diff -r 000000000000 -r 671dee74050a harvester/harvesterserver/inc/cblacklistdb.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/harvester/harvesterserver/inc/cblacklistdb.h	Mon Apr 19 14:40:16 2010 +0300
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2010 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:  This component is to store the details of blacklisted plugins
+*
+*/
+
+
+#ifndef CBLACKLISTDB_H
+#define CBLACKLISTDB_H
+
+#include <e32base.h>
+#include <f32file.h>
+#include <D32DBMS.H>
+
+class CBlacklistDb : public CBase
+    {
+public :
+    /*
+    * Construction
+    * @return instance of Blacklist database
+    */
+    static CBlacklistDb* NewL();
+    
+    /*
+    * Construction
+    * @return instance of Blacklist database
+    */
+    static CBlacklistDb* NewLC();
+    //Destructor
+    ~CBlacklistDb();
+    
+private :
+    /*
+    * Default constructor
+    */
+    CBlacklistDb();
+    
+    /*
+     * Second phase constructor
+     */
+    void ConstructL();
+    
+public :
+    /*
+     * @description Adds the given details of a plugin to the Blacklist DB.
+     * @param aPluginUid Uid of the plugin
+     * @param aVersion version of the plugin
+	 * @return sysmbian error code
+     * Leaves in case of errors.
+     */    
+    TInt  AddL( TInt32 aPluginUid , TInt aVersion );
+    
+    /*
+    * @description Removes the given details of a plugin from the Blacklist DB.
+    * @param aPluginUid Uid of the plugin
+    * Leaves in case of errors.
+    */ 
+    void  Remove( TInt32 aPluginUid );
+	
+	/*
+    * @description Updates the details of a plugin in the Blacklist DB.
+    * @param aPluginUid Uid of the plugin
+	* @param aVersion version of the plugin
+	* @return sysmbian error code
+    * Leaves in case of errors.
+    */
+	TInt UpdateL( TInt32 aPluginUid , TInt aVersion );
+    
+    /*
+     * @description Checks wether the plugin details are exists in the database or not.
+     * If the plugin Uid is found in the database and the version number passed is higher 
+     * than the version number stored in database, then this method will return EFalse.
+     * Assuming always a higher version is passed if there is any change in the 
+     * version number of plugin.
+     * @param aPluginUid Uid of the plugin
+     * @param aVersion version of the plugin
+     * @return ETrue if details exists else returns EFalse
+     * Leaves in case of errors.
+     */	
+    TBool FindWithVersionL(TInt32 aPluginUid , TInt aVersion);
+	
+	/*
+    * @description Checks if the plugin uid is present in the database.
+    * @param aPluginUid Uid of the plugin
+    * Leaves in case of errors.
+    */
+	TBool FindL(TInt32 aPluginUid);
+    
+private :
+    /*
+    * @description Creates the Blacklist database.
+    * Leaves in case of errors.
+    */
+    void CreateDBL();
+    
+	/*
+    * @description Creates Column set for database.
+	* @return CDbColSet database column set
+    * Leaves in case of errors.
+    */
+    CDbColSet* CreateColumnSetLC();
+private:    
+    /*
+     * A handle to a file server session.Owned
+     */
+    RFs iFs;
+    /*
+     * Database to maintain the details of Blacklisted plugin.Owned
+     */
+    RDbNamedDatabase  iDatabase;
+    /**
+     * Flag for, whether database has been opened
+     */
+    TBool iOpened;
+    };
+
+#endif /* CBLACKLISTDB_H */
+