Package jadex.rules.rulesystem.rete.constraints

Class AndConstraintEvaluator

java.lang.Object

jadex.rules.rulesystem.rete.constraints.AndConstraintEvaluator

All Implemented Interfaces:

IConstraintEvaluator

public class AndConstraintEvaluator
extends java.lang.Object
implements IConstraintEvaluator

A constraint evaluator for and-connected constraints.

Field Summary

Fields

Modifier and Type	Field	Description
protected IConstraintEvaluator[]	evaluators	The constraint evaluator.

Constructor Summary

Constructors

Constructor	Description
AndConstraintEvaluator(IConstraintEvaluator[] evaluators)	Create an AND constraint evaluator.

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object obj)	Test for equality.
boolean	evaluate(java.lang.Object right, Tuple left, IOAVState state)	Evaluate the constraints given the right object, left tuple (null for alpha nodes) and the state.
IConstraintEvaluator[]	getConstraintEvaluators()	Get the constraint evaluators.
AttributeSet	getIndirectAttributes()	Get the set of indirect attribute types.
AttributeSet	getRelevantAttributes()	Get the set of relevant attribute types.
int	hashCode()	The hash code.
boolean	isAffected(int tupleindex, OAVAttributeType attr)	Test if a constraint evaluator is affected from a change of a certain attribute.
java.lang.String	toString()	Get the string representation.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

evaluators

protected final IConstraintEvaluator[] evaluators

The constraint evaluator.

Constructor Detail

AndConstraintEvaluator

public AndConstraintEvaluator(IConstraintEvaluator[] evaluators)

Create an AND constraint evaluator.

Method Detail

evaluate

public boolean evaluate(java.lang.Object right,
                        Tuple left,
                        IOAVState state)

Evaluate the constraints given the right object, left tuple (null for alpha nodes) and the state.

Specified by:

evaluate in interface IConstraintEvaluator

Parameters:

right - The right input object.

left - The left input tuple.

state - The working memory.

isAffected

public boolean isAffected(int tupleindex,
                          OAVAttributeType attr)

Test if a constraint evaluator is affected from a change of a certain attribute.

Specified by:

isAffected in interface IConstraintEvaluator

Parameters:

tupleindex - The tuple index.

attr - The attribute.

Returns:

True, if affected.

getRelevantAttributes

public AttributeSet getRelevantAttributes()

Get the set of relevant attribute types.

Specified by:

getRelevantAttributes in interface IConstraintEvaluator

getIndirectAttributes

public AttributeSet getIndirectAttributes()

Get the set of indirect attribute types. I.e. attributes of objects, which are not part of an object conditions (e.g. for chained extractors)

Specified by:

getIndirectAttributes in interface IConstraintEvaluator

Returns:

The relevant attribute types.

toString

public java.lang.String toString()

Get the string representation.

Overrides:

toString in class java.lang.Object

Returns:

The string representation.

getConstraintEvaluators

public IConstraintEvaluator[] getConstraintEvaluators()

Get the constraint evaluators.

hashCode

public int hashCode()

The hash code.

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Test for equality.

Overrides:

equals in class java.lang.Object