StandaloneLeaderRetrievalService (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.runtime.leaderretrieval.StandaloneLeaderRetrievalService

All Implemented Interfaces:

LeaderRetrievalService
```
public class StandaloneLeaderRetrievalService
extends Object
implements LeaderRetrievalService
```
Standalone implementation of the LeaderRetrievalService. This implementation assumes that there is only a single contender for leadership (e.g., a single JobManager or ResourceManager process) and that this process is reachable under a constant address.
As soon as this service is started, it immediately notifies the leader listener of the leader contender with the pre-configured address.

Constructor Summary

Constructors
Constructor	Description
`StandaloneLeaderRetrievalService(String leaderAddress)`	Deprecated. Use `StandaloneLeaderRetrievalService(String, UUID)` instead
`StandaloneLeaderRetrievalService(String leaderAddress, UUID leaderId)`	Creates a StandaloneLeaderRetrievalService with the given leader address.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`start(LeaderRetrievalListener listener)`	Starts the leader retrieval service with the given listener to listen for new leaders.
`void`	`stop()`	Stops the leader retrieval service.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - StandaloneLeaderRetrievalService
```
@Deprecated
public StandaloneLeaderRetrievalService(String leaderAddress)
```
    Deprecated.
    Use StandaloneLeaderRetrievalService(String, UUID) instead
    
    Creates a StandaloneLeaderRetrievalService with the given leader address. The leaderId will be null.
    
    Parameters:
    
    leaderAddress - The leader's pre-configured address
  - StandaloneLeaderRetrievalService
```
public StandaloneLeaderRetrievalService(String leaderAddress,
                                        UUID leaderId)
```
    Creates a StandaloneLeaderRetrievalService with the given leader address.
    
    Parameters:
    
    leaderAddress - The leader's pre-configured address
    
    leaderId - The constant leaderId.
- Method Detail
  - start
```
public void start(LeaderRetrievalListener listener)
```
    Description copied from interface: LeaderRetrievalService
    
    Starts the leader retrieval service with the given listener to listen for new leaders. This method can only be called once.
    
    Specified by:
    
    start in interface LeaderRetrievalService
    
    Parameters:
    
    listener - The leader retrieval listener which will be notified about new leaders.
  - stop
```
public void stop()
```
    Description copied from interface: LeaderRetrievalService
    
    Stops the leader retrieval service.
    
    Specified by:
    
    stop in interface LeaderRetrievalService