FollowerContext (Hekate 4.0.0)

All Superinterfaces:

HekateSupport
```
public interface FollowerContext
extends HekateSupport
```
Follower state context for Candidate.
For more details about the leader election process please see the documentation of ElectionService interface.

See Also:

Candidate.becomeFollower(FollowerContext)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addListener(LeaderChangeListener listener)`	Registers the leader change event listener.
`ClusterNode`	`leader()`	Returns a node that is currently holding the leadership.
`ClusterNode`	`localNode()`	Returns the local node where the `Candidate` is running.
`boolean`	`removeListener(LeaderChangeListener listener)`	Unregisters the specified listener if it was previously registered via `addListener(LeaderChangeListener)`.

Methods inherited from interface io.hekate.core.HekateSupport
hekate

- Method Detail
  - leader
```
ClusterNode leader()
```
    Returns a node that is currently holding the leadership.
    
    Returns:
    
    Leader node.
  - localNode
```
ClusterNode localNode()
```
    Returns the local node where the Candidate is running.
    
    Returns:
    
    Local node.
  - addListener
```
void addListener(LeaderChangeListener listener)
```
    Registers the leader change event listener.
    The specified listener will be notified every time when some other node becomes a new leader.
    
    This listener will be kept registered only while candidate stays in the follower state. Listener will be automatically unregistered when candidate switches to the leader state.
    
    Parameters:
    
    listener - Listener.
  - removeListener
```
boolean removeListener(LeaderChangeListener listener)
```
    Unregisters the specified listener if it was previously registered via addListener(LeaderChangeListener).
    
    Parameters:
    
    listener - Listener.
    
    Returns:
    
    true if listener was removed.