Class TransactionTableEntry

java.lang.Object

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

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, Formatable, TypedFormat, TransactionInfo

public class TransactionTableEntry
extends Object
implements Formatable, TransactionInfo, Cloneable

Transaction table entry is used to store all relevant information of a transaction into the transaction table for the use of checkpoint, recovery, Transaction management during Quiesce state, and for dumping transaction table. Only works with the following classes: TransactionTable, XactFactory, Xact
During run time, whenever any transaction is started, it is put into the transaction table. Whenever any transaction is closed, it is removed from the transaction table.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	EXCLUDE
private LogInstant	firstLog
private GlobalTransactionId	gid
private boolean	isClone
private LogInstant	lastLog
private LanguageConnectionContext	lcc
private Xact	myxact
private boolean	needExclusion
private boolean	recovery
(package private) static final int	RECOVERY
private int	transactionStatus
private boolean	update
(package private) static final int	UPDATE
private TransactionId	xid

Constructor Summary

Constructors

Constructor	Description
TransactionTableEntry()
TransactionTableEntry(Xact xact, TransactionId tid, int status, int attribute)

Method Summary

Modifier and Type	Method	Description
protected Object	clone()	Cloneable
(package private) LogInstant	getFirstLog()
String	getFirstLogInstantString()
final GlobalTransactionId	getGid()
String	getGlobalTransactionIdString()
(package private) LogInstant	getLastLog()
private void	getlcc()
String	getStatementTextString()
String	getTransactionIdString()	Methods of TransactionInfo
(package private) int	getTransactionStatus()
String	getTransactionStatusString()
String	getTransactionTypeString()
int	getTypeFormatId()	Return my format identifier.
String	getUsernameString()
final Xact	getXact()
(package private) TransactionId	getXid()	get instance variables
(package private) boolean	isPrepared()
(package private) boolean	isRecovery()
(package private) boolean	isUpdate()
boolean	needExclusion()
(package private) void	prepareTransaction()
void	readExternal(ObjectInput in)
(package private) void	removeUpdateTransaction()
(package private) void	setXact(Xact xact)
String	toString()
(package private) void	unsetRecoveryStatus()
(package private) void	updateTransactionStatus(Xact xact, int status, int attribute)
void	writeExternal(ObjectOutput out)

Methods inherited from class Object

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

Field Details

xid

private TransactionId xid

gid

private GlobalTransactionId gid

firstLog

private LogInstant firstLog

lastLog

private LogInstant lastLog

transactionStatus

private int transactionStatus

myxact

private transient Xact myxact

update

private transient boolean update

recovery

private transient boolean recovery

needExclusion

private transient boolean needExclusion

isClone

private boolean isClone

lcc

private transient LanguageConnectionContext lcc

UPDATE

static final int UPDATE

See Also:

• Constant Field Values

RECOVERY

static final int RECOVERY

See Also:

• Constant Field Values

EXCLUDE

static final int EXCLUDE

See Also:

• Constant Field Values

Constructor Details

TransactionTableEntry

TransactionTableEntry(Xact xact,
 TransactionId tid,
 int status,
 int attribute)

TransactionTableEntry

public TransactionTableEntry()

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 ClassNotFoundException,
IOException

Specified by:

readExternal in interface Externalizable

Throws:

ClassNotFoundException

IOException

setXact

void setXact(Xact xact)

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).

toString

public String toString()

Overrides:

toString in class Object

updateTransactionStatus

void updateTransactionStatus(Xact xact,
 int status,
 int attribute)

removeUpdateTransaction

void removeUpdateTransaction()

unsetRecoveryStatus

void unsetRecoveryStatus()

prepareTransaction

void prepareTransaction()

getXid

TransactionId getXid()

get instance variables

getGid

public final GlobalTransactionId getGid()

getFirstLog

LogInstant getFirstLog()

getLastLog

LogInstant getLastLog()

getXact

public final Xact getXact()

getTransactionStatus

int getTransactionStatus()

isUpdate

boolean isUpdate()

isRecovery

boolean isRecovery()

isPrepared

boolean isPrepared()

needExclusion

public boolean needExclusion()

getTransactionIdString

public String getTransactionIdString()

Methods of TransactionInfo

Specified by:

getTransactionIdString in interface TransactionInfo

getGlobalTransactionIdString

public String getGlobalTransactionIdString()

Specified by:

getGlobalTransactionIdString in interface TransactionInfo

getUsernameString

public String getUsernameString()

Specified by:

getUsernameString in interface TransactionInfo

getTransactionTypeString

public String getTransactionTypeString()

Specified by:

getTransactionTypeString in interface TransactionInfo

getTransactionStatusString

public String getTransactionStatusString()

Specified by:

getTransactionStatusString in interface TransactionInfo

getStatementTextString

public String getStatementTextString()

Specified by:

getStatementTextString in interface TransactionInfo

getFirstLogInstantString

public String getFirstLogInstantString()

Specified by:

getFirstLogInstantString in interface TransactionInfo

getlcc

private void getlcc()

clone

protected Object clone()

Cloneable

Overrides:

clone in class Object