Package org.apache.flink.runtime.heartbeat

Class NoOpHeartbeatServices

java.lang.Object

org.apache.flink.runtime.heartbeat.NoOpHeartbeatServices

All Implemented Interfaces:

HeartbeatServices

public class NoOpHeartbeatServices
extends Object
implements HeartbeatServices

HeartbeatServices implementation which does nothing.

Method Summary

Modifier and Type	Method	Description
<I, O> HeartbeatManager<I,O>	createHeartbeatManager(ResourceID resourceId, HeartbeatListener<I,O> heartbeatListener, org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor, org.slf4j.Logger log)	Creates a heartbeat manager which does not actively send heartbeats.
<I, O> HeartbeatManager<I,O>	createHeartbeatManagerSender(ResourceID resourceId, HeartbeatListener<I,O> heartbeatListener, org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor, org.slf4j.Logger log)	Creates a heartbeat manager which actively sends heartbeats to monitoring targets.
static NoOpHeartbeatServices	getInstance()

Methods inherited from class java.lang.Object

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

Method Details

createHeartbeatManager

public <I,
O> HeartbeatManager<I,O> createHeartbeatManager(ResourceID resourceId,
 HeartbeatListener<I,O> heartbeatListener,
 org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor,
 org.slf4j.Logger log)

Description copied from interface: HeartbeatServices

Creates a heartbeat manager which does not actively send heartbeats.

Specified by:

createHeartbeatManager in interface HeartbeatServices

Type Parameters:

I - Type of the incoming payload

O - Type of the outgoing payload

Parameters:

resourceId - Resource Id which identifies the owner of the heartbeat manager

heartbeatListener - Listener which will be notified upon heartbeat timeouts for registered targets

mainThreadExecutor - Scheduled executor to be used for scheduling heartbeat timeouts

log - Logger to be used for the logging

Returns:

A new HeartbeatManager instance

createHeartbeatManagerSender

public <I,
O> HeartbeatManager<I,O> createHeartbeatManagerSender(ResourceID resourceId,
 HeartbeatListener<I,O> heartbeatListener,
 org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor,
 org.slf4j.Logger log)

Description copied from interface: HeartbeatServices

Creates a heartbeat manager which actively sends heartbeats to monitoring targets.

Specified by:

createHeartbeatManagerSender in interface HeartbeatServices

Type Parameters:

I - Type of the incoming payload

O - Type of the outgoing payload

Parameters:

resourceId - Resource Id which identifies the owner of the heartbeat manager

heartbeatListener - Listener which will be notified upon heartbeat timeouts for registered targets

mainThreadExecutor - Scheduled executor to be used for scheduling heartbeat timeouts and periodically send heartbeat requests

log - Logger to be used for the logging

Returns:

A new HeartbeatManager instance which actively sends heartbeats

getInstance

public static NoOpHeartbeatServices getInstance()