diff -r 000000000000 -r d0791faffa3f mtpfws/mtpfw/dataproviders/dataproviderapi/interface/mmtpreferencemgr.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/dataproviders/dataproviderapi/interface/mmtpreferencemgr.h	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,104 @@
+// Copyright (c) 2006-2009 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:
+//
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+
+#ifndef MMTPREFERENCEMGR_H
+#define MMTPREFERENCEMGR_H
+
+#include <badesca.h>
+#include <e32cmn.h>
+#include <e32def.h>
+
+class CMTPTypeArray;
+class TMTPTypeUint32;
+
+/** 
+Defines the MTP data provider framework object reference manager interface.
+
+@publishedPartner
+@released
+*/
+class MMTPReferenceMgr
+    {
+public:
+    
+    /**
+    Provides an MTP array of the target object handles which are referenced 
+    by the specified source object handle. A pointer to the MTP array is 
+    placed on the cleanup stack.
+    @param aFromHandle The MTP object handle of the source object from which 
+    the references originate.
+    @return The MTP reference target object handle array. Ownership IS transferred.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual CMTPTypeArray* ReferencesLC(const TMTPTypeUint32& aFromHandle) const = 0;
+    
+    /**
+    Provides an SUID array of the target object SUIDs which are referenced by 
+    the specified source object SUID. A pointer to the SUID array is 
+    placed on the cleanup stack.
+    @param aFromSuid The SUID of the source object from which the references 
+    originate.
+    @return The reference target object SUID array. Ownership IS transferred.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual CDesCArray* ReferencesLC(const TDesC& aParentSuid) const = 0;
+    
+    /**
+    Removes all object reference links in which the specified SUID represents 
+    either the source or target reference object.
+    @param aSuid The object SUID.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual void RemoveReferencesL(const TDesC& aSuid) = 0;
+
+    /**
+    Creates an abstract reference linkage between the specified source and 
+    target object SUIDs.
+    @param aFromSuid The SUID of the source object from which the reference 
+    originates.
+    @param aToSuid The SUID of the target object to which the reference is 
+    made.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual void SetReferenceL(const TDesC& aFromSuid, const TDesC& aToSuid) = 0;
+    
+    /**
+    Replaces the abstract reference links originating from the specified 
+    source object SUID with the specified set of target object SUIDs.
+    @param aFromSuid The SUID of the source object from which the references 
+    originate.
+    @param aToSuids The reference target object SUID array.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual void SetReferencesL(const TDesC& aFromSuid, const CDesCArray& aToSuids) = 0;
+    
+    /**
+    Replaces the abstract reference links originating from the specified 
+    source object handle with the specified set of target object handles.
+    @param aFromHandle The MTP object handle of the source object from which 
+    the references originate.
+    @param aToHandles The reference target MTP object handle array.
+    @leave One of the system wide error codes, if a processing failure occurs.
+    */
+    virtual void SetReferencesL(const TMTPTypeUint32& aFromHandle, const CMTPTypeArray& aToHandles) = 0;
+    };
+#endif // MMTPREFERENCEMGR_H