Package org.tweetyproject.agents.dialogues.structured

Class IndicatorUtilityFunction

java.lang.Object

org.tweetyproject.agents.dialogues.structured.IndicatorUtilityFunction

All Implemented Interfaces:

UtilityFunction

public class IndicatorUtilityFunction
extends Object
implements UtilityFunction

This class represents an indicator utility function, i.e. a function that ranks a set of propositions to 1 if this function's focal element is part of the set, and 0 otherwise.

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor	Description
IndicatorUtilityFunction(Proposition focalElement)	Creates a new indicator utility function for the given focal element.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	hashCode()
int	rank(Collection<? extends Proposition> propositions)	Rank the given collection of propositions.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IndicatorUtilityFunction

public IndicatorUtilityFunction(Proposition focalElement)

Creates a new indicator utility function for the given focal element.

Parameters:

focalElement - a proposition.

Method Details

rank

public int rank(Collection<? extends Proposition> propositions)

Description copied from interface: UtilityFunction

Rank the given collection of propositions. A set S is preferred to a set T if rank(S)>rank(T).

Specified by:

rank in interface UtilityFunction

Parameters:

propositions - a collection of propositions.

Returns:

the rank of the given collection.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object