1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.jxpath;
19
20 /**
21 * A delegate of {@link JXPathContext} that implements the XPath {@code "id()"} function. This delegate is only used when there is no default implementation of
22 * the {@code id()} function. For example, it is <em>not</em> used when the root of the context is a DOM Node.
23 */
24 public interface IdentityManager {
25
26 /**
27 * Finds a node by its ID.
28 *
29 * @param context JXPathContext
30 * @param id String
31 * @return Pointer
32 */
33 Pointer getPointerByID(JXPathContext context, String id);
34 }