org.apache.hadoop.hbase.client

Class PerClientRandomNonceGenerator

java.lang.Object

org.apache.hadoop.hbase.client.PerClientRandomNonceGenerator

All Implemented Interfaces:

NonceGenerator

@InterfaceAudience.Private
public final class PerClientRandomNonceGenerator
extends Object
implements NonceGenerator

NonceGenerator implementation that uses client ID hash + random int as nonce group, and random numbers as nonces.

Field Summary

Fields

Modifier and Type	Field and Description
private long	clientId
private static PerClientRandomNonceGenerator	INST
private Random	rdm

Fields inherited from interface org.apache.hadoop.hbase.client.NonceGenerator

CLIENT_NONCES_ENABLED_KEY

Constructor Summary

Constructors

Modifier	Constructor and Description
private	PerClientRandomNonceGenerator()

Method Summary

Modifier and Type	Method and Description
static PerClientRandomNonceGenerator	get() Get the singleton nonce generator.
long	getNonceGroup()
long	newNonce()

Methods inherited from class java.lang.Object

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

Field Detail

INST

private static final PerClientRandomNonceGenerator INST

rdm

private final Random rdm

clientId

private final long clientId

Constructor Detail

PerClientRandomNonceGenerator

private PerClientRandomNonceGenerator()

Method Detail

getNonceGroup

public long getNonceGroup()

Specified by:

getNonceGroup in interface NonceGenerator

Returns:

the nonce group (client ID) of this client manager.

newNonce

public long newNonce()

Specified by:

newNonce in interface NonceGenerator

Returns:

New nonce.

get

public static PerClientRandomNonceGenerator get()

Get the singleton nonce generator.