code: //==============================================================================
  //	
  //	Copyright (c) 2007 Carlos Bederian
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM is free software; you can redistribute it and/or modify
  //	it under the terms of the GNU General Public License as published by
  //	the Free Software Foundation; either version 2 of the License, or
  //	(at your option) any later version.
  //	
  //	PRISM 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 General Public License for more details.
  //	
  //	You should have received a copy of the GNU General Public License
  //	along with PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package jltl2ba;
  
  import java.util.Iterator;
  import java.util.NoSuchElementException;
  
  public class APElementIterator implements Iterator<APElement> {
  	
  	private APElement it;
  	private int _size;
  	
  	// Iterator linked to a bitset
  	public APElementIterator(APElement ap_elem) {
  		_size = ap_elem.size();
  		it = new APElement(_size);
  	}
  	
  	// Iterator to 2^size elements
  	public APElementIterator(int size) {
  		_size = size;
  		it = new APElement(size);
  	}
  	
  	public boolean hasNext() {
  		return !it.get(_size); 
  	}
  	
  	public APElement next() throws NoSuchElementException {
  		if (hasNext()) {
  			APElement tmp = (APElement) it.clone();
  			it.increment();
  			return tmp;
  		}
  		else throw new NoSuchElementException();
  	}
  	
  	public void remove() throws UnsupportedOperationException
  	{
  		throw new UnsupportedOperationException();
  	}
  }
  