--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/metadataengine/server/inc/mdsclausebuffer.h	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,118 @@
+/*
+* 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:  A unicode des buffer with automatic memory*
+*/
+
+#ifndef __MDSCLAUSEBUFFER_H__
+#define __MDSCLAUSEBUFFER_H__
+
+// INCLUDE FILES
+#include <e32base.h>
+
+
+/**
+ * An automatic clause buffer class. The class provides Descriptor 
+ * functionality, plus automatic memory handling so that it reserves
+ * the required space automatically as the size grows.
+ */
+class CMdsClauseBuffer: public CBase
+    {
+    public: // public definitions
+
+        /**
+         * Static constructor
+         * @param aInitialSize size of the buffer
+         * @return buffer instance
+         */
+        IMPORT_C static CMdsClauseBuffer* NewL( TInt aInitialSize );
+
+        /**
+         * Static constructor
+         * @param aInitialSize size of the buffer
+         * @return buffer instance
+         */
+        IMPORT_C static CMdsClauseBuffer* NewLC( TInt aInitialSize );
+
+        virtual ~CMdsClauseBuffer();
+
+    private:
+
+        /**
+         * Default constructor
+         */
+        CMdsClauseBuffer();
+
+        /**
+         * 2nd phase constructor
+         * @param aInitialSize size of the buffer
+         */
+        void ConstructL( TInt aInitialSize );
+
+    public:
+
+        /**
+         * Appends a descriptor at the end of this descriptor.
+         * Increases the size of the descriptor if needed.
+         * @param aDes descriptor which is appended
+         */
+        void AppendL( const TDesC16& aDes );
+
+        /**
+         * Appends a descriptor at the end of this descriptor.
+         * Increases the size of the descriptor if needed.
+         * @param aDes descriptor which is appended
+         * @param aAdditionl 
+         */
+        void AppendL( const TDesC16& aDes, const TInt aAdditional );
+
+        /**
+         * Makes sure the buffer max size is AT LEAST given required bytes.
+         * @param aRequired required buffer total size
+         * @return ETrue if the buffer was re-allocated
+         */
+        TBool ReserveSpaceL( TInt aRequired );
+    
+        /**
+         * Return buffer.
+         * 
+         * @return buffer
+         * 
+		 * @leave KErrNotFound Buffer is NULL.
+         */
+        TPtr BufferL() const;
+        
+        /**
+         * Return const reference to buffer.
+         * 
+         * @return const reference to buffer
+         * 
+		 * @leave KErrNotFound Buffer is NULL.
+         */
+        const TDesC& ConstBufferL() const;
+        
+    private:
+
+        /**
+         * The heap buffer
+         */
+        HBufC* iBuffer;
+
+        /**
+         * Current size of the buffer
+         */
+        TInt iCurrentBufSize;
+    };
+
+
+#endif // __MDSCLAUSEBUFFER_H__