зеркало из https://github.com/mozilla/gecko-dev.git
49 строки
1.4 KiB
Java
49 строки
1.4 KiB
Java
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil -*-
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is the Grendel mail/news client.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1997
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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import java.util.NoSuchElementException;
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import java.util.Enumeration;
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/**
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* An enumeration to return a single element.
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*/
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public class SingleEnumeration implements Enumeration {
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Object fElement;
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boolean fSpent;
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public SingleEnumeration(Object aElement) {
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fSpent = false;
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fElement = aElement;
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}
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public boolean hasMoreElements() {
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return !fSpent;
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}
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public Object nextElement() throws NoSuchElementException {
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if (fSpent) {
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throw new NoSuchElementException();
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}
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else {
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fSpent = true;
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return fElement;
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}
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}
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}
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