I need to port a JPA application which uses Hibernate as JPA Provider to Oracle WLS which uses EclipseLink JPA provider. As for the Hibernate, I needed some special configuration in persistence.xml to activate the second level cache. Is it activated by default with Eclipse Link ? I've found some outdated (2009) resources on the net which confirms it's on by default. Can anybody confirm it ?
Thanks
Yes, it is on by default. See
http://wiki.eclipse.org/EclipseLink/Examples/JPA/Caching
For details
Related
Is there any additional configuration that needs to be done in order to enable CDI JTA Transactions using #Transactional annotation under CDI beans with Weblogic 12.1.3 server?
I have tried to just add the annotation into a service method, but EntityManager didn't recognize to be running under a transaction.
Is there any interceptor or something else that needs to be registered?
#JoshAment is right.
WebLogic 12.1.3 only partially supports Java EE 7 (it supports its four pieces: JPA 2.1, JAX-RS 2.0, JSON-P 1.0, WebSockets 1.0). But #Transactional is a part of JTA 1.2.
Right now only Liberty Profile is fully certified against Java EE 7.
The planned year-end WebLogic 12.1.4 is going to support it also.
Anyway, answering your question: just configured persistence.xml should be enough to use the #javax.transaction.Transactional annotation in your code.
// You may also consider to move away from Java EE 7 ;) then you would be able to freely choose whatever lib you want. I strongly believe that server itself should not provide anything except servlets.
I have my web application currently hosted on WebSphere Application Server 7.0.0.0.
Now i want to migrate my application to JBOSS EAP 6.2.0. GA.
Has anyone done it before? I need help on below issues.
I want to create following equivalent components in JBOSS.
1) Oracle data source
--> To create Oracle Data Source, we first definitely need to create Oracle JDBC Provider. So also need to know how to create equivalent to this in JBOSS.
2) Queue
3) Activation Specification
4) Shared library to contain configuration file and third party jars.
How to deploy applications on JBOSS knowldge would be an added advantage.
Yeah, have done some googling and found below links,
http://www.redhat.com/f/pdf/jboss/JBoss_WebSphereMigrationGuide.pdf
https://docs.jboss.org/author/display/AS72/How+do+I+migrate+my+application+from+WebSphere+to+AS+7
But the links doesnt have any practicle knowledge.
I have tried migrating from websphere to JBOSS\WildFly 10.
Not sure about the other versions of JBoss but wildfly 10 has a configuration xml which you can use to configure your server.
I configured the database, queues, queue factories, namespace bindings using this configuration xml which is available as part of the server installation itself.
The file is present in this location
YOUR_SERVER_INSTALLATION_HOME/opt/jboss/wildfly/standalone/configuration/standalone.xml
There are multiple configurations that are possible and you can customize them as per your need as well. You can refer the below documentation for customization.
https://docs.jboss.org/author/display/WFLY10/Subsystem+configuration
I am currently working on a EJB 3.1 based project running on GlassFish that uses a custom built framework to configure the functionality of any SessionBeans. Using this we can enable, disable and re-configure most of the services at run-time. Unfortunately we can't extend this to support conifguration of MDBs. I would like to set the selector a MDB is using based upon the configuration information and re-configure this if the settings change.
Unfortunately I could only come up with a SessionBean that creates MessageConsumers natively on the JMS Sessions based upon the configuration and to have the JMS messages handleb by MessageListeners, but I was told this way we would be loosing concurrency and the transaction handling of the EJB system, as we would no longer be using MDBs this way.
So is there any way to do what I'm looking for using MDBs? Someone told me there are some planned extensions in new EJB and JMS spec drafts, but I couln't find a pointer to that particular topic.
No, MDBs are configured by the Deployer at deploy-time.
Similar question answered here: Configuring MappedName annotation in Message Driven Bean dynamically
I am using OSGI with Glassfish 3.0.1.We use Jersey REST as the resource layer. We have lots of osgi services. we are planning to decouple them & deploy it in a cloud. One way we do this is by doing a http REST call. But we would like to do service to service call at the api level. One way to do this is by using DOSGI. But Glassfish 3.0.1 doesn't seem to support DOSGI. Any other suggestions?
I believe that Glassfish contains Apache Felix, which is a fully compliant OSGi Framework. Therefore you do not need explicit support from Glassfish in order to use a set of bundles that provide Remote Services (the name "DOSGI" is now deprecated). Indeed, this is kind of the point of OSGi!
Anyway the next obvious question is which Remote Services implementation to choose. I would advise you NOT to use CXF since it is too buggy and unmaintained. That leaves Eclipse ECF or Paremus RSA.
(Disclaimer: the Paremus implementation is commercial and I work for Paremus).
do i have to use elipselink as a persistence provider to make eclipselink cache working, please advise
EclipseLink's cache is built in for use with EclipseLink JPA or native ORM. It is not designed for use outside of this context.
Doug