001 /* 002 * JBoss DNA (http://www.jboss.org/dna) 003 * See the COPYRIGHT.txt file distributed with this work for information 004 * regarding copyright ownership. Some portions may be licensed 005 * to Red Hat, Inc. under one or more contributor license agreements. 006 * See the AUTHORS.txt file in the distribution for a full listing of 007 * individual contributors. 008 * 009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA 010 * is licensed to you under the terms of the GNU Lesser General Public License as 011 * published by the Free Software Foundation; either version 2.1 of 012 * the License, or (at your option) any later version. 013 * 014 * JBoss DNA is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 017 * Lesser General Public License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this software; if not, write to the Free 021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 023 */ 024 package org.jboss.dna.common.collection; 025 026 import java.util.Iterator; 027 import java.util.NoSuchElementException; 028 029 /** 030 * @author jverhaeg 031 * @param <T> some type 032 */ 033 public final class EmptyIterator<T> implements Iterator<T> { 034 035 /** 036 * {@inheritDoc} 037 * 038 * @see java.util.Iterator#hasNext() 039 */ 040 public boolean hasNext() { 041 return false; 042 } 043 044 /** 045 * {@inheritDoc} 046 * 047 * @see java.util.Iterator#next() 048 */ 049 public T next() { 050 throw new NoSuchElementException(); 051 } 052 053 /** 054 * {@inheritDoc} 055 * 056 * @see java.util.Iterator#remove() 057 */ 058 public void remove() { 059 throw new UnsupportedOperationException(); 060 } 061 }