/* Copyright (C) 2002 Univ. of Massachusetts Amherst, Computer Science Dept.
This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit).
http://www.cs.umass.edu/~mccallum/mallet
This software is provided under the terms of the Common Public License,
version 1.0, as published by http://www.opensource.org. For further
information, see the file `LICENSE' included with this distribution. */
/**
@author Andrew McCallum <a href="mailto:mccallum@cs.umass.edu">mccallum@cs.umass.edu</a>
*/
package cc.mallet.pipe.iterator;
import java.net.URI;
import java.util.Iterator;
import java.util.List;
import cc.mallet.types.Instance;
public class ArrayIterator implements Iterator<Instance>
{
Iterator subIterator;
Object target;
int index;
public ArrayIterator (List data, Object target)
{
this.subIterator = data.iterator ();
this.target = target;
this.index = 0;
}
public ArrayIterator (List data)
{
this (data, null);
}
public ArrayIterator (Object[] data, Object target)
{
this (java.util.Arrays.asList (data), target);
}
public ArrayIterator (Object[] data)
{
this (data, null);
}
public Instance next ()
{
URI uri = null;
try { uri = new URI ("array:" + index++); }
catch (Exception e) { e.printStackTrace(); throw new IllegalStateException(); }
return new Instance (subIterator.next(), target, uri, null);
}
public boolean hasNext () { return subIterator.hasNext(); }
public void remove() { subIterator.remove(); }
}