Package jadex.rules.rulesystem.rete.constraints

Class NotConstraintEvaluator

java.lang.Object

jadex.rules.rulesystem.rete.constraints.NotConstraintEvaluator

All Implemented Interfaces:

IConstraintEvaluator

public class NotConstraintEvaluator
extends java.lang.Object
implements IConstraintEvaluator

A not constraint evaluator checks if the left tuple corresponds to the beginning of the right object, which also has to be a tuple.

Constructor Summary

Constructors

Constructor	Description
NotConstraintEvaluator()

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.
AttributeSet	getIndirectAttributes()	Get the set of indirect attribute types.
AttributeSet	getRelevantAttributes()	Get the set of relevant attribute types.
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, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NotConstraintEvaluator

public NotConstraintEvaluator()

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.

equals

public boolean equals(java.lang.Object obj)

Test for equality.

Overrides:

equals in class java.lang.Object