--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eventsui/eventsengine/src/evtdbnotifier.cpp	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,181 @@
+/*
+* 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:  Notifier class for any change in Storage API dtabase.
+*
+*/
+
+
+// System Includes
+#include <centralrepository.h>
+
+// User Includes
+#include "evtdbnotifier.h"
+#include "evtdebug.h"
+
+// ================ Member funtions for CEvtDatabase class ==================
+
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::CEvtDbNotifier
+// ---------------------------------------------------------------------------
+//
+CEvtDbNotifier::CEvtDbNotifier( MEvtDbObserver&    aObserver )
+						:CActive( EPriorityStandard ),
+						iDbObserver( aObserver )
+    {
+    }
+    
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::~CEvtDbNotifier
+// ---------------------------------------------------------------------------
+//
+CEvtDbNotifier::~CEvtDbNotifier()
+    {
+	Cancel();
+    delete iRepository; 
+    } 
+    
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::NewL
+// ---------------------------------------------------------------------------
+//
+CEvtDbNotifier* CEvtDbNotifier::NewL( MEvtDbObserver&    aObserver )
+    {
+	CEvtDbNotifier* self = NewLC( aObserver );
+	CleanupStack::Pop( self );
+	return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::NewLC
+// ---------------------------------------------------------------------------
+//
+CEvtDbNotifier* CEvtDbNotifier::NewLC( MEvtDbObserver&    aObserver )
+    {
+	CEvtDbNotifier* self = new ( ELeave )CEvtDbNotifier( aObserver );
+	CleanupStack::PushL( self );
+	self->ConstructL( );
+	return self;
+    } 
+
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CEvtDbNotifier::ConstructL()
+    {
+	EVTUIDEBUG( "+ CEvtDbNotifier::ConstructL()" );
+    CActiveScheduler::Add(this);
+    
+	EVTUIDEBUG( "Calling CRepository::NewL" );
+    // Create the Central repository object notifying the Db change
+    TRAPD(err, iRepository = CRepository::NewL( TUid::Uid( KCRUidEvtStorageDb ) ) );
+	EVTUIDEBUG1( "Calling CRepository::NewL Cenrep Error Code- %d", err );
+	User::LeaveIfError( err );
+    // Request for notification
+    StartNotification();
+    
+	EVTUIDEBUG( "- CEvtDbNotifier::ConstructL()" );
+    } 
+
+// ---------------------------------------------------------------------------
+// void CEvtDbNotifier::RunL()
+// ---------------------------------------------------------------------------
+//                             
+void CEvtDbNotifier::RunL()
+    {
+	EVTUIDEBUG( "+ CEvtDbNotifier::RunL()" );
+    // resubscribe before processing new value to prevent missing updates
+	StartNotification();
+	
+	// processing new value
+	HandleDbChangedL();
+	
+	EVTUIDEBUG( "- CEvtDbNotifier::RunL()" );
+    }
+    
+// ---------------------------------------------------------------------------
+// void CEvtDbNotifier::DoCancel()
+// ---------------------------------------------------------------------------
+// 
+void CEvtDbNotifier::DoCancel()
+    {
+	EVTUIDEBUG( "+ CEvtDbNotifier::DoCancel()" );
+    // Cancel the outstanding CR notification request
+    if( iRepository )
+        {
+        iRepository->NotifyCancel( KEvtDbChangeType );        
+        }
+	EVTUIDEBUG( "- CEvtDbNotifier::DoCancel()" );
+    }
+
+// ---------------------------------------------------------------------------
+// TInt CEvtDbNotifier::RunError()
+// ---------------------------------------------------------------------------
+//    
+TInt CEvtDbNotifier::RunError( TInt aError )
+	{    	
+	return CActive::RunError( aError );	
+	} 
+
+// ---------------------------------------------------------------------------
+// void CEvtDbNotifier::StartNotification()
+// ---------------------------------------------------------------------------
+//  
+void CEvtDbNotifier::StartNotification()
+    {
+	EVTUIDEBUG( "+ CEvtDbNotifier::StartNotification()" );
+    if( !IsActive() )
+        {
+        iStatus = KRequestPending;
+        // Request for notification
+    	iRepository->NotifyRequest( KEvtDbChangeType, iStatus );
+        SetActive();          
+        }  
+	EVTUIDEBUG( "- CEvtDbNotifier::StartNotification()" );
+    }
+
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::HandleDbChangedL
+// ---------------------------------------------------------------------------
+//
+void CEvtDbNotifier::HandleDbChangedL( )
+    {    
+	EVTUIDEBUG( "+ CEvtDbNotifier::HandleDbChangedL()" );
+    // Notify the Observer for the database change type
+    iDbObserver.HandleDbChangedL( );
+	EVTUIDEBUG( "- CEvtDbNotifier::HandleDbChangedL()" );
+    }
+    
+// ---------------------------------------------------------------------------
+// CEvtDbNotifier::DbChangedL
+// ---------------------------------------------------------------------------
+//
+void CEvtDbNotifier::DbChangedL( )
+    {
+	EVTUIDEBUG( "+ CEvtDbNotifier::DbChangedL()" );
+    // Get the type of database change from Cenrep key
+    TInt flag = 0;
+    User::LeaveIfError( iRepository->Get( KEvtDbChangeType, flag ) );  
+    
+    EVTUIDEBUG1( "In DbChangedL Get %d", flag );
+    flag = ( flag == 0 ) ? 1 : 0;
+    EVTUIDEBUG1( "In DbChangedL Set %d", flag );
+    
+    // Set the KEvtDbChangeType key of the Cenrep, So that other database
+    // connection can get the notifications
+    User::LeaveIfError( iRepository->Set( KEvtDbChangeType, flag ) );
+	EVTUIDEBUG( "- CEvtDbNotifier::DbChangedL()" );
+    }
+    
+// End of File