org.apache.flink.runtime.event.job

Class VertexAssignmentEvent

java.lang.Object

org.apache.flink.runtime.event.job.AbstractEvent

org.apache.flink.runtime.event.job.VertexAssignmentEvent

All Implemented Interfaces:

IOReadableWritable, ManagementEvent

public final class VertexAssignmentEvent
extends AbstractEvent
implements ManagementEvent

A VertexAssignmentEvent can be used to notify other objects about changes in the assignment of vertices to instances.

Constructor Summary

Constructors

Constructor and Description
VertexAssignmentEvent() Constructor for serialization/deserialization.
VertexAssignmentEvent(long timestamp, ManagementVertexID managementVertexID, String instanceName) Constructs a new event.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
String	getInstanceName() Returns the name of the instance the vertex is now assigned to.
ManagementVertexID	getVertexID() Returns the ID of the vertex this event refers to.
int	hashCode()
void	read(DataInputView in)
void	write(DataOutputView out)

Methods inherited from class org.apache.flink.runtime.event.job.AbstractEvent

getSequenceNumber, getTimestamp, timestampToString

Methods inherited from class java.lang.Object

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

Constructor Detail

VertexAssignmentEvent

public VertexAssignmentEvent(long timestamp,
                     ManagementVertexID managementVertexID,
                     String instanceName)

Constructs a new event.

Parameters:

timestamp - the timestamp of the event

managementVertexID - identifies the vertex this event refers to

instanceName - the name of the instance the vertex is now assigned to

VertexAssignmentEvent

public VertexAssignmentEvent()

Constructor for serialization/deserialization. Should not be called on other occasions.

Method Detail

getVertexID

public ManagementVertexID getVertexID()

Returns the ID of the vertex this event refers to.

Returns:

the ID of the vertex this event refers to

getInstanceName

public String getInstanceName()

Returns the name of the instance the vertex is now assigned to.

Returns:

the name of the instance the vertex is now assigned to

read

public void read(DataInputView in)
          throws IOException

Specified by:

read in interface IOReadableWritable

Overrides:

read in class AbstractEvent

Throws:

IOException

write

public void write(DataOutputView out)
           throws IOException

Specified by:

write in interface IOReadableWritable

Overrides:

write in class AbstractEvent

Throws:

IOException

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractEvent

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractEvent