net.sf.staccatocommons.iterators.SingleThriterator Maven / Gradle / Ivy
/**
* Copyright (c) 2010-2012, The StaccatoCommons Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
package net.sf.staccatocommons.iterators;
import java.util.NoSuchElementException;
import net.sf.staccatocommons.iterators.thriter.AdvanceThriterator;
/**
* An iterator that retrieves a single given element
*
* @author flbulgarelli
*
*/
public class SingleThriterator extends AdvanceThriterator {
private final A element;
private boolean consumed;
/**
* Creates a new {@link SingleThriterator}
*/
public SingleThriterator(A element) {
this.element = element;
}
public boolean hasNext() {
return !consumed;
}
public void advanceNext() throws NoSuchElementException {
if (!hasNext())
throw new NoSuchElementException();
consumed = true;
}
public A current() throws NoSuchElementException {
return element;
}
}