oracle.jbo.server
Class DefaultTxnHandlerImpl

java.lang.Object
  |
  +--oracle.jbo.server.DefaultTxnHandlerImpl

public class DefaultTxnHandlerImpl

extends java.lang.Object

implements TransactionHandler

The default implementation of the TransactionHandler interface. DefaultTxnHandlerImpl provides transaction handling when running under non-EJB platforms. Hence the name "Default". Examples of non-EJB platforms are LOCAL, 8i (Oracle8i), CORBA, and VB (Visibroker). When running under a non-EJB platform, transactions are committed using the JDBC API. In contrast, when running under EJB, transactions are committed using the JTS API.

Since:

JDeveloper 3.0

See Also:

TransactionHandler

Constructor Summary

DefaultTxnHandlerImpl()
Creates a transaction handler on a JDBC connection.

Method Summary

void	begin()
void	end()
void	handleClose(java.sql.Connection conn) Issues a close() command to the JDBC connection.
void	handleCommit(java.sql.Connection conn, boolean autoStart) Issues a commit() command to the JDBC connection.
void	handleOpen(java.sql.Connection conn) Opens a transaction.
void	handleRollback(java.sql.Connection conn, boolean autoStart) Issues a rollback() command to the JDBC connection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultTxnHandlerImpl

public DefaultTxnHandlerImpl()

Creates a transaction handler on a JDBC connection.

Parameters:

c - a connection.

Method Detail

begin

public void begin()

Specified by:

begin in interface TransactionHandler

end

public void end()

handleOpen

public void handleOpen(java.sql.Connection conn)

Opens a transaction. Under JDBC, the transaction is already assumed to be open. Other than set autocommit to false, this default implementation does nothing.

Specified by:

handleOpen in interface TransactionHandler

handleCommit

public void handleCommit(java.sql.Connection conn,
                         boolean autoStart)

Issues a commit() command to the JDBC connection.

Specified by:

handleCommit in interface TransactionHandler

Throws:

DMLException - if an attempt to post to the database was unsuccessful.

handleRollback

public void handleRollback(java.sql.Connection conn,
                           boolean autoStart)

Issues a rollback() command to the JDBC connection.

Specified by:

handleRollback in interface TransactionHandler

Throws:

DMLException - if an attempt to post to the database was unsuccessful.

handleClose

public void handleClose(java.sql.Connection conn)

Issues a close() command to the JDBC connection.

Specified by:

handleClose in interface TransactionHandler

Throws:

DMLException - if an attempt to post to the database was unsuccessful.