bitronix.tm.resource.jdbc.lrc

Class LrcXAResource

java.lang.Object

bitronix.tm.resource.jdbc.lrc.LrcXAResource

All Implemented Interfaces:

XAResource

public class LrcXAResource
extends Object
implements XAResource

XAResource implementation for a non-XA JDBC connection emulating XA with Last Resource Commit.

The XA protocol flow is implemented by this state machine:

 NO_TX
   |
   | start(TMNOFLAGS)
   |
   |       end(TMFAIL)
 STARTED -------------- NO_TX
   |
   | end(TMSUCCESS)
   |
   |    start(TMJOIN)
 ENDED ---------------- STARTED
   |\
   | \  commit (one phase)
   |  ----------------- NO_TX
   |
   | prepare()
   |
   |       commit() or
   |       rollback()
 PREPARED ------------- NO_TX
 

XAResource.TMSUSPEND and XAResource.TMRESUME are not supported.

Author:

Ludovic Orban

Field Summary

Fields

Modifier and Type	Field and Description
static int	ENDED
static int	NO_TX
static int	PREPARED
static int	STARTED

Fields inherited from interface javax.transaction.xa.XAResource

TMENDRSCAN, TMFAIL, TMJOIN, TMNOFLAGS, TMONEPHASE, TMRESUME, TMSTARTRSCAN, TMSUCCESS, TMSUSPEND, XA_OK, XA_RDONLY

Constructor Summary

Constructors

Constructor and Description
LrcXAResource(Connection connection)

Method Summary

Modifier and Type	Method and Description
void	commit(Xid xid, boolean onePhase)
void	end(Xid xid, int flag)
void	forget(Xid xid)
int	getState()
int	getTransactionTimeout()
boolean	isSameRM(XAResource xaResource)
int	prepare(Xid xid)
Xid[]	recover(int flags)
void	rollback(Xid xid)
boolean	setTransactionTimeout(int seconds)
void	start(Xid xid, int flag)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NO_TX

public static final int NO_TX

See Also:

Constant Field Values

STARTED

public static final int STARTED

See Also:

Constant Field Values

ENDED

public static final int ENDED

See Also:

Constant Field Values

PREPARED

public static final int PREPARED

See Also:

Constant Field Values

Constructor Detail

LrcXAResource

public LrcXAResource(Connection connection)

Method Detail

getState

public int getState()

getTransactionTimeout

public int getTransactionTimeout()
                          throws XAException

Specified by:

getTransactionTimeout in interface XAResource

Throws:

XAException

setTransactionTimeout

public boolean setTransactionTimeout(int seconds)
                              throws XAException

Specified by:

setTransactionTimeout in interface XAResource

Throws:

XAException

forget

public void forget(Xid xid)
            throws XAException

Specified by:

forget in interface XAResource

Throws:

XAException

recover

public Xid[] recover(int flags)
              throws XAException

Specified by:

recover in interface XAResource

Throws:

XAException

isSameRM

public boolean isSameRM(XAResource xaResource)
                 throws XAException

Specified by:

isSameRM in interface XAResource

Throws:

XAException

start

public void start(Xid xid,
                  int flag)
           throws XAException

Specified by:

start in interface XAResource

Throws:

XAException

end

public void end(Xid xid,
                int flag)
         throws XAException

Specified by:

end in interface XAResource

Throws:

XAException

prepare

public int prepare(Xid xid)
            throws XAException

Specified by:

prepare in interface XAResource

Throws:

XAException

commit

public void commit(Xid xid,
                   boolean onePhase)
            throws XAException

Specified by:

commit in interface XAResource

Throws:

XAException

rollback

public void rollback(Xid xid)
              throws XAException

Specified by:

rollback in interface XAResource

Throws:

XAException

toString

public String toString()

Overrides:

toString in class Object