1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 */ 4 /* 5 * Licensed to the Apache Software Foundation (ASF) under one or more 6 * contributor license agreements. See the NOTICE file distributed with 7 * this work for additional information regarding copyright ownership. 8 * The ASF licenses this file to You under the Apache License, Version 2.0 9 * (the "License"); you may not use this file except in compliance with 10 * the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 package com.sun.org.apache.xerces.internal.xs; 22 23 import java.util.List; 24 25 /** 26 * The <code>StringList</code> is an immutable ordered collection of 27 * <code>GenericString</code>. 28 * 29 * @LastModified: Oct 2017 30 */ 31 public interface StringList extends List<String> { 32 /** 33 * The number of <code>GenericString</code>s in the list. The range of 34 * valid child object indices is 0 to <code>length-1</code> inclusive. 35 */ 36 public int getLength(); 37 38 /** 39 * Checks if the <code>GenericString</code> <code>item</code> is a member 40 * of this list. 41 * @param item <code>GenericString</code> whose presence in this list is 42 * to be tested. 43 * @return True if this list contains the <code>GenericString</code> 44 * <code>item</code>. 45 */ 46 public boolean contains(String item); 47 48 /** 49 * Returns the <code>index</code>th item in the collection or 50 * <code>null</code> if <code>index</code> is greater than or equal to 51 * the number of objects in the list. The index starts at 0. 52 * @param index index into the collection. 53 * @return The <code>GenericString</code> at the <code>index</code>th 54 * position in the <code>StringList</code>, or <code>null</code> if 55 * the index specified is not valid. 56 */ 57 public String item(int index); 58 59 }