacheclient/inc/cimcacheupdater.h	Thu Dec 17 08:54:49 2009 +0200
@@ -0,0 +1,167 @@
+/*
+* Copyright (c) 2008 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:  class declaration for updating the cache
+*
+*/
+
+
+
+#ifndef __CIMCACHEUPDATER_H__
+#define __CIMCACHEUPDATER_H__
+
+#include <e32base.h>
+#include "mimcacheupdater.h"
+#include "cimcacheclient.h"
+
+class MIMCacheEventHandler;
+
+/**
+ * write right class declaration
+ */
+ 
+NONSHARABLE_CLASS( CIMCacheUpdater ): public CBase,
+								 public MIMCacheUpdater
+    {
+	public:
+		/**
+		* Two-phased constructor.
+		* @param aServiceId, service id to used
+		* @param aUserId, user id who is conversing
+		*/
+		static CIMCacheUpdater* NewL(TInt aServiceId,
+									const TDesC& aUserId,
+									TBool aRegistrationNeeded );
+		/**
+		* virtual destructor.
+		*/
+    	virtual ~CIMCacheUpdater();
+
+		
+	private:
+	
+		/**
+		* ConstructL.
+		* @param aUserId, user id who is conversing
+		*/
+		
+    	void ConstructL( const TDesC& aUserId, TBool aRegistrationNeeded );
+    	
+    	/**
+		* default constructor.
+		* @param aServiceId, service id to used
+		*/
+		CIMCacheUpdater(TInt aServiceId);
+		
+		/**
+		* default constructor.
+		* @param aServiceId, service id to used
+		*/
+		void InternalizeChatListL( RArray<SIMCacheChatItem>& aChatArray, TPtr8 aChatListBuffer, TBool& aMore );
+
+	private: // from MIMCacheUpdater
+
+		/**
+    	* Register to observer instantmessagingcache data updates
+    	* @param aObserver the observer interface
+    	*/
+        void RegisterObserverL( MIMCacheEventHandler& aObserver );
+
+    	/**
+    	* Unregister a instantmessagingcache data update observer
+    	* @param aObserver the observer interface
+    	*/
+        void UnRegisterObserver( MIMCacheEventHandler& aObserver);
+        
+				
+		/**
+        * start a new conversation 
+        * @param aBuddyId a recipient user id
+        */
+		void StartNewConversationL(const TDesC& aBuddyId ) ;
+		
+		/**
+        * append the new recieve message
+        * @param aSender a sender user id
+        * @param aRecipient a recipient user id
+        * @param aText a text to append
+        */
+		void AppendReceiveMessageL( const TDesC& aBuddyId, 
+								   const TDesC& aText ) ;
+		
+		/**
+        * append the new send message
+        * @param aText a text to append
+        */
+		void AppendSendMessageL(const TDesC& aText ) ;
+		
+		/**
+        * append the normal information message
+        * @param aBuddyId buddy id.
+        * @param aText a text to append
+        */
+		void AppendMessageL(const TDesC& aBuddyId, const TDesC& aText) ;
+		
+		
+		/**
+		* closes conversation and commit operation
+		* @param aServiceId service id.
+		* @param aBuddyId buddy id.
+		* @param aRecipientId recipient's user id.
+		*/
+		void CloseConversationL( const TDesC& aBuddyId ) ;
+		
+		/*
+		 * close all conversation in service Id
+		 */
+		void CloseAllConversationL();
+		
+		/**
+        * Deactivate all open conversations and commit operation
+        */
+		TInt DeactivateConversationL() ;
+		
+      	
+		/**
+        * get the chat list corresponding to service
+        * @param aServiceId service id
+        * @return Array of chats
+        */
+		RArray<SIMCacheChatItem> GetChatListL( const TInt aServiceId  ); 
+		
+		
+    public : // new api
+    	
+       /**
+		* return the serviceid
+		*/
+    	TInt ServiceId() const ;	        
+		
+	private: // data
+
+		// owned , user id
+		HBufC* iUserId;
+		
+		// not owned , client
+		CIMCacheClient iClient;
+		
+		// owned, service id
+		TInt iServiceId;
+	
+    };
+
+#endif      //  __CIMCACHEUPDATER_H__
+
+
+//  END OF FILE
+