/usr/share/idl/firefox/nsIRDFObserver.idl is in firefox-dev 11.0+build1-0ubuntu4.
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/* ***** BEGIN LICENSE BLOCK *****
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*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
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* the Initial Developer. All Rights Reserved.
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* Contributor(s):
*
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#include "nsISupports.idl"
#include "nsIRDFResource.idl"
#include "nsIRDFNode.idl"
interface nsIRDFDataSource;
// 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
* @param aDataSource the datasource that is issuing
* the notification.
* @param aSource the subject of the assertion
* @param aProperty the predicate of the assertion
* @param aTarget the object of the assertion
*/
void onAssert(in nsIRDFDataSource aDataSource,
in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
/**
* This method is called whenever an assertion is removed
* from the data source
* @param aDataSource the datasource that is issuing
* the notification.
* @param aSource the subject of the assertion
* @param aProperty the predicate of the assertion
* @param aTarget the object of the assertion
*/
void onUnassert(in nsIRDFDataSource aDataSource,
in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
/**
* This method is called when the object of an assertion
* changes from one value to another.
* @param aDataSource the datasource that is issuing
* the notification.
* @param aSource the subject of the assertion
* @param aProperty the predicate of the assertion
* @param aOldTarget the old object of the assertion
* @param aNewTarget the new object of the assertion
*/
void onChange(in nsIRDFDataSource aDataSource,
in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aOldTarget,
in nsIRDFNode aNewTarget);
/**
* This method is called when the subject of an assertion
* changes from one value to another.
* @param aDataSource the datasource that is issuing
* the notification.
* @param aOldSource the old subject of the assertion
* @param aNewSource the new subject of the assertion
* @param aProperty the predicate of the assertion
* @param aTarget the object of the assertion
*/
void onMove(in nsIRDFDataSource aDataSource,
in nsIRDFResource aOldSource,
in nsIRDFResource aNewSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
/**
* This method is called when a datasource is about to
* send several notifications at once. The observer can
* use this as a cue to optimize its behavior. The observer
* can expect the datasource to call endUpdateBatch() when
* the group of notifications has completed.
* @param aDataSource the datasource that is going to
* be issuing the notifications.
*/
void onBeginUpdateBatch(in nsIRDFDataSource aDataSource);
/**
* This method is called when a datasource has completed
* issuing a notification group.
* @param aDataSource the datasource that has finished
* issuing a group of notifications
*/
void onEndUpdateBatch(in nsIRDFDataSource aDataSource);
};
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