IndexIterator.java

package database;

import java.util.Iterator;
import java.util.NavigableSet;

import org.mapdb.Fun.Tuple2;

public class IndexIterator<T> implements Iterator<T> {

	private Iterator<Tuple2<?, T>> iterator;
	private int index;

	public IndexIterator(NavigableSet<Tuple2<?, T>> set)
	{
		this.iterator = set.iterator();
		this.index = 0;
	}

	@Override
	public boolean hasNext() {
		return this.iterator.hasNext();
	}

	@Override
	public T next() {
		this.index++;
		return this.iterator.next().b;
	}

	@Override
	public void remove() {
		this.iterator.remove();
	}
}