--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/inc/ncdnodeseen.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,70 @@
+/*
+* Copyright (c) 2007-2008 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:   Contains MNcdNodeSeen
+*
+*/
+
+
+#ifndef M_NCDNODESEEN_H
+#define M_NCDNODESEEN_H
+
+#include "catalogsbase.h"
+#include "ncdinterfaceids.h"
+
+
+/**
+ * This interface can be used to set a node as seen, or ask the 'seen' state
+ * of the node. This is useful if new nodes should be separated from the seen
+ * ones somehow. This interface can be queried from a node. If the node is
+ * set as seen, all the nodes that have the same metadata are automatically
+ * set as seen.
+ *
+ * 
+ */
+class MNcdNodeSeen : public virtual MCatalogsBase
+    {
+
+public:
+
+    /**
+     * Unique identifier for the interface, required for all MCatalogsBase interfaces.
+     *
+     * 
+     */
+    enum { KInterfaceUid = ENcdNodeSeenUid };
+    
+    /**
+     * Tells whether the metadata is seen.
+     */
+    virtual TBool IsSeen() const = 0;
+    
+    /**
+     * Sets the node as seen. Note, the effect takes place when the client-server session
+     * is closed. All the other nodes having the same metadata are set as seen too.
+     */
+    virtual void SetSeenL() = 0;
+    
+protected:
+
+    /**
+    * Destructor.
+    *
+    * @see MCatalogsBase::~MCatalogsBase
+    */
+    virtual ~MNcdNodeSeen() {}
+
+    };
+
+
+#endif // M_NCDNODESEEN_H