jta

Class JtaTxWriter

java.lang.Object

util.AbstractWriter

jta.JtaTxWriter

All Implemented Interfaces:

com.gemstone.gemfire.cache.CacheCallback, com.gemstone.gemfire.cache.TransactionWriter

public class JtaTxWriter
extends AbstractWriter
implements com.gemstone.gemfire.cache.TransactionWriter

A writer for handling transaction related events (beforeCommit). Note that RegionEvents are not transactional and are not handled by this writer. This is because they occur at the time of execution rather than at commit time.

See Also:

TransactionWriter

Field Summary

Fields inherited from class util.AbstractWriter

CntrName_BeforeCreate_isDist, CntrName_BeforeCreate_isExp, CntrName_BeforeCreate_isLoad, CntrName_BeforeCreate_isLocalLoad, CntrName_BeforeCreate_isNetLoad, CntrName_BeforeCreate_isNetSearch, CntrName_BeforeCreate_isNotDist, CntrName_BeforeCreate_isNotExp, CntrName_BeforeCreate_isNotLoad, CntrName_BeforeCreate_isNotLocalLoad, CntrName_BeforeCreate_isNotNetLoad, CntrName_BeforeCreate_isNotNetSearch, CntrName_BeforeCreate_isNotRemote, CntrName_BeforeCreate_isRemote, CntrName_BeforeDestroy_isDist, CntrName_BeforeDestroy_isExp, CntrName_BeforeDestroy_isLoad, CntrName_BeforeDestroy_isLocalLoad, CntrName_BeforeDestroy_isNetLoad, CntrName_BeforeDestroy_isNetSearch, CntrName_BeforeDestroy_isNotDist, CntrName_BeforeDestroy_isNotExp, CntrName_BeforeDestroy_isNotLoad, CntrName_BeforeDestroy_isNotLocalLoad, CntrName_BeforeDestroy_isNotNetLoad, CntrName_BeforeDestroy_isNotNetSearch, CntrName_BeforeDestroy_isNotRemote, CntrName_BeforeDestroy_isRemote, CntrName_BeforeRegionClear_isDist, CntrName_BeforeRegionClear_isExp, CntrName_BeforeRegionClear_isNotDist, CntrName_BeforeRegionClear_isNotExp, CntrName_BeforeRegionClear_isNotRemote, CntrName_BeforeRegionClear_isRemote, CntrName_BeforeRegionDestroy_isDist, CntrName_BeforeRegionDestroy_isExp, CntrName_BeforeRegionDestroy_isNotDist, CntrName_BeforeRegionDestroy_isNotExp, CntrName_BeforeRegionDestroy_isNotRemote, CntrName_BeforeRegionDestroy_isRemote, CntrName_BeforeUpdate_isDist, CntrName_BeforeUpdate_isExp, CntrName_BeforeUpdate_isLoad, CntrName_BeforeUpdate_isLocalLoad, CntrName_BeforeUpdate_isNetLoad, CntrName_BeforeUpdate_isNetSearch, CntrName_BeforeUpdate_isNotDist, CntrName_BeforeUpdate_isNotExp, CntrName_BeforeUpdate_isNotLoad, CntrName_BeforeUpdate_isNotLocalLoad, CntrName_BeforeUpdate_isNotNetLoad, CntrName_BeforeUpdate_isNotNetSearch, CntrName_BeforeUpdate_isNotRemote, CntrName_BeforeUpdate_isRemote, whereIWasRegistered

Constructor Summary

Constructors

Constructor and Description
JtaTxWriter()

Method Summary

Modifier and Type	Method and Description
void	beforeCommit(com.gemstone.gemfire.cache.TransactionEvent txEvent) Called after successful conflict checking (in GemFire) and prior to commit The TxWriter simply commits the work done in the dataBase earlier by the CacheWriter.
void	close() Called when the region containing this callback is destroyed, when the cache is closed, or when a callback is removed from a region using an AttributesMutator.
protected void	throwException(String errStr) Utility method to log an Exception, place it into a wellknown location in the EventBB and throw an exception.

Methods inherited from class util.AbstractWriter

getNewValueStr, getOldValueStr, incrementBeforeCreateCounters, incrementBeforeDestroyCounters, incrementBeforeRegionClearCounters, incrementBeforeRegionDestroyCounters, incrementBeforeUpdateCounters, logCall, logTxEvent, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

JtaTxWriter

public JtaTxWriter()

Method Detail

beforeCommit

public void beforeCommit(com.gemstone.gemfire.cache.TransactionEvent txEvent)
                  throws com.gemstone.gemfire.cache.TransactionWriterException

Called after successful conflict checking (in GemFire) and prior to commit The TxWriter simply commits the work done in the dataBase earlier by the CacheWriter.

Specified by:

beforeCommit in interface com.gemstone.gemfire.cache.TransactionWriter

Parameters:

txEvent - the TransactionEvent

Throws:

com.gemstone.gemfire.cache.TransactionWriterException

throwException

protected void throwException(String errStr)
                       throws com.gemstone.gemfire.cache.TransactionWriterException

Utility method to log an Exception, place it into a wellknown location in the EventBB and throw an exception.

Parameters:

errString - string to be logged, placed on EventBB and include in Exception

Throws:

TestException - containing the given string

com.gemstone.gemfire.cache.TransactionWriterException

See Also:

TestHelper.checkForEventError

close

public void close()

Called when the region containing this callback is destroyed, when the cache is closed, or when a callback is removed from a region using an AttributesMutator.

Specified by:

close in interface com.gemstone.gemfire.cache.CacheCallback