Class IndicatorUtilityFunction
- java.lang.Object
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- net.sf.tweety.agents.dialogues.structured.IndicatorUtilityFunction
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- 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
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Constructor Summary
Constructors Constructor Description IndicatorUtilityFunction(Proposition focalElement)
Creates a new indicator utility function for the given focal element.
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Method Summary
Modifier and Type Method Description boolean
equals(java.lang.Object obj)
int
hashCode()
int
rank(java.util.Collection<? extends Proposition> propositions)
Rank the given collection of propositions.
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Constructor Detail
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IndicatorUtilityFunction
public IndicatorUtilityFunction(Proposition focalElement)
Creates a new indicator utility function for the given focal element.- Parameters:
focalElement
- a proposition.
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Method Detail
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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 interfaceUtilityFunction
- Parameters:
propositions
- a collection of propositions.- Returns:
- the rank of the given collection.
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in classjava.lang.Object
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