org.apache.flink.runtime.scheduler

Class DefaultVertexParallelismStore

java.lang.Object

org.apache.flink.runtime.scheduler.DefaultVertexParallelismStore

All Implemented Interfaces:

MutableVertexParallelismStore, VertexParallelismStore

public class DefaultVertexParallelismStore
extends Object
implements MutableVertexParallelismStore

Maintains the configured parallelisms for vertices, which should be defined by a scheduler.

Constructor Summary

Constructors

Constructor and Description
DefaultVertexParallelismStore()

Method Summary

Modifier and Type	Method and Description
static Optional<VertexParallelismStore>	applyJobResourceRequirements(VertexParallelismStore oldVertexParallelismStore, JobResourceRequirements jobResourceRequirements) Create a new VertexParallelismStore that reflects given JobResourceRequirements.
VertexParallelismInformation	getParallelismInfo(JobVertexID vertexId) Returns a given vertex's parallelism information.
void	setParallelismInfo(JobVertexID vertexId, VertexParallelismInformation info) Sets the parallelism properties for the given vertex.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultVertexParallelismStore

public DefaultVertexParallelismStore()

Method Detail

applyJobResourceRequirements

public static Optional<VertexParallelismStore> applyJobResourceRequirements(VertexParallelismStore oldVertexParallelismStore,
                                                                            JobResourceRequirements jobResourceRequirements)

Create a new VertexParallelismStore that reflects given JobResourceRequirements.

Parameters:

oldVertexParallelismStore - old vertex parallelism store that serves as a base for the new one

jobResourceRequirements - to apply over the old vertex parallelism store

Returns:

new vertex parallelism store iff it was updated

setParallelismInfo

public void setParallelismInfo(JobVertexID vertexId,
                               VertexParallelismInformation info)

Description copied from interface: MutableVertexParallelismStore

Sets the parallelism properties for the given vertex.

Specified by:

setParallelismInfo in interface MutableVertexParallelismStore

Parameters:

vertexId - vertex to set parallelism for

info - parallelism information for the given vertex

getParallelismInfo

public VertexParallelismInformation getParallelismInfo(JobVertexID vertexId)

Description copied from interface: VertexParallelismStore

Returns a given vertex's parallelism information.

Specified by:

getParallelismInfo in interface VertexParallelismStore

Parameters:

vertexId - vertex for which the parallelism information should be returned

Returns:

a parallelism information for the given vertex