pjs/grendel/calypso/util/NullJavaEnumeration.java

44 строки
1.3 KiB
Java
Исходник Обычный вид История

1998-09-09 04:52:38 +04:00
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*/
/**
* This just returns an enumeration which never has anything in it.
*/
package calypso.util;
import java.util.Enumeration;
import java.util.NoSuchElementException;
public class NullJavaEnumeration implements Enumeration {
public static final Enumeration kInstance = new NullJavaEnumeration ();
protected NullJavaEnumeration ()
{
}
public boolean hasMoreElements() {
return false;
}
public Object nextElement() throws NoSuchElementException {
throw new NoSuchElementException();
}
}