net.sf.tweety.agents.dialogues.structured

Class IndicatorUtilityFunction

java.lang.Object

net.sf.tweety.agents.dialogues.structured.IndicatorUtilityFunction

All Implemented Interfaces:

UtilityFunction

public class IndicatorUtilityFunction
extends java.lang.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

Field Summary

Fields

Modifier and Type	Field and Description
private Proposition	focalElement The focal element of this function.

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

focalElement

private Proposition focalElement

The focal element of this function.

Constructor Detail

IndicatorUtilityFunction

public IndicatorUtilityFunction(Proposition focalElement)

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

Parameters:

focalElement - a proposition.

Method Detail

rank

public int rank(java.util.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 java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object