bcv-vf/src/org/codehaus/janino/util/iterator/EnumerationIterator.java

55 lines
2.3 KiB
Java

/*
* Janino - An embedded Java[TM] compiler
*
* Copyright (c) 2001-2010, Arno Unkrig
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
* following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package org.codehaus.janino.util.iterator;
import java.util.Enumeration;
import java.util.Iterator;
/**
* An {@link java.util.Iterator} that iterates over the elements of an {@link java.util.Enumeration}.
*
* @param <T> The element type of the enumeration and the iterator
*/
public
class EnumerationIterator<T> implements Iterator<T> {
private final Enumeration<T> e;
public EnumerationIterator(Enumeration<T> e) { this.e = e; }
@Override public boolean hasNext() { return this.e.hasMoreElements(); }
@Override public T next() { return this.e.nextElement(); }
/**
* Since {@link Enumeration}s don't support element removal, this method always throws
* an {@link UnsupportedOperationException}.
*
* @see Iterator#remove()
*/
@Override public void remove() { throw new UnsupportedOperationException("remove"); }
}