Class TransactionManagerImpl

  • All Implemented Interfaces:
    TransactionManager

    public class TransactionManagerImpl
    extends Object
    implements TransactionManager
    Standard connection and transaction management for Torque. Uses JDBC connection operations and Torque's own database pools for managing connections and transactions.
    Version:
    $Id: TransactionManagerImpl.java 1880635 2020-08-06 11:28:14Z gk $
    Author:
    Stephen Haberman
    • Constructor Detail

      • TransactionManagerImpl

        public TransactionManagerImpl()
    • Method Detail

      • begin

        public TorqueConnection begin()
                               throws TorqueException
        Begin a transaction by retrieving a connection from the default database connection pool. WARNING: If the database does not support transaction or the pool has set autocommit to true on the connection, the database will commit after every statement, regardless of when a commit or rollback is issued.
        Specified by:
        begin in interface TransactionManager
        Returns:
        The Connection for the transaction.
        Throws:
        TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
      • begin

        public TorqueConnection begin​(String dbName)
                               throws TorqueException
        Begin a transaction by retrieving a connection from the named database connection pool. WARNING: If the database does not support transaction or the pool has set autocommit to true on the connection, the database will commit after every statement, regardless of when a commit or rollback is issued.
        Specified by:
        begin in interface TransactionManager
        Parameters:
        dbName - Name of database.
        Returns:
        The Connection for the transaction.
        Throws:
        TorqueException - If the connection cannot be retrieved.
      • commit

        public void commit​(Connection con)
                    throws TorqueException
        Commit a transaction and close the connection. If the connection is in autocommit mode or the database does not support transactions, only a connection close is performed
        Specified by:
        commit in interface TransactionManager
        Parameters:
        con - The Connection for the transaction.
        Throws:
        TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
      • rollback

        public void rollback​(Connection con)
                      throws TorqueException
        Roll back a transaction and release the connection. In databases that do not support transactions or if autocommit is true, no rollback will be performed, but the connection will be closed anyway.
        Specified by:
        rollback in interface TransactionManager
        Parameters:
        con - The Connection for the transaction.
        Throws:
        TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
      • safeRollback

        public void safeRollback​(Connection con)
        Roll back a transaction without throwing errors if they occur. A null Connection argument is logged at the debug level and other errors are logged at warn level.
        Specified by:
        safeRollback in interface TransactionManager
        Parameters:
        con - The Connection for the transaction.
        See Also:
        rollback(Connection)