pt.jcodeutil.core.ejb
Class DataSourceFactory

java.lang.Object
  |
  +--pt.jcodeutil.core.ejb.DataSourceFactory

public class DataSourceFactory

extends java.lang.Object

Title: Data Source Factory Description: Singleton that performs lookup and caches DataSources for reuse and performance purposes.

Version:

1.0

Author:

Marco Samuel (samuelbb@sapo.pt)

Method Summary

javax.sql.DataSource	getDataSource(java.lang.String dataSourceName) Looks up the data source in cache by its JNDI / DataSource-Ref name, if it doesn't exist looks it up.
static DataSourceFactory	getInstance() Gets the singleton instance

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static DataSourceFactory getInstance()
                                     throws javax.naming.NamingException

Gets the singleton instance

Returns:

the singleton instance

Throws:

javax.naming.NamingException - from InitialContext creation

getDataSource

public javax.sql.DataSource getDataSource(java.lang.String dataSourceName)
                                   throws javax.naming.NamingException

Looks up the data source in cache by its JNDI / DataSource-Ref name, if it doesn't exist looks it up.

Parameters:

dataSourceName - the JNDI / DataSource-Ref name where the data source is binded to.

Returns:

the pretended data source object

Throws:

javax.naming.NamingException - from JNDI lookup