/* Copyright (c) 2001-2016, 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;
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* 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;
import org.hsqldb.persist.
CachedObject;
import org.hsqldb.persist.
PersistentStore;
/**
* Manages rows involved in transactions
*
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.3.0
* @since 2.0.0
*/
public interface
TransactionManager {
//
int
LOCKS = 0;
int
MVLOCKS = 1;
int
MVCC = 2;
//
int
ACTION_READ = 0;
int
ACTION_DUP = 1;
int
ACTION_REF = 2;
//
int
resetSessionResults = 1;
int
resetSessionTables = 2;
int
resetSessionResetAll = 3;
int
resetSessionRollback = 4;
int
resetSessionAbort = 5;
int
resetSessionClose = 6;
long
getGlobalChangeTimestamp();
long
getNextGlobalChangeTimestamp();
void
setGlobalChangeTimestamp(long
ts);
RowAction addDeleteAction(
Session session,
Table table,
PersistentStore store,
Row row, int[]
colMap);
void
addInsertAction(
Session session,
Table table,
PersistentStore store,
Row row, int[]
changedColumns);
/**
* add session to the end of queue when a transaction starts
* (depending on isolation mode)
*/
void
beginAction(
Session session,
Statement cs);
void
beginActionResume(
Session session);
void
beginTransaction(
Session session);
// functional unit - accessibility of rows
boolean
canRead(
Session session,
PersistentStore store,
Row row, int
mode,
int[]
colMap);
boolean
canRead(
Session session,
PersistentStore store, long
id, int
mode);
boolean
commitTransaction(
Session session);
void
completeActions(
Session session);
int
getTransactionControl();
boolean
isMVRows();
boolean
isMVCC();
boolean
is2PL();
boolean
prepareCommitActions(
Session session);
void
rollback(
Session session);
void
rollbackAction(
Session session);
void
rollbackSavepoint(
Session session, int
index);
void
rollbackPartial(
Session session, int
start, long
timestamp);
void
setTransactionControl(
Session session, int
mode);
/**
* store transaction info for a new row. called only
* for CACHED tables
*/
void
addTransactionInfo(
CachedObject object);
/**
* add transaction info to a row just loaded from the cache. called only
* for CACHED tables
*/
void
setTransactionInfo(
PersistentStore store,
CachedObject object);
/**
* remove the transaction info
*/
void
removeTransactionInfo(
CachedObject object);
void
removeTransactionInfo(long
id);
void
resetSession(
Session session,
Session targetSession, int
mode);
}