RE: [eclipselink-users] DatabaseExceptionjdbc4.CommunicationsException -

[MICHAEL.OBRIEN@xxxxxxxxxx]

Mathias,
	Sorry, the interface has moved to...
import org.eclipse.persistence.config.SessionCustomizer;

	see also
	http://wiki.eclipse.org/Customizing_the_EclipseLink_Application_(ELUG)


	You can do anything to the session with this customizer (JNDI changes are just an example).
	I would start with something like the following.


		DatabasePlatform aPlatform = (DatabasePlatform)session.getPlatform();
		aPlatform.setSupportsAutoCommit(true);


	I will look for something more around "activate on autoReconnect"
	If no one else can find anything, I would raise an enhancement request on bugzilla.

https://bugs.eclipse.org/bugs/enter_bug.cgi?product=EclipseLink

	thank you
	/michael

-----Original Message-----
From: Mathias Walter [mailto:mathias.walter@xxxxxxx]
Sent: Thursday, June 26, 2008 10:40 AM
To: EclipseLink User Discussions
Subject: RE: [eclipselink-users]
DatabaseExceptionjdbc4.CommunicationsException - try SessionCustomizer


Hi Michael,

is there no standard way to activate an autoReconnect or a keep alive?

I don't use JNDI. I'm using the MySQL connector. Why does the MySQL
autoReconnect parameter does not work?

--
Kind regards,
Mathias

> -----Original Message-----
> From: eclipselink-users-bounces@xxxxxxxxxxx 
> [mailto:eclipselink-users-bounces@xxxxxxxxxxx] On Behalf Of 
> MICHAEL.OBRIEN@xxxxxxxxxx
> Sent: Thursday, June 26, 2008 4:31 PM
> To: EclipseLink User Discussions
> Subject: RE: [eclipselink-users] 
> DatabaseExceptionjdbc4.CommunicationsException - try SessionCustomizer
> 
> 
> Mathias,
> 	Hi, If you need to do something in JPA that does not 
> have a property available - try a SessionCustomer and put the 
> custome example java code you mentioned into this class.
> 
> 	See the following JPA example where we had to change 
> the lookupType on the JNDI connector to STRING_LOOKUP instead 
> of Composite.
> 
> http://wiki.eclipse.org/EclipseLink/Examples/JPA/JBoss_Web_Tut
> orial#Create_J2EE_application
> 
> 
> persistence.xml property:
> 
> 	<property name="eclipselink.session.customizer" 
> value="org.eclipse.persistence.example.unified.integration.JPA
> EclipseLinkSessionCustomizer"/>
> 
> Your Customizer:
> 
> 	import 
> org.eclipse.persistence.internal.sessions.factories.SessionCustomizer;
> 	public class JPAEclipseLinkSessionCustomizer implements 
> SessionCustomizer {
> 		public void customize(Session session) throws 
> Exception {
> 
> 	thank you
> 	/michael
> 
> -----Original Message-----
> From: Mathias Walter [mailto:mathias.walter@xxxxxxx]
> Sent: Thursday, June 26, 2008 10:08 AM
> To: EclipseLink User Discussions
> Subject: [eclipselink-users] DatabaseException
> jdbc4.CommunicationsException
> 
> 
> Hi,
> 
> how can I configure EclipseLink (with persistence.xml) to 
> automatically
> reconnect to the database after a CommunicationsException?
> 
> I've used autoReconnect=true at the JDBC connection string, 
> but it does not
> work.
> 
> Unfortunately, the EclipseLink documentation explains only 
> how to set this
> with the Workbench or Java API and not via persistence.xml. I 
> don't use the
> workbench.
> 
> --
> Kind regards,
> Mathias
> 
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