package Sorter;

/**
 * A decorated ordering strategy that swaps the inputs to enable reverse sorting.    Note that this is not the same as negating the normal operations.
 */
public class ReverseOrder extends AOrder
{
	private AOrder aOrder;

	/**
	 * Constructor for the class.
	 * @param aOrder The decoree.
	 */
	public ReverseOrder(AOrder aOrder)
	{
		this.aOrder = aOrder;
	}

	/**
	 * Defined as eq(y,.x).
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean eq(Object x, Object y)
	{
		return (aOrder.eq(y,x));
	}

	/**
	 * Defined as ne(y,x);
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean ne(Object x, Object y)
	{
		return (aOrder.ne(y,x));
	}

	/**
	 * Defined as lt(y,x);
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean lt(Object x, Object y)
	{
		return (aOrder.lt(y,x));
	}

	/**
	 * Defined as le(y,x);
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean le(Object x, Object y)
	{
		return (aOrder.le(y,x));
	}

	/**
	 * Defined as gt(y,x);
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean gt(Object x, Object y)
	{
		return (aOrder.gt(y,x));
	}

	/**
	 * Defined as ge(y,x);
	 * @param x 
	 * @param y 
	 * @return 
	 */
	public boolean ge(Object x, Object y)
	{
		return (aOrder.ge(y,x));
	}

	/**
	 * Accessor method for the decoree.
	 * @param aOrder The decorated AOrder object.
	 */
	public void setOrder(AOrder aOrder)
	{
		this.aOrder = aOrder;
	}
}