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

Class ImmutablePreferenceImpl

java.lang.Object

io.github.oliviercailloux.j_voting.preferences.classes.ImmutablePreferenceImpl

All Implemented Interfaces:

ImmutablePreference, Preference

Direct Known Subclasses:

ImmutableAntiSymmetricPreferenceImpl

public class ImmutablePreferenceImpl
extends Object
implements ImmutablePreference

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ImmutablePreferenceImpl(Voter voter, Graph<Alternative> graph)

Method Summary

Modifier and Type	Method	Description
ImmutableGraph<Alternative>	asGraph()	In the graph : a relation from a to b means "a is at least as good as b".
static ImmutablePreference	asImmutablePreference(Voter voter, Graph<Alternative> graph)
ImmutableGraph<Alternative>	asIntransitiveGraph()
static ImmutablePreference	copyOf(Preference preference)	Transform Preference to ImmutablePreference
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.
Voter	getVoter()

Methods inherited from class java.lang.Object

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

Constructor Detail

ImmutablePreferenceImpl

protected ImmutablePreferenceImpl(Voter voter,
                                  Graph<Alternative> graph)

Parameters:

voter - not null

graph - not null graph with ordered Alternatives

Method Detail

asImmutablePreference

public static ImmutablePreference asImmutablePreference(Voter voter,
                                                        Graph<Alternative> graph)

Parameters:

voter - not null

graph - not null graph with ordered Alternatives

Returns:

new ImmutablePreference

copyOf

public static ImmutablePreference copyOf(Preference preference)

Transform Preference to ImmutablePreference

Parameters:

preference - not null

Returns:

ImmutablePreference

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.

asIntransitiveGraph

public ImmutableGraph<Alternative> asIntransitiveGraph()

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

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