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 /* $Id: OneCharIterator.java 679326 2008-07-24 09:35:34Z vhennebert $ */ 19 20 package org.apache.fop.fo; 21 22 import java.util.NoSuchElementException; 23 24 /** 25 * Class providing an iterator for one character. 26 */ 27 public class OneCharIterator extends CharIterator { 28 29 private boolean bFirst = true; 30 private char charCode; 31 32 /** 33 * Constructor 34 * @param c the character that this iterator should iterate. 35 */ OneCharIterator(char c)36 public OneCharIterator(char c) { 37 this.charCode = c; 38 } 39 40 /** 41 * @return true if there is another element in the collection over which to 42 * iterate (since this iterator only handles one character, this will return 43 * false if it is past that character). 44 */ hasNext()45 public boolean hasNext() { 46 return bFirst; 47 } 48 49 /** 50 * @return the next character, if there is one (since there is only one 51 * character over which to iterate, it must be the first character). 52 * @throws NoSuchElementException if past the first character 53 */ nextChar()54 public char nextChar() throws NoSuchElementException { 55 if (bFirst) { 56 bFirst = false; 57 return charCode; 58 } else { 59 throw new NoSuchElementException(); 60 } 61 } 62 63 } 64 65