Package net.sf.tweety.logics.cl.kappa

Class KappaValue

java.lang.Object

net.sf.tweety.logics.cl.kappa.KappaValue

All Implemented Interfaces:

KappaTerm

public class KappaValue
extends Object
implements KappaTerm

Represents a Kappa-Value for the c-revision, it contains two KappaMin instances, both KappaValue and KappaMin implement the KappaTerm interface. Internally the value of the Kappa is represented using an integer and as long as the Kappa cannot be evaluated correctly its value member is -1.

Author:

Tim Janus

Constructor Summary

Constructors

Constructor	Description
KappaValue(int index, Conditional cond)	Ctor: Generates a kappa value for the given Conditional with the given index.

Method Summary

Modifier and Type	Method	Description
boolean	evaluate()	Tries to evaluate the kappa term, if the evaluation is successful then the next call of value returns the evaluated value.
String	fullString()
Set<KappaTerm>	getSubTerms()	Processes all the sub-terms
int	greaterEqualThan()
String	toString()
int	value()

Methods inherited from class java.lang.Object

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

Constructor Detail

KappaValue

public KappaValue(int index,
                  Conditional cond)

Ctor: Generates a kappa value for the given Conditional with the given index.

Parameters:

index - an int

cond - some conditional

Method Detail

evaluate

public boolean evaluate()

Description copied from interface: KappaTerm

Tries to evaluate the kappa term, if the evaluation is successful then the next call of value returns the evaluated value.

Specified by:

evaluate in interface KappaTerm

Returns:

True if the evaluation is sucessful, false otherwise

value

public int value()

Specified by:

value in interface KappaTerm

Returns:

The value of this kappa term or -1 if the kappa-term's evaluate() method returns false.

greaterEqualThan

public int greaterEqualThan()

Specified by:

greaterEqualThan in interface KappaTerm

Returns:

The minimum value of this kappa term, such that the caller knows the kappa term is greater or equal the returned value.

toString

public String toString()

Overrides:

toString in class Object

fullString

public String fullString()

getSubTerms

public Set<KappaTerm> getSubTerms()

Description copied from interface: KappaTerm

Processes all the sub-terms

Specified by:

getSubTerms in interface KappaTerm

Returns:

A set containing all the sub-terms of the kappa term