| /* |
| * Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed 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.naming.resources; |
| |
| import java.util.Vector; |
| import java.util.Enumeration; |
| import javax.naming.NamingException; |
| import javax.naming.NamingEnumeration; |
| |
| /** |
| * Naming enumeration implementation. |
| * |
| * @author Remy Maucherat |
| * @version $Revision: 1.1.2.1 $ $Date: 2007/08/17 15:46:28 $ |
| */ |
| |
| public class RecyclableNamingEnumeration<E> |
| implements NamingEnumeration<E> { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| public RecyclableNamingEnumeration(Vector<E> entries) { |
| this.entries = entries; |
| recycle(); |
| } |
| |
| |
| // -------------------------------------------------------------- Variables |
| |
| |
| /** |
| * Entries. |
| */ |
| protected Vector<E> entries; |
| |
| |
| /** |
| * Underlying enumeration. |
| */ |
| protected Enumeration<E> enumeration; |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Retrieves the next element in the enumeration. |
| */ |
| public E next() |
| throws NamingException { |
| return nextElement(); |
| } |
| |
| |
| /** |
| * Determines whether there are any more elements in the enumeration. |
| */ |
| public boolean hasMore() |
| throws NamingException { |
| return enumeration.hasMoreElements(); |
| } |
| |
| |
| /** |
| * Closes this enumeration. |
| */ |
| public void close() |
| throws NamingException { |
| } |
| |
| |
| public boolean hasMoreElements() { |
| return enumeration.hasMoreElements(); |
| } |
| |
| |
| public E nextElement() { |
| return enumeration.nextElement(); |
| } |
| |
| |
| // -------------------------------------------------------- Package Methods |
| |
| |
| /** |
| * Recycle. |
| */ |
| void recycle() { |
| enumeration = entries.elements(); |
| } |
| |
| |
| } |
| |