aima.core.probability.domain

Interface FiniteDomain

All Superinterfaces:

DiscreteDomain, Domain

All Known Implementing Classes:

AbstractFiniteDomain, ArbitraryTokenDomain, BooleanDomain, FiniteIntegerDomain

public interface FiniteDomain
extends DiscreteDomain

A Domain over a countable/discrete and finite set of objects.

Author:

Ciaran O'Reilly

Method Summary

Modifier and Type	Method and Description
int	getOffset(java.lang.Object value) The possible values for a finite domain are to have a consistent ordering (whether they are actually ordered by value or not).
java.util.Set<? extends java.lang.Object>	getPossibleValues()
java.lang.Object	getValueAt(int offset)

Methods inherited from interface aima.core.probability.domain.Domain

isFinite, isInfinite, isOrdered, size

Method Detail

getPossibleValues

java.util.Set<? extends java.lang.Object> getPossibleValues()

Returns:

a consistent ordered Set (e.g. LinkedHashSet) of the possible values this domain can take on.

getOffset

int getOffset(java.lang.Object value)

The possible values for a finite domain are to have a consistent ordering (whether they are actually ordered by value or not). This will return an offset into that ordering.

Parameters:

value - a value from the domain.

Returns:

an offset (starting from 0) into the consistent order of the set of possible values.

Throws:

java.lang.IllegalArgumentException - if the value is not valid for the domain.

getValueAt

java.lang.Object getValueAt(int offset)

Parameters:

offset - an offset into the consistent ordering for this domain.

Returns:

the Object at the specified offset in this domains consistent ordered set of values. null if the offset does not index the domain correctly.