/*
GASH 2
DBJournalTransaction.java
The GANYMEDE object storage system.
Created: 11 Februrary 2005
Module By: Jonathan Abbey, jonabbey@arlut.utexas.edu
-----------------------------------------------------------------------
Ganymede Directory Management System
Copyright (C) 1996-2013
The University of Texas at Austin
Ganymede is a registered trademark of The University of Texas at Austin
Contact information
Web site: http://www.arlut.utexas.edu/gash2
Author Email: ganymede_author@arlut.utexas.edu
Email mailing list: ganymede@arlut.utexas.edu
US Mail:
Computer Science Division
Applied Research Laboratories
The University of Texas at Austin
PO Box 8029, Austin TX 78713-8029
Telephone: (512) 835-3200
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package arlut.csd.ganymede.server;
/*------------------------------------------------------------------------------
class
DBJournalTransaction
------------------------------------------------------------------------------*/
/**
* <p>This class is a simple data carrier recording the time and
* transaction number for a transaction in the process of being
* persisted to Ganymede's replay journal.</p>
*/
final class DBJournalTransaction {
/**
* <p>The time stamp of the transaction.</p>
*/
private final long time;
/**
* <p>This offset records the write position in the journal that
* we'll want to truncate the journal to if we decide to undo the
* transaction from the journal, rather than finalizing it.</p>
*/
private final long fileOffset;
/**
* <p>The sequential transaction number.</p>
*/
private final int transactionNumber;
/**
* <p>The admin, user, or task name which initiated the
* transaction.</p>
*/
private final String username;
/* -- */
public DBJournalTransaction(long time, long fileOffset, int transactionNumber, String username)
{
this.time = time;
this.fileOffset = fileOffset;
this.transactionNumber = transactionNumber;
this.username = username;
}
public long getTime()
{
return this.time;
}
public long getOffset()
{
return this.fileOffset;
}
public int getTransactionNumber()
{
return this.transactionNumber;
}
public String getUsername()
{
return this.username;
}
}