001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.commons.rdf.jena;
020
021// NOTE: To avoid confusion, don't import Graph as it exists in both APIs
022import org.apache.jena.rdf.model.Model;
023//
024
025/**
026 * A Jena-backed {@link org.apache.commons.rdf.api.Graph}.
027 * <p>
028 * The underlying Jena {@link org.apache.jena.graph.Graph} can be accessed with
029 * {@link #asJenaGraph()}.
030 */
031public interface JenaGraph extends org.apache.commons.rdf.api.Graph {
032
033    /**
034     * Return the underlying Jena {@link org.apache.jena.graph.Graph}.
035     * <p>
036     * Changes to the Jena graph are reflected in the Commons RDF graph and vice
037     * versa.
038     *
039     * @return A Jena {@link org.apache.jena.graph.Graph}
040     */
041    public org.apache.jena.graph.Graph asJenaGraph();
042
043    /**
044     * Return the graph as a Jena {@link Model}.
045     * <p>
046     * Changes to the Jena model are reflected in the Commons RDF graph and vice
047     * versa.
048     * <p>
049     * Note that in some cases there is no underlying Jena {@link Model}, in
050     * which case this method will create one. Subsequent calls should return
051     * the same model.
052     *
053     * @return A Jena {@link Model}
054     */
055    public Model asJenaModel();
056}