at.dms.kjc.sir.linear.transform
Class LinearTransformNull

java.lang.Object
  at.dms.kjc.sir.linear.transform.LinearTransform
      at.dms.kjc.sir.linear.transform.LinearTransformNull

public class LinearTransformNull
extends LinearTransform

Represents a null transform -- eg no transform to apply. This class represents the graceful way to not perform a transform on an ill-defined input. For example, if a splitjoin is unschedulable, we can't perform a combination so a Null transform is returned.
$Id: LinearTransformNull.java,v 1.4 2006/01/25 17:02:01 thies Exp $

Constructor Summary

LinearTransformNull(String r)
Creates a new LinearTransformNull.

Method Summary

LinearFilterRepresentation

transform() Actually implements the specific transform.

Methods inherited from class at.dms.kjc.sir.linear.transform.LinearTransform

divCeiling, gcd, gcd, lcm, lcm

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LinearTransformNull

public LinearTransformNull(String r)

Creates a new LinearTransformNull. The reason that no transform was possible specified in the string r.

Method Detail

transform

public LinearFilterRepresentation transform()
                                     throws NoTransformPossibleException

Description copied from class: LinearTransform

Actually implements the specific transform. Returns a LinearFilterRepresentation that results from applying the appropriate transformation.

Specified by:

transform in class LinearTransform

Throws:

NoTransformPossibleException