/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */

#include "nsISupports.idl"
#include "nsIRDFResource.idl"
#include "nsIRDFNode.idl"

[scriptable, uuid(951700F0-FED0-11D2-BDD9-00104BDE6048)]
interface nsIRDFPurgeableDataSource : nsISupports
{
    boolean Mark(in nsIRDFResource aSource,
                 in nsIRDFResource aProperty,
                 in nsIRDFNode aTarget,
                 in boolean aTruthValue);

    void Sweep();
};
