--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/storage/inc/ncdstorageitem.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,118 @@
+/*
+* 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_NCDSTORAGEITEM_H
+#define M_NCDSTORAGEITEM_H
+
+
+class MNcdStorageDataItem;
+
+/**
+ * Database storage item interface
+ *
+ * Used to operate on items in the database
+ */
+class MNcdStorageItem
+{
+public:
+
+    /**
+     * Opens the item for reading/writing. 
+     * Must be saved or rollbacked
+     */
+    virtual void OpenL() = 0;
+
+    /**
+     * Marks the item as saved but doesn't commit it to storage until all 
+     * opened items are saved
+     */
+    virtual void SaveL() = 0;
+
+    /**
+     * Rollbacks modifications to this item and all other open or saved but
+     * not committed items in the database
+     */
+    virtual void Rollback() = 0;
+
+    /**
+     * Internalizes data from the database to the data item set for this item.
+     */
+    virtual void ReadDataL() = 0;
+
+
+    /**
+     * Externalizes data from the data item to the database
+     */
+    virtual void WriteDataL() = 0;
+
+    /**
+     * Removes the item from the database
+     */
+    virtual void RemoveFromStorageL() = 0;
+
+    /**
+     * Reads the data from the database and returns it in a descriptor.     
+     *
+     * @return Item's data in a 8-bit descriptor. The descriptor is added
+     * to the cleanupstack
+     */
+    virtual HBufC8* GetDataLC() = 0;
+
+
+    /**
+     * Open-state getter
+     *
+     * @return ETrue if the item is open, otherwise EFalse
+     */
+    virtual TBool IsOpen() const = 0;
+
+    
+    /**
+     * Item UID getter
+     *
+     * @return Item's UID
+     */
+    virtual const TDesC& Uid() const = 0;
+
+    
+    /**
+     * Item type getter
+     * 
+     * @return Item's type
+     */
+    virtual TInt Type() const = 0;
+
+    
+    /**
+     * Sets data item for this item.
+     *
+     * ReadDataL() and WriteDataL() internalize and externalize data from
+     * this data item to/from the database
+     */
+    virtual void SetDataItem( MNcdStorageDataItem* aDataItem ) = 0;
+
+protected:
+
+    virtual ~MNcdStorageItem()
+        {
+        }
+};
+
+
+
+#endif
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