--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imservices/instantmessagingcache/imcacheserver/inc/mimcachemessageheader.h	Wed Nov 03 09:32:20 2010 +0530
@@ -0,0 +1,105 @@
+/*
+* 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:   base call of header class
+*
+*/
+
+
+#ifndef MIMCACHEMESSAGEHEADER_H
+#define MIMCACHEMESSAGEHEADER_H
+
+//INCLUDES
+
+#include <e32std.h>
+#include <e32base.h>
+
+//FORWARD DECLARATIONS
+class CIMCacheMessageBase;
+
+// CLASS DECLARATION
+
+/**
+ *  Interface for header information of history file
+ *  @lib imcacheserver.exe
+ *  @since 5.0
+ */
+class MIMCacheMessageHeader
+    {
+	public:
+
+		/**
+		 * Destructor.
+		 */
+		virtual ~MIMCacheMessageHeader() {};
+
+    public: // Interface
+	
+		/**
+		 *	service id
+		 *	@return a service id
+		 */
+		 virtual TInt ServiceId() const = 0;
+
+		/**
+		 *	user id of recipient 
+		 *	@return recipient user id
+		 */
+		virtual const TDesC& BuddyId() const = 0;
+		
+		/**
+		 *	return total message count
+		 */
+		virtual TInt MessageCount() const = 0 ;
+		
+		/**
+		 * get message at given index 
+		 * @param aIndex index
+		 */
+		virtual CIMCacheMessageBase* GetMessage(TInt aIndex )  = 0;
+	
+		/**
+		 * append message
+		 * @param aMessge message to append
+		 */
+        virtual void AppendMessageL(CIMCacheMessageBase* aMessge)  = 0 ; 
+     
+     	/**
+		 * UnreadMessageCount 
+		 * @return unread message count
+		 */
+        virtual TInt UnreadMessageCount() const = 0 ;  
+        
+         /**
+        * check wheather chat started or not
+        * @return ETrue started
+        */
+        virtual TBool IsChatStarted() = 0 ;
+        
+        /**
+        * set chat started 
+        * @param aStarted, a boolean value to set
+         */
+        virtual void SetChatStarted(TBool aStarted ) = 0 ;
+       
+      	/**
+        * mark all message read
+        */
+        virtual void MarkAllRead() = 0 ;
+             
+
+	    };
+
+#endif      // MIMCACHEMESSAGEHEADER_H
+
+// End of File