jess
Class Activation

java.lang.Object
  jess.Activation

All Implemented Interfaces:

java.io.Serializable

public class Activation

extends java.lang.Object

implements java.io.Serializable

A list of facts that satisfy a rule. An activation contains enough info to bind a rule's variables. You might use this class if you're writing your own Strategy implementation, or in a JessListener implementation.

(C) 2005 Sandia National Laboratories

See Also:

Strategy, JessListener, Serialized Form

Method Summary

boolean	equals(java.lang.Object o) Compare this object to another Activation.
Defrule	getRule() Return the activated rule.
int	getSalience() Evaluate and return the current salience for the rule referenced in this activation.
Token	getToken() Get the Rete network Token that caused this Activation.
boolean	isInactive() Query if this activation has been cancelled, or false if it is valid.
java.lang.String	toString() Produce a string representation of this Activation for use in debugging.

Methods inherited from class java.lang.Object

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

Method Detail

getToken

public final Token getToken()

Get the Rete network Token that caused this Activation.

Returns:

The token.

getRule

public final Defrule getRule()

Return the activated rule.

Returns:

The rule.

isInactive

public boolean isInactive()

Query if this activation has been cancelled, or false if it is valid.

Returns:

True if this activation has been cancelled.

getSalience

public int getSalience()

Evaluate and return the current salience for the rule referenced in this activation.

Returns:

The salience value.

equals

public boolean equals(java.lang.Object o)

Compare this object to another Activation.

Parameters:

o - The Activation to compare to.

toString

public java.lang.String toString()

Produce a string representation of this Activation for use in debugging.

Returns:

The string representation