--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationlandmarksrefappfors60/Inc/LandmarksDbEventHandler.h	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,109 @@
+/*
+* Copyright (c) 2004-2005 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:  
+*     See class description below
+*
+*/
+
+
+#ifndef __LANDMARKS_DB_EVENT_HANDLER_H__
+#define __LANDMARKS_DB_EVENT_HANDLER_H__
+
+
+#include "LandmarksDbObserver.h"
+#include <e32base.h>
+#include <EPos_Landmarks.h>
+
+
+class CPosLandmarkDatabase;
+class MLandmarksDbEventObserver;
+
+
+
+/**
+*  In the Landmark reference application there is only one instance of 
+*  CLandmarksDbEventHandler. It is the only object observing the 
+*  default landmark database directly. Other objects that want to observe the 
+*  database must register to this object. When an event occurs this object 
+*  broadcasts it to all registered observers.
+*/
+class CLandmarksDbEventHandler : public CActive
+    {
+    public: // Constructors and destructor
+
+        /**
+        * C++ constructor.
+        *
+        * @param aDb the database to observer
+        */
+        CLandmarksDbEventHandler(
+            CPosLandmarkDatabase& aDb);
+
+        /**
+        * Destructor.
+        */
+        ~CLandmarksDbEventHandler();
+
+    public: // New functions
+
+        /**
+        * AddObserverL registers a db observer.
+        *
+        * @param aObserver the observer to register
+        */
+        void AddObserverL(MLandmarksDbObserver* aObserver);
+
+    protected: // from CActive
+
+        /**
+        * Handles an active object’s request completion event.
+        */
+        void RunL();
+
+        /**
+        * Implements cancellation of an outstanding request.
+        */
+        void DoCancel();
+
+        /**
+        * Handles a leave occurring in the request completion event 
+        * handler RunL().
+        *
+        * @return KErrNone
+        */
+        TInt RunError(TInt aError);
+
+    private:
+
+        /**
+        * Starts observing of db enevs
+        */
+        void ObserveEvents();
+
+    private:
+
+        //! The database to observe
+        CPosLandmarkDatabase& iDb;
+
+        //! A db event to be reported
+        TPosLmEvent iEvent;
+
+        //! An array of registered observers
+        RPointerArray<MLandmarksDbObserver> iDbObservers;
+
+    };
+
+
+#endif // __LANDMARKS_DB_EVENT_HANDLER_H__
+