/**
 * Removes and returns the minimum element in the host list.  Assumes host list contains Integer objects.
 * @exception NoSuchElementException if the host list is empty.
 * @author Dung X. Nguyen - Copyright 1999 - All rights reserved.
 */
public class RemMin implements IAlgo
{
	public final static RemMin Singleton = new RemMin ();

	private RemMin()
	{
	}

	/**
	 * @param host 
	 * @param input not used. 
	 * @return 
	 */
	public Object nullCase(QFList host, Object input)
	{
		throw new java.util.NoSuchElementException ("RemMin.nullCase - host is empty.");
	}

	/**
	 * @param host 
	 * @param input not used.
	 * @return 
	 */
	public Object nonNullCase(QFList host, Object input)
	{
		return host.getRest ().execute (RemMinHelper.Singleton, host);
	}
}