1 /* 2 * Copyright (C) 2008 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.GwtCompatible; 20 21 import java.util.Iterator; 22 23 /** 24 * An iterator that does not support {@link #remove}. 25 * 26 * @author Jared Levy 27 * @since 2.0 (imported from Google Collections Library) 28 */ 29 @GwtCompatible 30 public abstract class UnmodifiableIterator<E> implements Iterator<E> { 31 /** Constructor for use by subclasses. */ 32 protected UnmodifiableIterator() {} 33 34 /** 35 * Guaranteed to throw an exception and leave the underlying data unmodified. 36 * 37 * @throws UnsupportedOperationException always 38 * @deprecated Unsupported operation. 39 */ 40 @Deprecated 41 @Override 42 public final void remove() { 43 throw new UnsupportedOperationException(); 44 } 45 } 46
