diff -r 000000000000 -r ba25891c3a9e ncdengine/provider/server/inc/ncddependencyinfo.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/server/inc/ncddependencyinfo.h	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,221 @@
+/*
+* 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:   CNcdDependencyInfo
+*
+*/
+
+
+#ifndef NCD_DEPENDENCY_INFO
+#define NCD_DEPENDENCY_INFO
+
+#include <e32base.h>
+#include <e32cmn.h>
+
+#include "ncdnodedependency.h"
+
+class RReadStream; 
+class RWriteStream;
+class CNcdNodeIdentifier;
+
+/**
+ *  This class provides functions to get information about dependency
+ *  nodes or dependency content.
+ */
+class CNcdDependencyInfo: public CBase
+{
+public:
+
+    /** 
+     * @see CNcdDependencyInfo::ConstructL
+     *
+     * @param aIdentifier Ownership is transferred immediately, caller MUST NOT put
+     * this into cleanupstack
+     */
+    static CNcdDependencyInfo* NewL(  
+                     const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     const TDesC& aUid,
+                     CNcdNodeIdentifier* aIdentifier );
+    
+    /**
+     * @see CNcdDependencyInfo::NewL
+     * @param aIdentifier Ownership is transferred immediately, caller MUST NOT put
+     * this into cleanupstack
+     *
+     */
+    static CNcdDependencyInfo* NewLC(
+                     const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     const TDesC& aUid,
+                     CNcdNodeIdentifier* aIdentifier );
+
+
+    /** 
+     * @see CNcdDependencyInfo::ConstructL
+     * @param aIdentifier Ownership is transferred immediately, caller MUST NOT put
+     * this into cleanupstack     
+     */
+    static CNcdDependencyInfo* NewL(  
+                     const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     TUid aUid,
+                     CNcdNodeIdentifier* aIdentifier );
+    
+    /**
+     * @see CNcdDependencyInfo::NewL
+     * @param aIdentifier Ownership is transferred immediately, caller MUST NOT put
+     * this into cleanupstack     
+     */
+    static CNcdDependencyInfo* NewLC(
+                     const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     TUid aUid,
+                     CNcdNodeIdentifier* aIdentifier );
+
+
+    /** 
+     * @see CNcdDependencyInfo::ConstrucL
+     */
+    static CNcdDependencyInfo* NewL( RReadStream& aReadStream );
+    
+    /**
+     * @see CNcdDependencyInfo::NewL
+     */
+    static CNcdDependencyInfo* NewLC( RReadStream& aReadStream );
+
+
+    /**
+     * Destructor
+     */
+    virtual ~CNcdDependencyInfo();
+
+
+    /** 
+     * @return const TDesC& Name of the dependency content
+     */
+    const TDesC& Name() const;
+
+    /** 
+     * @return const TDesC& Version of the dependency content
+     */
+    const TDesC& Version() const;
+    
+    /** 
+     * @return TUid Uid of the dependency content
+     */
+    TUid Uid() const;
+
+
+    /** 
+     * return const CNcdNodeIdentifier* Identifier of the metadata that
+     * will provide the dependency content. If an identifier has not
+     * been set, then NULL is returned. Ownership is NOT transferred.
+     */
+    const CNcdNodeIdentifier* Identifier() const;
+
+
+    /**
+     * Dependency state setter
+     *
+     * @param aState Dependency state
+     */
+    void SetDependencyState( TNcdDependencyState aState );
+    
+    
+    /**
+     * Dependency state getter
+     *
+     * @return aState Dependency state
+     */
+    TNcdDependencyState DependencyState() const;
+    
+
+    /** 
+     * @param aReadStream
+     */
+    virtual void InternalizeL( RReadStream& aReadStream );
+
+    /** 
+     * @param aWriteStream
+     */
+    virtual void ExternalizeL( RWriteStream& aWriteStream ) const;
+
+
+protected:
+    /** 
+     * Constructor
+     * @param aIdentifier Identifier of the metadata that will provide the
+     * dependency content. NULL if dependency is already given as a content
+     * and node is not provided.
+     */
+    CNcdDependencyInfo( CNcdNodeIdentifier* aIdentifier );
+    
+    /** 
+     * ConstructL
+     *
+     * @note If this function leaves, then the node identifier will be
+     * deleted.
+     * 
+     * @param aName Name of the dependency content
+     * @param aVersion Version of the dependency content
+     * @param aUid Uid of the dependency content
+     * Ownership is transferred.
+     */
+    void ConstructL( const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     const TDesC& aUid );
+
+    /** 
+     * ConstructL
+     *
+     * @note If this function leaves, then the node identifier will be
+     * deleted.
+     * 
+     * @param aName Name of the dependency content
+     * @param aVersion Version of the dependency content
+     * @param aUid Uid of the dependency content
+     */
+    void ConstructL( const TDesC& aName, 
+                     const TDesC& aVersion, 
+                     TUid aUid );
+                     
+    /** 
+     * ConstructL
+     * @param aReadStream Stream is used to internalize this class object.
+     */
+    void ConstructL( RReadStream& aReadStream );
+
+
+private:
+    CNcdDependencyInfo( const CNcdDependencyInfo& aObject );
+    CNcdDependencyInfo& operator =( const CNcdDependencyInfo& aObject );
+
+
+private: // data
+
+    // Name of the dependency content
+    HBufC* iName;
+    // Version of the dependency content
+    HBufC* iVersion;
+    // Uid of the dependency content
+    TUid iUid;
+    // Identifier of the metadata that will provide the
+    // dependency content.
+    CNcdNodeIdentifier* iIdentifier;
+    
+    // State of the dependency: missing, upgrade available, installed
+    TNcdDependencyState iDependencyState;
+};
+
+#endif // NCD_DEPENDENCY_INFO