org.exist.storage.index
Class StoreValueLoggable

java.lang.Object
  org.exist.storage.journal.AbstractLoggable
      org.exist.storage.index.AbstractBFileLoggable
          org.exist.storage.index.StoreValueLoggable

All Implemented Interfaces:

Loggable

public class StoreValueLoggable

extends AbstractBFileLoggable

Author:

wolf

Field Summary

protected long	page
protected short	tid
protected ByteArray	value

Fields inherited from class org.exist.storage.index.AbstractBFileLoggable

broker, fileId

Fields inherited from class org.exist.storage.journal.AbstractLoggable

lsn, transactId, type

Constructor Summary

StoreValueLoggable(DBBroker broker, long transactionId)

StoreValueLoggable(Txn transaction, byte fileId, long page, short tid, ByteArray value)

Method Summary

java.lang.String	dump() Default implementation returns the current LSN plus the class name of the Loggable instance.
int	getLogSize() Returns the size of the work load of this entry.
void	read(java.nio.ByteBuffer in) Read the entry.
void	redo() Redo the underlying operation.
void	undo() Undo, i.e.
void	write(java.nio.ByteBuffer out) Write this entry to the specified ByteBuffer.

Methods inherited from class org.exist.storage.index.AbstractBFileLoggable

getIndexFile

Methods inherited from class org.exist.storage.journal.AbstractLoggable

clear, getLogType, getLsn, getTransactionId, setLsn

Methods inherited from class java.lang.Object

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

Field Detail

page

protected long page

tid

protected short tid

value

protected ByteArray value

Constructor Detail

StoreValueLoggable

public StoreValueLoggable(Txn transaction,
                          byte fileId,
                          long page,
                          short tid,
                          ByteArray value)

StoreValueLoggable

public StoreValueLoggable(DBBroker broker,
                          long transactionId)

Method Detail

write

public void write(java.nio.ByteBuffer out)

Description copied from interface: Loggable

Write this entry to the specified ByteBuffer.

Specified by:

write in interface Loggable

Overrides:

write in class AbstractBFileLoggable

read

public void read(java.nio.ByteBuffer in)

Description copied from interface: Loggable

Read the entry.

Specified by:

read in interface Loggable

Overrides:

read in class AbstractBFileLoggable

getLogSize

public int getLogSize()

Description copied from interface: Loggable

Returns the size of the work load of this entry.

Specified by:

getLogSize in interface Loggable

Overrides:

getLogSize in class AbstractBFileLoggable

redo

public void redo()
          throws LogException

Description copied from interface: Loggable

Redo the underlying operation. This method is called by RecoveryManager.

Specified by:

redo in interface Loggable

Overrides:

redo in class AbstractLoggable

Throws:

LogException

undo

public void undo()
          throws LogException

Description copied from interface: Loggable

Undo, i.e. roll back, the underlying operation. The method is called by RecoveryManager.

Specified by:

undo in interface Loggable

Overrides:

undo in class AbstractLoggable

Throws:

LogException

dump

public java.lang.String dump()

Description copied from class: AbstractLoggable

Default implementation returns the current LSN plus the class name of the Loggable instance.

Specified by:

dump in interface Loggable

Overrides:

dump in class AbstractBFileLoggable