diff -r 000000000000 -r ba25891c3a9e ncdengine/provider/storage/inc/ncdstorage.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/storage/inc/ncdstorage.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,107 @@
+/*
+* 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:  
+*
+*/
+
+
+#ifndef M_NCDSTORAGE_H
+#define M_NCDSTORAGE_H
+
+
+class MNcdDatabaseStorage;
+class MNcdFileStorage;
+class RFs;
+
+/**
+ *  Storage interface
+ *
+ *  A storage can contain several databases and file storages (directories)
+ *
+ *
+ */
+class MNcdStorage
+    {
+public:
+
+    /**
+     * Database storage getter
+     *
+     * Creates the database if it doesn't already exist.
+     *
+     * @param aUid UID of the database
+     * @return Reference to the database     
+     * @throw KErrArgument if the name was empty
+     */     
+    virtual MNcdDatabaseStorage& DatabaseStorageL( const TDesC& aUid ) = 0;
+
+
+    /**
+     * File storage getter
+     *
+     * Creates the file storage if it doesn't already exist.
+     *
+     * @param aUid UID of the file storage
+     * @return Reference to the file storage
+     * @throw KErrArgument if the name was empty
+     */     
+    virtual MNcdFileStorage& FileStorageL( const TDesC& aUid ) = 0;
+
+
+    /**
+     * Storage namespace getter
+     *
+     * @return Storage namespace
+     */
+    virtual const TDesC& Namespace() const = 0;
+
+
+    /**
+     * Storage subdirectory getter
+     *
+     * @return Storage directory
+     * @note Directory is the namespace that is encoded to ensure
+     * compatibility with the filesystem
+     */
+    virtual const TDesC& Directory() const = 0;
+    
+    
+    /**
+     * File session getter
+     *
+     * @return File session
+     */
+    virtual RFs& FileSession() = 0;    
+    
+    
+     /**
+      * Storage size getter
+      *
+      * Returns the combined size of all databases and filestorages in
+      * this namespace.
+      *
+      * @return Storage size in bytes
+      */
+     virtual TInt SizeL() = 0;
+    
+    
+protected:
+
+    virtual ~MNcdStorage()
+        {
+        }
+    };
+
+
+#endif // M_NCDSTORAGE_H