1090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2008 The Guava Authors 3090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 4090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Licensed under the Apache License, Version 2.0 (the "License"); 5090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * you may not use this file except in compliance with the License. 6090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * You may obtain a copy of the License at 7090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 8090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 9090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 10090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Unless required by applicable law or agreed to in writing, software 11090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 12090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * See the License for the specific language governing permissions and 14090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * limitations under the License. 15090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson */ 16090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 17090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonpackage com.google.common.collect; 18090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 19090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonimport com.google.common.annotations.GwtCompatible; 20090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 21090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonimport java.util.Iterator; 22090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson 23090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson/** 24090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * An iterator that does not support {@link #remove}. 25090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 26090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * @author Jared Levy 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @since 2.0 (imported from Google Collections Library) 28090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson */ 29090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson@GwtCompatible 30090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilsonpublic abstract class UnmodifiableIterator<E> implements Iterator<E> { 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert /** Constructor for use by subclasses. */ 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert protected UnmodifiableIterator() {} 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 34090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson /** 35090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * Guaranteed to throw an exception and leave the underlying data unmodified. 36090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * 37090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson * @throws UnsupportedOperationException always 38090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson */ 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @Override 40090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson public final void remove() { 41090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson throw new UnsupportedOperationException(); 42090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson } 43090f9b4c879985bc747c214f82c62471e60c7742Jesse Wilson} 44