org.apache.flink.runtime.webmonitor

Class ExecutionGraphHolder

java.lang.Object

org.apache.flink.runtime.webmonitor.ExecutionGraphHolder

public class ExecutionGraphHolder
extends Object

Gateway to obtaining an ExecutionGraph from a source, like JobManager or Archive.

The holder will cache the ExecutionGraph behind a weak reference, which will be cleared at some point once no one else is pointing to the ExecutionGraph. Note that while the holder runs in the same JVM as the JobManager or Archive, the reference should stay valid.

Constructor Summary

Constructors

Constructor and Description
ExecutionGraphHolder()
ExecutionGraphHolder(scala.concurrent.duration.FiniteDuration timeout)

Method Summary

Methods

Modifier and Type	Method and Description
AccessExecutionGraph	getExecutionGraph(org.apache.flink.api.common.JobID jid, ActorGateway jobManager) Retrieves the execution graph with JobID jid or null if it cannot be found.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionGraphHolder

public ExecutionGraphHolder()

ExecutionGraphHolder

public ExecutionGraphHolder(scala.concurrent.duration.FiniteDuration timeout)

Method Detail

getExecutionGraph

public AccessExecutionGraph getExecutionGraph(org.apache.flink.api.common.JobID jid,
                                     ActorGateway jobManager)

Retrieves the execution graph with JobID jid or null if it cannot be found.

Parameters:

jid - jobID of the execution graph to be retrieved

Returns:

the retrieved execution graph or null if it is not retrievable