Package io.github.oliviercailloux.j_voting.preferences.classes

Class ImmutableLinearPreferenceImpl

java.lang.Object

io.github.oliviercailloux.j_voting.preferences.classes.ImmutableLinearPreferenceImpl

All Implemented Interfaces:

ImmutableCompletePreference, ImmutableLinearPreference, ImmutablePreference, Preference

public class ImmutableLinearPreferenceImpl
extends Object
implements ImmutableLinearPreference

Method Summary

Modifier and Type	Method	Description
ImmutableList<ImmutableSet<Alternative>>	asEquivalenceClasses()
ImmutableGraph<Alternative>	asGraph()	In the graph : a relation from a to b means "a is at least as good as b".
ImmutableList<Alternative>	asList()	Best alternatives coming first in the list.
boolean	equals(Object o2)
ImmutableSet<Alternative>	getAlternatives()	The returned set reads through this object: if this object is mutable, any modification to this object modifies the returned set, and conversely.
ImmutableSet<Alternative>	getAlternatives(int rank)
int	getRank(Alternative a)	The rank of an alternative is one plus the number of alternatives strictly preferred to it.
Voter	getVoter()
static ImmutableLinearPreference	given(Voter voter, List<Alternative> list)	Best first
static ImmutableLinearPreference	given(List<Alternative> list)	Best first
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

given

public static ImmutableLinearPreference given(List<Alternative> list)

Best first

given

public static ImmutableLinearPreference given(Voter voter,
                                              List<Alternative> list)

Best first

getVoter

public Voter getVoter()

Specified by:

getVoter in interface Preference

Returns:

Voter instance of the preference, Returns the voter 0 if no specific voter is associated to this preference

getAlternatives

public ImmutableSet<Alternative> getAlternatives()

Description copied from interface: ImmutablePreference

The returned set reads through this object: if this object is mutable, any modification to this object modifies the returned set, and conversely. This set is immutable.

Specified by:

getAlternatives in interface ImmutablePreference

Specified by:

getAlternatives in interface Preference

Returns:

alternatives's set

asList

public ImmutableList<Alternative> asList()

Description copied from interface: ImmutableLinearPreference

Best alternatives coming first in the list.

Specified by:

asList in interface ImmutableLinearPreference

Returns:

a sorted list of alternatives corresponding to the preference.

getRank

public int getRank(Alternative a)

Description copied from interface: ImmutableCompletePreference

The rank of an alternative is one plus the number of alternatives strictly preferred to it.

Specified by:

getRank in interface ImmutableCompletePreference

Parameters:

a - is an Alternative

Returns:

the rank of this alternative (a number between 1 and n) where n is the total number of Alternative instances.

getAlternatives

public ImmutableSet<Alternative> getAlternatives(int rank)

Specified by:

getAlternatives in interface ImmutableCompletePreference

Parameters:

rank - at least 1.

Returns:

the Aternative set at this rank. Empty set id there is no alternative at this rank.

asEquivalenceClasses

public ImmutableList<ImmutableSet<Alternative>> asEquivalenceClasses()

Specified by:

asEquivalenceClasses in interface ImmutableCompletePreference

Returns:

Same data but in an Immutable list object A set of alternative is strictly prefered to next sets. All the alternatives in a set are considered ex-aequo.

asGraph

public ImmutableGraph<Alternative> asGraph()

Description copied from interface: ImmutablePreference

In the graph : a relation from a to b means "a is at least as good as b". This graph can’t be modified, but is not necessarily immutable. Reflexive and transitive. This graph is immutable.

Specified by:

asGraph in interface ImmutablePreference

Specified by:

asGraph in interface Preference

Returns:

the Graph corresponding to the Preference.

equals

public boolean equals(Object o2)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object