Package com.orientechnologies.orient.server.distributed.impl.lock

Class OTxPromiseManager<T>

java.lang.Object

com.orientechnologies.orient.server.distributed.impl.lock.OTxPromiseManager<T>

public class OTxPromiseManager<T>
extends Object

A promise manager keeps track of promises required for distributed transactions on a node.

Constructor Summary

Constructors

Constructor	Description
OTxPromiseManager()

Method Summary

Modifier and Type	Method	Description
OTransactionId	promise(T key, int version, OTransactionId txId, boolean force)
void	release(T key, OTransactionId txId)
void	reset()
long	size()

Methods inherited from class java.lang.Object

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

Constructor Details

OTxPromiseManager

public OTxPromiseManager()

Method Details

promise

public OTransactionId promise(T key,
 int version,
 OTransactionId txId,
 boolean force)

Parameters:

key -

version -

txId -

force - allows a tx to acquire the promise even if it is held by another tx. It must be used only in the second phase.

Returns:

if using force, returns the ID of the tx that was previously holding the promise.

release

public void release(T key,
 OTransactionId txId)

reset

public void reset()

size

public long size()