org.apache.myfaces.shared_impl.util.NullEnumeration Maven / Gradle / Ivy
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* 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.shared_impl.util;
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 (Wed, 18 Jul 2007) $
*/
public 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");
}
}