org.treetank.access

Class IscsiWriteTrx

java.lang.Object

org.treetank.access.IscsiWriteTrx

All Implemented Interfaces:

IIscsiReadTrx, IIscsiWriteTrx

public class IscsiWriteTrx
extends Object
implements IIscsiWriteTrx

Author:

Andreas Rain

Constructor Summary

Constructors

Constructor and Description
IscsiWriteTrx(IBucketWriteTrx pPageTrx, ISession pSession) Create a new IscsiWriteTrx

Method Summary

Methods

Modifier and Type	Method and Description
void	abort() Abort all modifications of the exclusive write transaction.
void	bootstrap(byte[] bytes) This method inserts the given data into the database.
void	close() Close this transaction
void	commit() ICommitStrategy all modifications of the exclusive write transaction.
BlockDataElement	getCurrentData() The data that the cursor currently points on
byte[]	getValueOfCurrentData() A quick get method to get the value of the current data.
boolean	isClosed() Check whether or not this transaction has been closed
boolean	moveTo(long pKey) Move the cursor to the given data key
void	setValue(byte[] val) Set value of data.

Methods inherited from class java.lang.Object

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

Constructor Detail

IscsiWriteTrx

public IscsiWriteTrx(IBucketWriteTrx pPageTrx,
             ISession pSession)
              throws TTException

Create a new IscsiWriteTrx

Parameters:

pPageTrx - delegation page transaction

pSession - session from treetank

Throws:

TTException

Method Detail

bootstrap

public void bootstrap(byte[] bytes)
               throws TTException

This method inserts the given data into the database.

Specified by:

bootstrap in interface IIscsiWriteTrx

Throws:

TTException

setValue

public void setValue(byte[] val)
              throws TTException

Set value of data.

Specified by:

setValue in interface IIscsiWriteTrx

Parameters:

val - new value of data

Throws:

TTException - if value couldn't be set

commit

public void commit()
            throws TTException

ICommitStrategy all modifications of the exclusive write transaction. Even commit if there are no modification at all.

Specified by:

commit in interface IIscsiWriteTrx

Throws:

TTException - if this revision couldn't be commited

abort

public void abort()
           throws TTException

Abort all modifications of the exclusive write transaction.

Specified by:

abort in interface IIscsiWriteTrx

Throws:

TTException - if this revision couldn't be aborted

moveTo

public boolean moveTo(long pKey)

Move the cursor to the given data key

Specified by:

moveTo in interface IIscsiReadTrx

Returns:

true if successful, false otherwise

getValueOfCurrentData

public byte[] getValueOfCurrentData()

A quick get method to get the value of the current data.

Specified by:

getValueOfCurrentData in interface IIscsiReadTrx

Returns:

the value of the current data

getCurrentData

public BlockDataElement getCurrentData()

The data that the cursor currently points on

Specified by:

getCurrentData in interface IIscsiReadTrx

Returns:

the current data

close

public void close()
           throws TTIOException

Close this transaction

Specified by:

close in interface IIscsiReadTrx

Throws:

TTIOException

isClosed

public boolean isClosed()

Check whether or not this transaction has been closed

Specified by:

isClosed in interface IIscsiReadTrx

Returns:

true if closed, false otherwise