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

java.lang.Object
  at.dms.kjc.sir.statespace.transform.LinearTransform
      at.dms.kjc.sir.statespace.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 1.2 2006/01/25 17:02:33 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.statespace.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