org.exist.storage.dom
Class AddValueLoggable

java.lang.Object
  org.exist.storage.journal.AbstractLoggable
      org.exist.storage.dom.AddValueLoggable

All Implemented Interfaces:

Loggable

Direct Known Subclasses:

AddMovedValueLoggable

public class AddValueLoggable

extends AbstractLoggable

Field Summary

protected DOMFile	domDb
protected long	pageNum
protected short	tid
protected byte[]	value

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

lsn, transactId, type

Constructor Summary

	AddValueLoggable()
protected	AddValueLoggable(byte id, DBBroker broker, long transactionId)
protected	AddValueLoggable(byte id, Txn transaction, long pageNum, short tid, byte[] value)
	AddValueLoggable(DBBroker broker, long transactionId)
	AddValueLoggable(Txn transaction, long pageNum, short tid, byte[] value)

Method Summary

void	clear(Txn transaction, long pageNum, short tid, byte[] value)
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.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

domDb

protected DOMFile domDb

pageNum

protected long pageNum

tid

protected short tid

value

protected byte[] value

Constructor Detail

AddValueLoggable

public AddValueLoggable()

AddValueLoggable

public AddValueLoggable(Txn transaction,
                        long pageNum,
                        short tid,
                        byte[] value)

AddValueLoggable

protected AddValueLoggable(byte id,
                           Txn transaction,
                           long pageNum,
                           short tid,
                           byte[] value)

AddValueLoggable

public AddValueLoggable(DBBroker broker,
                        long transactionId)

AddValueLoggable

protected AddValueLoggable(byte id,
                           DBBroker broker,
                           long transactionId)

Method Detail

clear

public void clear(Txn transaction,
                  long pageNum,
                  short tid,
                  byte[] value)

write

public void write(java.nio.ByteBuffer out)

Description copied from interface: Loggable

Write this entry to the specified ByteBuffer.

Parameters:

out -

read

public void read(java.nio.ByteBuffer in)

Description copied from interface: Loggable

Read the entry.

Parameters:

in -

getLogSize

public int getLogSize()

Description copied from interface: Loggable

Returns the size of the work load of this entry.

Returns:

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 AbstractLoggable