gecko-dev/rdf/base/rdfIDataSource.idl

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/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
interface rdfITripleVisitor;
/**
* Interface used in RDF to describe data sources.
*
* @status PLASMA
*/
[scriptable, uuid(ebce86bd-1568-4a34-a808-9ccf9cde8087)]
interface rdfIDataSource : nsISupports
{
/**
* Visit all the subject resources in the datasource. The order is
* intederminate and may change from one invocation to the next.
* The subjects will be in the aSubject argument in calls into
* aVisitor, aPredicate and aObject will be null.
* @note Implementations may throw NS_ERROR_NOT_IMPLEMENTED for
* this method, but in this case RDF serializations of this
* datasource will not be possible.
*/
void visitAllSubjects(in rdfITripleVisitor aVisitor);
/**
* Visit all the triples in the datasource. The order is
* intederminate and may change from one invocation to the next.
* @note Implementations may throw NS_ERROR_NOT_IMPLEMENTED for
* this method, but in this case RDF serializations of this
* datasource will not be possible.
*/
void visitAllTriples(in rdfITripleVisitor aVisitor);
};