pjs/rdf/base/idl/nsIRDFObserver.idl

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/* -*- 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"
// An nsIRDFObserver object is an observer that will be notified
// when assertions are made or removed from a datasource
[scriptable, uuid(3CC75360-484A-11D2-BC16-00805F912FE7)]
interface nsIRDFObserver : nsISupports {
// This method is called whenever a new assertion is made
// in the data source
void OnAssert(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
// This method is called whenever an assertion is removed
// from the data source
void OnUnassert(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
void OnChange(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aOldTarget,
in nsIRDFNode aNewTarget);
void OnMove(in nsIRDFResource aOldSource,
in nsIRDFResource aNewSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
};