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 018package org.apache.commons.jxpath; 019 020import java.util.List; 021 022/** 023 * 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 024 * List or Set), in which case it will be given a collection of <em>values</em> matching the path. 025 */ 026public interface NodeSet { 027 028 /** 029 * Returns a list of nodes. 030 * 031 * @return List 032 */ 033 List getNodes(); 034 035 /** 036 * Returns a list of pointers for all nodes in the set. 037 * 038 * @return List 039 */ 040 List<Pointer> getPointers(); 041 042 /** 043 * Returns a list of values of all contained pointers. 044 * 045 * @return List 046 */ 047 List getValues(); 048}