/* * 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.riot.lang.LabelToNode ; import org.apache.jena.riot.out.NodeToLabel ; /** Factory for default policies for syntax labels to and from nodes * For label to node (parsing) we use a scalable hashing scheme (MD5 of a seed and the label) * * For node to label (pretty labels output), we use a unique tracking scheme. * Fully scalable writers use different polices and don't have short, pretty bNode labels. */ public class SyntaxLabels { /** Default setup - scope by document, relabel BNodes ids to short forms */ static public NodeToLabel createNodeToLabel() { return NodeToLabel.createScopeByDocument() ; } static public LabelToNode createLabelToNode() { return LabelToNode.createScopeByDocumentHash() ; } /** Round-trip setup */ static public NodeToLabel createNodeToLabelRT() { return NodeToLabel.createBNodeByLabelEncoded() ; } static public LabelToNode createLabelToNodeRT() { return LabelToNode.createUseLabelEncoded() ; } }