uk.ac.bbk.dcs.automed.qproc.optimise.optimisers
Class ComprehensionSimplification

java.lang.Object
  uk.ac.bbk.dcs.automed.qproc.optimise.optimisers.ComprehensionSimplification

public class ComprehensionSimplification
extends java.lang.Object

This Class optimises expressions involving the "choose" built-in function.

Author:

Lucas Zamboulis

Field Summary

protected java.util.logging.Logger

logger

Constructor Summary

ComprehensionSimplification(boolean disjointIDs)
The three simplification rules.

Method Summary

boolean	optimise(ASG g)
boolean	optimise(Cell c)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected java.util.logging.Logger logger

Constructor Detail

ComprehensionSimplification

public ComprehensionSimplification(boolean disjointIDs)

The three simplification rules.

Method Detail

optimise

public boolean optimise(Cell c)
                 throws QueryOptimisationException

Throws:

QueryOptimisationException

optimise

public boolean optimise(ASG g)