--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/metadataengine/server/src/mdsclausebuffer.cpp	Mon Jan 18 20:34:07 2010 +0200
@@ -0,0 +1,141 @@
+/*
+* 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 handling*
+*/
+
+#include "mdsclausebuffer.h"
+
+// ---------------------------------------------------------------------------
+// NewL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMdsClauseBuffer* CMdsClauseBuffer::NewL( TInt aInitialSize )
+    {
+    CMdsClauseBuffer* that = CMdsClauseBuffer::NewLC( aInitialSize );
+    CleanupStack::Pop( that );
+    return that;
+    }
+
+// ---------------------------------------------------------------------------
+// NewLC
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMdsClauseBuffer* CMdsClauseBuffer::NewLC( TInt aInitialSize )
+    {
+    CMdsClauseBuffer* that = new( ELeave ) CMdsClauseBuffer();
+    CleanupStack::PushL( that );
+    that->ConstructL( aInitialSize );
+    return that;
+    }
+
+// ---------------------------------------------------------------------------
+// CMdCAutoBuf
+// ---------------------------------------------------------------------------
+//
+CMdsClauseBuffer::CMdsClauseBuffer()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ~CMdCAutoBuf
+// ---------------------------------------------------------------------------
+//
+CMdsClauseBuffer::~CMdsClauseBuffer()
+    {
+    delete iBuffer;
+    }
+
+// ---------------------------------------------------------------------------
+// ConstructL
+// ---------------------------------------------------------------------------
+//
+void CMdsClauseBuffer::ConstructL( TInt aInitialSize )
+    {
+    if ( aInitialSize < 1 )
+    	{
+    	aInitialSize = 1;
+    	}
+    iCurrentBufSize = aInitialSize;
+    if (aInitialSize > 100000 || aInitialSize < 0)
+    	{
+    	aInitialSize = 0;
+    	}
+
+    iBuffer = HBufC::NewL( iCurrentBufSize );
+    }
+
+// ---------------------------------------------------------------------------
+// AppendL
+// ---------------------------------------------------------------------------
+//
+void CMdsClauseBuffer::AppendL( const TDesC& aDes )
+    {
+    AppendL( aDes, 0 );
+    }
+
+void CMdsClauseBuffer::AppendL( const TDesC& aDes, const TInt aAdditional )
+	{
+	ReserveSpaceL( iBuffer->Size() + aDes.Length() + 1 + aAdditional );
+
+	iBuffer->Des().Append( aDes );
+	}
+
+
+// ---------------------------------------------------------------------------
+// ReserveSpaceL
+// ---------------------------------------------------------------------------
+//
+TBool CMdsClauseBuffer::ReserveSpaceL( TInt aRequired )
+    {
+    // check if the current buffer is enough
+    if ( iCurrentBufSize >= aRequired  )
+        {
+        return EFalse;
+        }
+
+	iCurrentBufSize = aRequired;
+
+    // realloc and copy
+    iBuffer = iBuffer->ReAllocL( iCurrentBufSize );
+
+    return ETrue;
+    }
+
+// ---------------------------------------------------------------------------
+// BufferL
+// ---------------------------------------------------------------------------
+//
+TPtr CMdsClauseBuffer::BufferL() const
+	{
+	if( !iBuffer )
+		{
+		User::Leave( KErrNotFound );
+		}
+
+	return iBuffer->Des();
+	}
+
+// ---------------------------------------------------------------------------
+// ConstBufferL
+// ---------------------------------------------------------------------------
+//
+const TDesC& CMdsClauseBuffer::ConstBufferL() const
+	{
+	if( !iBuffer )
+		{
+		User::Leave( KErrNotFound );
+		}
+
+	return *iBuffer;
+	}