org.neodatis.odb.core.transaction

Interface ITransaction

All Known Implementing Classes:

DefaultTransaction

public interface ITransaction

Method Summary

Modifier and Type	Method and Description
void	clear() clear the transaction
void	commit() Execute the commit process of the transaction
java.lang.String	getName()
int	getNumberOfWriteActions()
boolean	isArchiveLog()
boolean	isCommited()
void	manageWriteAction(long position, byte[] bytes) The public method to add a write action to the transaction.
void	reset() Reset the transaction
void	rollback()
void	setArchiveLog(boolean archiveLog)
void	setFsiToApplyWriteActions(IFileSystemInterface fsi)
void	setWritePosition(long position) Set the write position (position in main database file).

Method Detail

clear

void clear()

clear the transaction

getName

java.lang.String getName()

isCommited

boolean isCommited()

rollback

void rollback()

commit

void commit()

Execute the commit process of the transaction

Throws:

java.lang.Exception

setFsiToApplyWriteActions

void setFsiToApplyWriteActions(IFileSystemInterface fsi)

isArchiveLog

boolean isArchiveLog()

Returns:

Returns the archiveLog.

setArchiveLog

void setArchiveLog(boolean archiveLog)

Parameters:

archiveLog - The archiveLog to set.

manageWriteAction

void manageWriteAction(long position,
                       byte[] bytes)

The public method to add a write action to the transaction. If first checks if the new write action action can be appended to the current write action. It is done by checking the currentWritePositioninWA. If yes (position==currentPositioninWA, just append the WA. If not, adds the current one to the transaction and creates a new one (as current)

Parameters:

position -

bytes -

getNumberOfWriteActions

int getNumberOfWriteActions()

Returns:

Returns the numberOfWriteActions.

setWritePosition

void setWritePosition(long position)

Set the write position (position in main database file). This is used to know if the next write can be appended to the previous one (in the same current Write Action) or not.

Parameters:

position -

reset

void reset()

Reset the transaction