org.apache.flink.runtime.jobmaster

Class JobMasterId

java.lang.Object

org.apache.flink.util.AbstractID

org.apache.flink.runtime.jobmaster.JobMasterId

All Implemented Interfaces:

Serializable, Comparable<AbstractID>

public class JobMasterId
extends AbstractID

The JobMaster fencing token.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.util.AbstractID

lowerPart, SIZE, upperPart

Constructor Summary

Constructors

Constructor and Description
JobMasterId(UUID uuid) Creates a JobMasterId that takes the bits from the given UUID.

Method Summary

Modifier and Type	Method and Description
static JobMasterId	fromUuidOrNull(UUID uuid) If the given uuid is null, this returns null, otherwise a JobMasterId that corresponds to the UUID, via JobMasterId(UUID).
static JobMasterId	generate() Generates a new random JobMasterId.
UUID	toUUID() Creates a UUID with the bits from this JobMasterId.

Methods inherited from class org.apache.flink.util.AbstractID

compareTo, equals, getBytes, getLowerPart, getUpperPart, hashCode, toHexString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

JobMasterId

public JobMasterId(UUID uuid)

Creates a JobMasterId that takes the bits from the given UUID.

Method Detail

toUUID

public UUID toUUID()

Creates a UUID with the bits from this JobMasterId.

generate

public static JobMasterId generate()

Generates a new random JobMasterId.

fromUuidOrNull

public static JobMasterId fromUuidOrNull(@Nullable
                                         UUID uuid)

If the given uuid is null, this returns null, otherwise a JobMasterId that corresponds to the UUID, via JobMasterId(UUID).