IterableAdapter.java

package edu.berkeley.nlp.util;

import java.util.Iterator;

public class IterableAdapter {

	public static interface Convertor<S,T>  { public T convert(S s); }
	
	public static <S,T> Iterable<T> adapt(final Iterable<S> iterable, final Convertor<S,T> convertor) {
		return new Iterable<T>() {			
			public Iterator<T> iterator() {
				final Iterator<S> origIt = iterable.iterator();
				return new Iterator<T>() {

					public boolean hasNext() {						
						return origIt.hasNext();
					}

					public T next() {
						// TODO Auto-generated method stub
						return convertor.convert(origIt.next());
					}

					public void remove() {
						// TODO Auto-generated method stub
						origIt.remove();
					}
					
				};
			}
			
		};
	}
	
}