001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.jxpath; 018 019 /** 020 * A delegate of {@link JXPathContext} that implements the XPath <code>"id()"</code> 021 * function. This delegate is only used when there is no default implementation 022 * of the <code>id()</code> function. For example, it is <i>not</i> used 023 * when the root of the context is a DOM Node. 024 * 025 * @author Dmitri Plotnikov 026 * @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $ 027 */ 028 public interface IdentityManager { 029 030 /** 031 * Finds a node by its ID. 032 * @param context JXPathContext 033 * @param id String 034 * @return Pointer 035 */ 036 Pointer getPointerByID(JXPathContext context, String id); 037 }