| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.ldap.util; |
| |
| |
| import java.util.NoSuchElementException; |
| |
| import javax.naming.NamingException; |
| import javax.naming.NamingEnumeration; |
| |
| |
| /** |
| * An empty NamingEnumeration without any values: meaning |
| * hasMore/hasMoreElements() always returns false, and next/nextElement() always |
| * throws a NoSuchElementException. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class EmptyEnumeration<T> implements NamingEnumeration<T> |
| { |
| |
| /** |
| * @see javax.naming.NamingEnumeration#close() |
| */ |
| public void close() |
| { |
| } |
| |
| |
| /** |
| * Always returns false. |
| * |
| * @see javax.naming.NamingEnumeration#hasMore() |
| */ |
| public boolean hasMore() throws NamingException |
| { |
| return false; |
| } |
| |
| |
| /** |
| * Always throws NoSuchElementException. |
| * |
| * @see javax.naming.NamingEnumeration#next() |
| */ |
| public T next() throws NamingException |
| { |
| throw new NoSuchElementException(); |
| } |
| |
| |
| /** |
| * Always return false. |
| * |
| * @see java.util.Enumeration#hasMoreElements() |
| */ |
| public boolean hasMoreElements() |
| { |
| return false; |
| } |
| |
| |
| /** |
| * Always throws NoSuchElementException. |
| * |
| * @see java.util.Enumeration#nextElement() |
| */ |
| public T nextElement() |
| { |
| throw new NoSuchElementException(); |
| } |
| |
| } |