org.infinispan.transaction.xa

Class DldGlobalTransaction

java.lang.Object

org.infinispan.transaction.xa.GlobalTransaction

org.infinispan.transaction.xa.DldGlobalTransaction

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

RecoveryAwareDldGlobalTransaction

public class DldGlobalTransaction
extends GlobalTransaction

This class is used when deadlock detection is enabled.

Author:

Mircea.Markus@jboss.com

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DldGlobalTransaction.Externalizer

Nested classes/interfaces inherited from class org.infinispan.transaction.xa.GlobalTransaction

GlobalTransaction.AbstractGlobalTxExternalizer<T extends GlobalTransaction>

Field Summary

Fields

Modifier and Type	Field and Description
protected long	coinToss
protected Object	localLockIntention
protected Set<Object>	locksAtOrigin
protected Collection<Object>	remoteLockIntention

Fields inherited from class org.infinispan.transaction.xa.GlobalTransaction

addr, id

Constructor Summary

Constructors

Constructor and Description
DldGlobalTransaction()
DldGlobalTransaction(Address addr, boolean remote)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
long	getCoinToss()
Object	getLockIntention() Returns the key this transaction intends to lock.
Set<Object>	getLocksHeldAtOrigin()
Collection<Object>	getRemoteLockIntention()
int	hashCode()
boolean	hasLockAtOrigin(Collection<Object> remoteLockIntention)
void	setCoinToss(long coinToss) Sets the random number that defines the coin toss.
void	setLockIntention(Object lockIntention)
void	setLocksHeldAtOrigin(Set<Object> locksAtOrigin)
void	setRemoteLockIntention(Collection<Object> remoteLockIntention)
String	toString()
boolean	wouldLose(DldGlobalTransaction other)

Methods inherited from class org.infinispan.transaction.xa.GlobalTransaction

clone, getAddress, getId, globalId, isRemote, setAddress, setId, setRemote

Methods inherited from class java.lang.Object

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

Field Detail

coinToss

protected volatile long coinToss

localLockIntention

protected transient volatile Object localLockIntention

remoteLockIntention

protected volatile Collection<Object> remoteLockIntention

locksAtOrigin

protected volatile Set<Object> locksAtOrigin

Constructor Detail

DldGlobalTransaction

public DldGlobalTransaction()

DldGlobalTransaction

public DldGlobalTransaction(Address addr,
                    boolean remote)

Method Detail

setCoinToss

public void setCoinToss(long coinToss)

Sets the random number that defines the coin toss. A coin toss is a random number that is used when a deadlock is detected for deciding which transaction should commit and which should rollback.

getCoinToss

public long getCoinToss()

equals

public boolean equals(Object o)

Overrides:

equals in class GlobalTransaction

hashCode

public int hashCode()

Overrides:

hashCode in class GlobalTransaction

toString

public String toString()

Overrides:

toString in class GlobalTransaction

getLockIntention

public Object getLockIntention()

Returns the key this transaction intends to lock.

setLockIntention

public void setLockIntention(Object lockIntention)

wouldLose

public boolean wouldLose(DldGlobalTransaction other)

setRemoteLockIntention

public void setRemoteLockIntention(Collection<Object> remoteLockIntention)

getRemoteLockIntention

public Collection<Object> getRemoteLockIntention()

hasLockAtOrigin

public boolean hasLockAtOrigin(Collection<Object> remoteLockIntention)

setLocksHeldAtOrigin

public void setLocksHeldAtOrigin(Set<Object> locksAtOrigin)

getLocksHeldAtOrigin

public Set<Object> getLocksHeldAtOrigin()