/** 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 DECLARATIONSclass 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