/* Copyright (c) 2001-2009, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.hsqldb;
/**
* Represents a single insert / delete / rollback / commit action on a row.
*
* type = type of action
* actionTimestamp = timestamp of end of SQL action; 0 if action not complete
* commitTimestamp = timestamp of commit or rollback; 0 if not committed/rolledback
* rolledBack = flag for rolled back actions
* next = next action in linked list;
*
* timestamps are not in any order
*
* @author Fred Toussi (fredt@users dot sourceforge dot net)
* @version 2.0.0
* @since 2.0.0
*/
class RowActionBase {
public static final byte ACTION_NONE = 0;
public static final byte ACTION_INSERT = 1;
public static final byte ACTION_DELETE = 2;
public static final byte ACTION_DELETE_FINAL = 3;
public static final byte ACTION_DELETE_COMMITTED = 4;
public static final byte ACTION_DEBUG = 5;
RowActionBase next;
Session session;
long changeTimestamp;
long actionTimestamp;
long commitTimestamp;
byte type;
boolean rolledback;
boolean prepared;
//
long tempMergeTimestamp;
/**
* constructor, used for delete actions only
*/
RowActionBase(Session session, byte type) {
this.session = session;
this.type = type;
changeTimestamp = session.actionTimestamp;
}
void setAsAction(RowActionBase action) {
next = action.next;
session = action.session;
changeTimestamp = action.changeTimestamp;
actionTimestamp = action.actionTimestamp;
commitTimestamp = action.commitTimestamp;
type = action.type;
rolledback = action.rolledback;
prepared = action.prepared;
}
}