Package org.apache.hadoop.yarn.event

Interface Event<TYPE extends java.lang.Enum<TYPE>>

All Known Implementing Classes:

AbstractEvent, NodeLabelsStoreEvent, RemoveClusterNodeLabels, StoreNewClusterNodeLabels, UpdateNodeToLabelsMappingsEvent

@Public
@Evolving
public interface Event<TYPE extends java.lang.Enum<TYPE>>

Interface defining events api.

Method Summary

Modifier and Type	Method	Description
default java.lang.String	getLockKey()	In case of parallel execution of events in the same dispatcher, the result of this method will be used as semaphore.
long	getTimestamp()
TYPE	getType()
java.lang.String	toString()

Method Detail

getType

TYPE getType()

getTimestamp

long getTimestamp()

toString

java.lang.String toString()

Overrides:

toString in class java.lang.Object

getLockKey

default java.lang.String getLockKey()

In case of parallel execution of events in the same dispatcher, the result of this method will be used as semaphore. If method returns null, then a default semaphore will be used.

Returns:

the semaphore