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

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

All Implemented Interfaces:

java.lang.Cloneable, java.io.Externalizable, org.apache.derby.iapi.services.io.Formatable, java.io.Serializable, org.apache.derby.iapi.store.access.TransactionInfo, org.apache.derby.iapi.services.io.TypedFormat

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public class TransactionTableEntry

extends java.lang.Object

implements org.apache.derby.iapi.services.io.Formatable, org.apache.derby.iapi.store.access.TransactionInfo, java.lang.Cloneable

Transaction table entry is used to store all relavent 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.

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Field Summary
(package private) static int	EXCLUDE
private  org.apache.derby.iapi.store.raw.log.LogInstant	firstLog
private  org.apache.derby.iapi.store.raw.GlobalTransactionId	gid
private  boolean	isClone
private  org.apache.derby.iapi.store.raw.log.LogInstant	lastLog
private  org.apache.derby.iapi.sql.conn.LanguageConnectionContext	lcc
private  Xact	myxact
private  boolean	needExclusion
private  boolean	recovery
(package private) static int	RECOVERY
private  int	transactionStatus
private  boolean	update
(package private) static int	UPDATE
private  org.apache.derby.iapi.store.raw.xact.TransactionId	xid

 

Constructor Summary
	TransactionTableEntry()
(package private)	TransactionTableEntry(Xact xact, org.apache.derby.iapi.store.raw.xact.TransactionId tid, int status, int attribute)

 

Method Summary
protected  java.lang.Object	clone()           Cloneable
(package private)  org.apache.derby.iapi.store.raw.log.LogInstant	getFirstLog()
java.lang.String	getFirstLogInstantString()
org.apache.derby.iapi.store.raw.GlobalTransactionId	getGid()
java.lang.String	getGlobalTransactionIdString()
(package private)  org.apache.derby.iapi.store.raw.log.LogInstant	getLastLog()
private  void	getlcc()
java.lang.String	getStatementTextString()
java.lang.String	getTransactionIdString()           Methods of TransactionInfo
(package private)  int	getTransactionStatus()
java.lang.String	getTransactionStatusString()
java.lang.String	getTransactionTypeString()
int	getTypeFormatId()           Return my format identifier.
java.lang.String	getUsernameString()
Xact	getXact()
(package private)  org.apache.derby.iapi.store.raw.xact.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(java.io.ObjectInput in)           This method restores an object's state by reading in the instance data for the object from the passed in stream.
(package private)  void	removeUpdateTransaction()
(package private)  void	setXact(Xact xact)
java.lang.String	toString()           Convert this Object to a human-readable String.
(package private)  void	unsetRecoveryStatus()
(package private)  void	updateTransactionStatus(Xact xact, int status, int attribute)
void	writeExternal(java.io.ObjectOutput out)           This method is responsible for writing the instance data of an object to the passed in stream.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

xid

private org.apache.derby.iapi.store.raw.xact.TransactionId xid

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gid

private org.apache.derby.iapi.store.raw.GlobalTransactionId gid

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firstLog

private org.apache.derby.iapi.store.raw.log.LogInstant firstLog

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lastLog

private org.apache.derby.iapi.store.raw.log.LogInstant lastLog

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transactionStatus

private int transactionStatus

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myxact

private transient Xact myxact

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update

private transient boolean update

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recovery

private transient boolean recovery

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needExclusion

private transient boolean needExclusion

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isClone

private boolean isClone

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lcc

private transient org.apache.derby.iapi.sql.conn.LanguageConnectionContext lcc

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UPDATE

static final int UPDATE

See Also:

Constant Field Values

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RECOVERY

static final int RECOVERY

See Also:

Constant Field Values

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EXCLUDE

static final int EXCLUDE

See Also:

Constant Field Values

Constructor Detail

TransactionTableEntry

TransactionTableEntry(Xact xact,
                      org.apache.derby.iapi.store.raw.xact.TransactionId tid,
                      int status,
                      int attribute)

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TransactionTableEntry

public TransactionTableEntry()

Method Detail

writeExternal

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

Description copied from interface: java.io.Externalizable

This method is responsible for writing the instance data of an object to the passed in stream. Note that this stream is not a subclass of OutputStream, but rather is a class that implements the ObjectOutput interface. That interface provides a number of methods for writing Java data values to a stream.

Not that the implementation of this method must be coordinated with the implementation of readExternal.

Specified by:

writeExternal in interface java.io.Externalizable

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readExternal

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

Description copied from interface: java.io.Externalizable

This method restores an object's state by reading in the instance data for the object from the passed in stream. Note that this stream is not a subclass of InputStream, but rather is a class that implements the ObjectInput interface. That interface provides a mechanism for reading in Java data types from a stream.

Note that this method must be compatible with writeExternal. It must read back the exact same types that were written by that method in the exact order they were written.

If this method needs to read back an object instance, then the class for that object must be found and loaded. If that operation fails, then this method throws a ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

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setXact

void setXact(Xact xact)

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getTypeFormatId

public int getTypeFormatId()

Return my format identifier.

Specified by:

getTypeFormatId in interface org.apache.derby.iapi.services.io.TypedFormat

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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updateTransactionStatus

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

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removeUpdateTransaction

void removeUpdateTransaction()

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unsetRecoveryStatus

void unsetRecoveryStatus()

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prepareTransaction

void prepareTransaction()

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getXid

org.apache.derby.iapi.store.raw.xact.TransactionId getXid()

get instance variables

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getGid

public final org.apache.derby.iapi.store.raw.GlobalTransactionId getGid()

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getFirstLog

org.apache.derby.iapi.store.raw.log.LogInstant getFirstLog()

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getLastLog

org.apache.derby.iapi.store.raw.log.LogInstant getLastLog()

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getXact

public final Xact getXact()

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getTransactionStatus

int getTransactionStatus()

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isUpdate

boolean isUpdate()

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isRecovery

boolean isRecovery()

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isPrepared

boolean isPrepared()

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needExclusion

public boolean needExclusion()

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getTransactionIdString

public java.lang.String getTransactionIdString()

Methods of TransactionInfo

Specified by:

getTransactionIdString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getGlobalTransactionIdString

public java.lang.String getGlobalTransactionIdString()

Specified by:

getGlobalTransactionIdString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getUsernameString

public java.lang.String getUsernameString()

Specified by:

getUsernameString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getTransactionTypeString

public java.lang.String getTransactionTypeString()

Specified by:

getTransactionTypeString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getTransactionStatusString

public java.lang.String getTransactionStatusString()

Specified by:

getTransactionStatusString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getStatementTextString

public java.lang.String getStatementTextString()

Specified by:

getStatementTextString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getFirstLogInstantString

public java.lang.String getFirstLogInstantString()

Specified by:

getFirstLogInstantString in interface org.apache.derby.iapi.store.access.TransactionInfo

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getlcc

private void getlcc()

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clone

protected java.lang.Object clone()

Cloneable

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> store >> raw >> [ xact overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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