--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/server/inc/ncdstorable.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,70 @@
+/*
+* Copyright (c) 2006 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 MStorable interface
+*
+*/
+
+
+#ifndef M_NCD_STORABLE_H
+#define M_NCD_STORABLE_H
+
+
+// RWriteStream, RReadStream
+#include <s32strm.h> 
+
+
+/**
+ * Interface for items that may be inserted to the database.
+ *
+ * @note Objects that are inserted to the database should
+ * implement MNcdStorageDataItem-interface. This interface
+ * is meant for the objects that MNcdStorageDataItem-object
+ * may want to insert to the database. In other words,
+ * MNcdStorageDataItem-forwards InternalizeL and ExternalizeL
+ * calls to the objects that implement this interface.
+ *
+ */
+class MNcdStorable
+{
+
+public:
+
+    /** 
+     * Destructor
+     *
+     * By safety reasons it is always good idea to implement
+     * virtual destructor for interfaces. If the object
+     * is deleted using this interface, then also destructors
+     * of child classes will be called.
+     */
+    virtual ~MNcdStorable() { }
+
+    /**
+     * Writes the implementing object's data to the stream
+     *
+     * @param aStream Write stream
+     */
+    virtual void ExternalizeL( RWriteStream& aStream ) = 0;
+
+
+    /**
+     * Reads the implementing object's data from the stream
+     * 
+     * @param aStream Read stream
+     */
+    virtual void InternalizeL( RReadStream& aStream ) = 0;    
+};
+
+
+#endif // M_NCD_STORABLE_H