Class EndXact

java.lang.Object

org.apache.derby.impl.store.raw.xact.EndXact

All Implemented Interfaces:

Externalizable, Serializable, Formatable, TypedFormat, Loggable

public class EndXact
extends Object
implements Loggable

This operation indicates the End of a transaction.

See Also:

• Loggable
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private int	transactionStatus
private GlobalTransactionId	xactId

Fields inherited from interface Loggable

ABORT, BI_LOG, CHECKSUM, COMMIT, COMPENSATION, FILE_RESOURCE, FIRST, LAST, PREPARE, RAWSTORE, XA_NEEDLOCK

Constructor Summary

Constructors

Constructor	Description
EndXact()
EndXact(GlobalTransactionId xid, int s)

Method Summary

Modifier and Type	Method	Description
void	doMe(Transaction xact, LogInstant instant, LimitObjectInput in)	Apply the change indicated by this operation and optional data.
ByteArray	getPreparedLog()	the default for prepared log is always null for all the operations that don't have optionalData.
int	getTypeFormatId()	Return my format identifier.
int	group()	EndXact is a RAWSTORE log record.
boolean	needsRedo(Transaction xact)	Always redo an EndXact.
void	readExternal(ObjectInput in)
void	releaseResource(Transaction xact)	EndXact has no resource to release
String	toString()	DEBUG: Print self.
void	writeExternal(ObjectOutput out)

Methods inherited from class Object

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

Field Details

transactionStatus

private int transactionStatus

xactId

private GlobalTransactionId xactId

Constructor Details

EndXact

public EndXact(GlobalTransactionId xid,
 int s)

EndXact

public EndXact()

Method Details

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

getTypeFormatId

public int getTypeFormatId()

Return my format identifier.

Specified by:

getTypeFormatId in interface TypedFormat

Returns:

The identifier. (A UUID stuffed in an array of 16 bytes).

doMe

public void doMe(Transaction xact,
 LogInstant instant,
 LimitObjectInput in)

Apply the change indicated by this operation and optional data.

Specified by:

doMe in interface Loggable

Parameters:

xact - the Transaction

instant - the log instant of this operation

in - optional data

getPreparedLog

public ByteArray getPreparedLog()

the default for prepared log is always null for all the operations that don't have optionalData. If an operation has optional data, the operation need to prepare the optional data for this method. EndXact has no optional data to write out

Specified by:

getPreparedLog in interface Loggable

See Also:

• ObjectOutput

needsRedo

public boolean needsRedo(Transaction xact)

Always redo an EndXact.

Specified by:

needsRedo in interface Loggable

Parameters:

xact - The transaction trying to redo this operation

Returns:

true if operation needs redoing, false if not.

See Also:

• Loggable.releaseResource(Transaction)

releaseResource

public void releaseResource(Transaction xact)

EndXact has no resource to release

Specified by:

releaseResource in interface Loggable

group

public int group()

EndXact is a RAWSTORE log record.

Specified by:

group in interface Loggable

toString

public String toString()

DEBUG: Print self.

Overrides:

toString in class Object