An observer that is notified as progress is made on the load
 of an RDF/XML document in an <code>nsIRDFXMLSink</code>.
[scriptable, uuid(eb1a5d30-ab33-11d2-8ec6-00805f29f370)]
interface nsIRDFXMLSinkObserver : nsISupports

Methods

 Called when the load begins.
 @param aSink the RDF/XML sink on which the load is beginning.
void onBeginLoad(in nsIRDFXMLSink aSink) 
 Called when an RDF/XML load completes successfully.
 @param aSink the RDF/XML sink that has finished loading.
void onEndLoad(in nsIRDFXMLSink aSink) 
 Called when an error occurs during the load
 @param aSink the RDF/XML sink in which the error occurred
 @param aStatus the networking result code
 @param aErrorMsg an error message, if applicable
void onError(in nsIRDFXMLSink aSink, in nsresult aStatus, in wstring aErrorMsg) 
 Called when the load is suspended (e.g., for network quantization).
 @param aSink the RDF/XML sink that is being interrupted.
void onInterrupt(in nsIRDFXMLSink aSink) 
 Called when a suspended load is resuming.
 @param aSink the RDF/XML sink that is resuming.
void onResume(in nsIRDFXMLSink aSink)