test12/src/main/java/org/apache/myfaces/test/mock/_NullEnumeration.java

/*
 *  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.myfaces.test.mock;

import java.util.Enumeration;
import java.util.NoSuchElementException;

/**
 * Enumeration without elements
 *
 * @author Anton Koinov (latest modification by $Author: matzew $)
 * @version $Revision: 557350 $ $Date: 2007-07-18 13:19:50 -0500 (Mié, 18 Jul 2007) $
 */
final class _NullEnumeration implements Enumeration
{
    private static final _NullEnumeration s_nullEnumeration = new _NullEnumeration();

    public static final _NullEnumeration instance()
    {
        return s_nullEnumeration;
    }

    public boolean hasMoreElements()
    {
        return false;
    }

    public Object nextElement()
    {
        throw new NoSuchElementException("NullEnumeration has no elements");
    }
}