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package org.hsqldb;

import org.hsqldb.persist.PersistentStore;

Manages rows involved in transactions
Author:
Fred Toussi (fredt@users dot sourceforge.net)
Version:
2.5.0
Since:
2.0.0/**
 * Manages rows involved in transactions
 *
 * @author Fred Toussi (fredt@users dot sourceforge.net)
 * @version 2.5.0
 * @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 resetSessionStatement = 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);

    void addInsertAction(Session session, PersistentStore store, Row row);

    
add session to the end of queue when a transaction starts
(depending on isolation mode)
/**
     * 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);

    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);

    void resetSession(Session session, Session targetSession, int mode);
}