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The UserTransaction interface defines the methods that allow an application to explicitly manage transaction boundaries.
| Method Summary | |
|  void | begin()Create a new transaction and associate it with the current thread. | 
|  void | commit()Complete the transaction associated with the current thread. | 
|  int | getStatus()Obtain the status of the transaction associated with the current thread. | 
|  void | rollback()Roll back the transaction associated with the current thread. | 
|  void | setRollbackOnly()Modify the transaction associated with the current thread such that the only possible outcome of the transaction is to roll back the transaction. | 
|  void | setTransactionTimeout(int seconds)Modify the timeout value that is associated with transactions started by subsequent invocations of the begin method. | 
| Method Detail | 
public void begin()
           throws NotSupportedException,
                  SystemException
NotSupportedException - Thrown if the thread is already
    associated with a transaction and the Transaction Manager
    implementation does not support nested transactions.
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.
public void commit()
            throws RollbackException,
                   HeuristicMixedException,
                   HeuristicRollbackException,
                   java.lang.SecurityException,
                   java.lang.IllegalStateException,
                   SystemException
RollbackException - Thrown to indicate that
    the transaction has been rolled back rather than committed.
HeuristicMixedException - Thrown to indicate that a heuristic
    decision was made and that some relevant updates have been committed
    while others have been rolled back.
HeuristicRollbackException - Thrown to indicate that a
    heuristic decision was made and that all relevant updates have been
    rolled back.
java.lang.SecurityException - Thrown to indicate that the thread is
    not allowed to commit the transaction.
java.lang.IllegalStateException - Thrown if the current thread is
    not associated with a transaction.
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.
public void rollback()
              throws java.lang.IllegalStateException,
                     java.lang.SecurityException,
                     SystemException
java.lang.SecurityException - Thrown to indicate that the thread is
    not allowed to roll back the transaction.
java.lang.IllegalStateException - Thrown if the current thread is
    not associated with a transaction.
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.
public void setRollbackOnly()
                     throws java.lang.IllegalStateException,
                            SystemException
java.lang.IllegalStateException - Thrown if the current thread is
    not associated with a transaction.
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.
public int getStatus()
              throws SystemException
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.
public void setTransactionTimeout(int seconds)
                           throws SystemException
If an application has not called this method, the transaction service uses some default value for the transaction timeout.
seconds - The value of the timeout in seconds. If the value is zero,
        the transaction service restores the default value. If the value
        is negative a SystemException is thrown.
SystemException - Thrown if the transaction manager
    encounters an unexpected error condition.| 
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.