| /** |
| * 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.commons.rdf.rdf4j; |
| |
| import java.util.Optional; |
| |
| import org.apache.commons.rdf.api.GraphLike; |
| import org.apache.commons.rdf.api.TripleLike; |
| import org.eclipse.rdf4j.model.Model; |
| import org.eclipse.rdf4j.repository.Repository; |
| |
| /** |
| * Marker interface for RDF4J implementations of GraphLike. |
| * <p> |
| * This is a common interface for {@link RDF4JGraph} and {@link RDF4JDataset} |
| * which provides access to the underlying RDF4J {@link Model} and/or |
| * {@link Repository}. |
| * <p> |
| * At least one of {@link #asModel()} or {@link #asRepository()} will always be |
| * {@link Optional#isPresent()}. |
| * |
| * @see RDF4JDataset |
| * @see RDF4JGraph |
| */ |
| public interface RDF4JGraphLike<T extends TripleLike> extends GraphLike<T>, AutoCloseable { |
| |
| /** |
| * Return the corresponding RDF4J {@link Model}, if present. |
| * <p> |
| * The return value is {@link Optional#isPresent()} if this is backed by a |
| * Model. |
| * <p> |
| * Changes to the Model are reflected in both directions. |
| * |
| * @return The corresponding RDF4J Model. |
| */ |
| Optional<Model> asModel(); |
| |
| /** |
| * Return the corresponding RDF4J {@link Repository}, if present. |
| * <p> |
| * The return value is {@link Optional#isPresent()} if this is backed by a |
| * Repository. |
| * <p> |
| * Changes to the Repository are reflected in both directions. |
| * |
| * @return The corresponding RDF4J Repository. |
| */ |
| Optional<Repository> asRepository(); |
| |
| } |