    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}