oracle.jbo.server
Class DefaultTxnHandlerImpl

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

All Implemented Interfaces:

TransactionHandler

Direct Known Subclasses:

DefaultJTATxnHandlerImpl

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

Type	Method
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.
void	resume()
void	suspend()

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()

suspend

public void suspend()

Specified by:

suspend in interface TransactionHandler

resume

public void resume()

Specified by:

resume in interface TransactionHandler

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.