/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.jena.riot.system; import org.apache.jena.graph.Triple ; import org.apache.jena.sparql.core.Quad ; /** The interface for the output of RDF, such as the RIOT parsers. * The parser event model is that items are emitted for signficant events. * The events are start/finish, emitting triples/quads/tuples as necessary, prefixes and base directives. * Tuples are generalized triples or quads. A triple language will call triple(), * quad language quad() in preference. */ public interface StreamRDF { /** Start processing */ public void start() ; /** Triple emitted */ public void triple(Triple triple) ; /** Quad emitted */ public void quad(Quad quad) ; // /** Generalized emitted */ // public void tuple(Tuple<Node> tuple) ; // /** base declaration seen */ public void base(String base) ; /** prefix declaration seen */ public void prefix(String prefix, String iri) ; /** Finish processing */ public void finish() ; }