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 import java.util.List;
21
22 /**
23 * NodeSet interface can be used as the type of an argument of an extension function. Alternatively, the function can declare the argument as a Collection (or
24 * List or Set), in which case it will be given a collection of <em>values</em> matching the path.
25 */
26 public interface NodeSet {
27
28 /**
29 * Returns a list of nodes.
30 *
31 * @return List
32 */
33 List getNodes();
34
35 /**
36 * Returns a list of pointers for all nodes in the set.
37 *
38 * @return List
39 */
40 List<Pointer> getPointers();
41
42 /**
43 * Returns a list of values of all contained pointers.
44 *
45 * @return List
46 */
47 List getValues();
48 }