org.kuali.rice.krms.framework.engine
Class CompoundProposition

java.lang.Object
  org.kuali.rice.krms.framework.engine.CompoundProposition

All Implemented Interfaces:

Proposition

public final class CompoundProposition
extends Object
implements Proposition

An implementation of Proposition which holds other Propositions and a LogicalOperator.

Author:

Kuali Rice Team (rice.collab@kuali.org)

Constructor Summary

CompoundProposition(LogicalOperator logicalOperator, List<Proposition> propositions)
Create a CompoundProposition with the given values

Method Summary

PropositionResult	evaluate(ExecutionEnvironment environment) This method evaluates this proposition -- and in the case of Propositions containing children, those children as well -- and returns the boolean result;
List<Proposition>	getChildren() This method returns the List of child Propositions that belong to this object.
boolean	isCompound() Indicates whether this Proposition can have children.
void	logPropositionResult(Proposition proposition, PropositionResult propositionResult, ExecutionEnvironment environment)

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundProposition

public CompoundProposition(LogicalOperator logicalOperator,
                           List<Proposition> propositions)

Create a CompoundProposition with the given values

Parameters:

logicalOperator -

propositions -

Method Detail

evaluate

public PropositionResult evaluate(ExecutionEnvironment environment)

Description copied from interface: Proposition

This method evaluates this proposition -- and in the case of Propositions containing children, those children as well -- and returns the boolean result;

Specified by:

evaluate in interface Proposition

Parameters:

environment - the ExecutionEnvironment that this Proposition is running in

Returns:

the boolean result of evaluation

logPropositionResult

public void logPropositionResult(Proposition proposition,
                                 PropositionResult propositionResult,
                                 ExecutionEnvironment environment)

getChildren

public List<Proposition> getChildren()

Description copied from interface: Proposition

This method returns the List of child Propositions that belong to this object. If there are no children (e.g. for simple Proposition types), this must return an empty List.

Specified by:

getChildren in interface Proposition

Returns:

a List containing any child Propositions that belong to this object. Must never return null.

isCompound

public boolean isCompound()

Description copied from interface: Proposition

Indicates whether this Proposition can have children.

Specified by:

isCompound in interface Proposition

Returns:

true if this Proposition can contain child Propositions.