--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mds_plat/metadata_engine_api/inc/mdeinstanceitem.h	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,67 @@
+/*
+* Copyright (c) 2009 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:  ?Description
+*
+*/
+
+
+#ifndef __MDEINSTANCEITEM_H__
+#define __MDEINSTANCEITEM_H__
+
+
+#include <mdeitem.h>
+
+enum TMdEInstanceType
+	{
+	EMdETypeObject = 1,
+	EMdETypeRelation,
+	EMdETypeEvent,
+	EMdETypeProperty
+	};
+
+/**
+ * Abstract base class for all instance items stored in the metadata engine database.
+ */
+NONSHARABLE_CLASS(CMdEInstanceItem) : public CMdEItem
+	{
+public:
+	
+	/* Destructor. */
+
+	/**
+	 * Destructor.
+	 */
+	virtual ~CMdEInstanceItem();
+
+
+	/* Methods. */
+
+	virtual TMdEInstanceType InstanceType() const = 0;
+	
+protected:
+
+	/* Constructors. */
+
+	/**
+	 * Constructor.
+	 */
+	CMdEInstanceItem(CMdESession* aSession, TItemId aId);
+
+	/**
+	 * Second-phase constructor.
+	 */
+	void InstanceItemBaseConstruct();
+	};
+
+#endif  // __MDEINSTANCEITEM_H__