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

java.lang.Object
  org.apache.derby.impl.store.raw.xact.EndXact

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, Formatable, TypedFormat, Loggable

public class EndXact
extends java.lang.Object
implements Loggable

This operation indicates the End of a transaction.

See Also:

Loggable, Serialized Form

Field Summary

private int	transactionStatus
private GlobalTransactionId	xactId

Fields inherited from interface org.apache.derby.iapi.store.raw.Loggable

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

Constructor Summary

EndXact()

EndXact(GlobalTransactionId xid, int s)

Method Summary

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(java.io.ObjectInput in)
void	releaseResource(Transaction xact) EndXact has no resource to release
java.lang.String	toString() DEBUG: Print self.
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

transactionStatus

private int transactionStatus

xactId

private GlobalTransactionId xactId

Constructor Detail

EndXact

public EndXact(GlobalTransactionId xid,
               int s)

EndXact

public EndXact()

Method Detail

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.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(org.apache.derby.iapi.store.raw.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 java.lang.String toString()

DEBUG: Print self.

Overrides:

toString in class java.lang.Object