io.atomix.core.election

Class Leadership<T>

java.lang.Object

io.atomix.core.election.Leadership<T>

public class Leadership<T>
extends Object

State of leadership for topic.

Provided by this construct is the current leader and the list of memberIds currently registered as candidates for election for the topic. Keep in mind that only registered candidates can become leaders.

Constructor Summary

Constructors

Constructor and Description
Leadership(Leader<T> leader, List<T> candidates)

Method Summary

Modifier and Type	Method and Description
List<T>	candidates() Returns an preference-ordered list of nodes that are in the leadership race for this topic.
boolean	equals(Object obj)
int	hashCode()
Leader<T>	leader() Returns the leader for this topic.
<U> Leadership<U>	map(Function<T,U> mapper) Maps the leadership identifiers using the given mapper.
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Leadership

public Leadership(Leader<T> leader,
                  List<T> candidates)

Method Detail

leader

public Leader<T> leader()

Returns the leader for this topic.

Returns:

leader; will be null if there is no leader for topic

candidates

public List<T> candidates()

Returns an preference-ordered list of nodes that are in the leadership race for this topic.

Returns:

a list of NodeIds in priority-order, or an empty list.

map

public <U> Leadership<U> map(Function<T,U> mapper)

Maps the leadership identifiers using the given mapper.

Type Parameters:

U - the converted identifier type

Parameters:

mapper - the mapper with which to convert identifiers

Returns:

the converted leadership

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object