Klasse Transaction

java.lang.Object
org.apache.torque.util.Transaction

public final class Transaction extends Object
Encapsulates transaction and connection handling within Torque. If the underlying database does not support transaction or the database pool returns autocommit connections, the commit and rollback methods fallback to simple connection pool handling.
Version:
$Id: Transaction.java 1839284 2018-08-27 08:57:56Z tv $
Autor:
Stephen Haberman
  • Methodendetails

    • setTransactionManager

      public static void setTransactionManager(TransactionManager transactionManager)
      Sets the transaction manager to use.
      Parameter:
      transactionManager - the transaction manager to use.
    • getTransactionManager

      public static TransactionManager getTransactionManager()
      Returns the current transaction manager.
      Gibt zurück:
      the current transaction manager.
    • begin

      public static 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.
      Gibt zurück:
      The Connection for the transaction.
      Löst aus:
      TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
    • begin

      public static 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.
      Parameter:
      dbName - Name of database.
      Gibt zurück:
      The Connection for the transaction.
      Löst aus:
      TorqueException - If the connection cannot be retrieved.
    • commit

      public static 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
      Parameter:
      con - The Connection for the transaction.
      Löst aus:
      TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
    • rollback

      public static 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.
      Parameter:
      con - The Connection for the transaction.
      Löst aus:
      TorqueException - Any exceptions caught during processing will be rethrown wrapped into a TorqueException.
    • safeRollback

      public static 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.
      Parameter:
      con - The Connection for the transaction.
      Siehe auch: