org.j2ee.dao
Class DAOJdbcActionProcessorImpl

java.lang.Object
  |
  +--org.j2ee.dao.DAOJdbcActionProcessorImpl

All Implemented Interfaces:

DAOActionProcessor

public class DAOJdbcActionProcessorImpl

extends java.lang.Object

implements DAOActionProcessor

Based on an example of book Code Notes for J2EE, Edited by GREGORY BRILL, e-ISBN 0-679-64727-9
Last modified $Date: 2004/05/18 10:50:13 $

Version:

$Revision: 1.1.1.1 $

Author:

jvlio (jvlio@users.sourceforge.net)

Constructor Summary

DAOJdbcActionProcessorImpl()

Method Summary

void	beginTransaction() Start a new DAO transaction.
void	closeSession() close a started session
void	commitTransaction() commit a started transaction.
java.sql.Connection	getConnection() Returns the JDBC Connection associated to this processor
org.j2ee.dao.errors.ErrorMapper	getErrorMapper() Return an ErrorMapper object to translate SQLException or other kind of exception to a common error list code
void	getSession() get/start a DAO Session object to be used for external controled action.
void	process(org.j2ee.dao.DAOAction acmd)
void	rollbackTransaction() rollback a started transaction.
void	setConnection(java.sql.Connection connection) Set a JDBC Connection to this processor

Methods inherited from class java.lang.Object

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

Constructor Detail

DAOJdbcActionProcessorImpl

public DAOJdbcActionProcessorImpl()

Method Detail

getErrorMapper

public org.j2ee.dao.errors.ErrorMapper getErrorMapper()

Return an ErrorMapper object to translate SQLException or other kind of exception to a common error list code

Specified by:

getErrorMapper in interface DAOActionProcessor

Returns:

ErrorMapper

process

public void process(org.j2ee.dao.DAOAction acmd)
             throws DAOException

Specified by:

process in interface DAOActionProcessor

Parameters:

acmd - An action to execute

Throws:

DAOException - if the action is not of the type espected, for example JdbcDAOAction

getConnection

public java.sql.Connection getConnection()

Description copied from interface: DAOActionProcessor

Returns the JDBC Connection associated to this processor

Specified by:

getConnection in interface DAOActionProcessor

Returns:

Connection

setConnection

public void setConnection(java.sql.Connection connection)

Description copied from interface: DAOActionProcessor

Set a JDBC Connection to this processor

Specified by:

setConnection in interface DAOActionProcessor

Parameters:

connection - Connection

getSession

public void getSession()
                throws DAOException

get/start a DAO Session object to be used for external controled action. The processor object hold the internal representation for a session. Toplink and Hibernta will hold the Session object, JDBC will use a Connection

Specified by:

getSession in interface DAOActionProcessor

Throws:

DAOException - if there are errors open the session

beginTransaction

public void beginTransaction()
                      throws DAOException

Start a new DAO transaction. This method is usefull when you need to manage Macro Actions. The first action takes the session and the transaction a pass it to the others. The processor instance will hold the Transaction object, - Toplink implementation will use UnitOfWork object. - Hibernate implementation will use Transaction object. - JDBC will use his internal JDBC Connection

Specified by:

beginTransaction in interface DAOActionProcessor

Throws:

DAOException

commitTransaction

public void commitTransaction()
                       throws DAOException

commit a started transaction.

Specified by:

commitTransaction in interface DAOActionProcessor

Throws:

DAOException

rollbackTransaction

public void rollbackTransaction()
                         throws DAOException

rollback a started transaction.

Specified by:

rollbackTransaction in interface DAOActionProcessor

Throws:

DAOException

closeSession

public void closeSession()
                  throws DAOException

close a started session

Specified by:

closeSession in interface DAOActionProcessor

Throws:

DAOException