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

static class

DldGlobalTransaction.Externalizer

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

GlobalTransaction.AbstractGlobalTxExternalizer<T extends GlobalTransaction>

Field Summary

protected long	coinToss
protected boolean	isMarkedForRollback
protected Object	localLockIntention
protected Set<Object>	locksAtOrigin
protected Collection<Object>	remoteLockIntention

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

addr

Constructor Summary

DldGlobalTransaction()

DldGlobalTransaction(Address addr, boolean remote)

Method Summary

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)
boolean	isAcquiringRemoteLock(Object key, Address address)
boolean	isMarkedForRollback()
void	setCoinToss(long coinToss) Sets the random number that defines the coin toss.
void	setLockIntention(Object lockIntention)
void	setLocksHeldAtOrigin(Set<Object> locksAtOrigin)
void	setMarkedForRollback(boolean markedForRollback)
void	setRemoteLockIntention(Collection<Object> remoteLockIntention)
String	toString()
boolean	wouldLose(DldGlobalTransaction other)

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

clone, getAddress, getId, 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

isMarkedForRollback

protected volatile boolean isMarkedForRollback

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

isMarkedForRollback

public boolean isMarkedForRollback()

setMarkedForRollback

public void setMarkedForRollback(boolean markedForRollback)

getLockIntention

public Object getLockIntention()

Returns the key this transaction intends to lock.

setLockIntention

public void setLockIntention(Object lockIntention)

wouldLose

public boolean wouldLose(DldGlobalTransaction other)

isAcquiringRemoteLock

public boolean isAcquiringRemoteLock(Object key,
                                     Address address)

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()