Vaadin and Service Builder

[Ay Kay, modificado 11 Anos atrás.]

Hi there.

Does anyone know (or can supply reference on) how to get hold of Service Builder classes from within Vaadin?

Here is one of my many failing attempts.

		List<user> clients = UserLocalServiceUtil.getOrganizationUsers(chamberId);

		for (User client : clients)
		{
			try
			{
				MyEntityPersistence MyEntityPersistence = MyEntityUtil.getPersistence();
				List<myentity> myEntities = MyEntityPersistence.findByClientId(client.getUserId());
</myentity></user>

Since UserLocalServiceUtil works without problems I expected

• MyEntityUtil
• MyEntityLocalServiceImpl
• MyEntityPersistenceImpl

which reside in my Vaadin portlet project to be just as accessable. They aren't!

Caused by: org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here

in line 8 of code above. So Hibernate Session is not bound to this thread. Seems I don't have the appropriate objects (instances) at all. Which brings me to my question: How to get hold of them?

Thank you! And have a nice weekend.
Cheers.


PS: Sorry for displaying such an amount of ignorance. INet couldn't help me here so far.

[David H Nebinger, modificado 11 Anos atrás.]

Yep, we do this all the time...

Basically in MyEntityLocalServiceImpl, add the method List<MyEntity> findByClientId(long userId) method. This method implementation, since it is part of the plugin providing the service it won't encounter class cast issues.

Upon re-running service builder, the MyEntityLocalServiceUtil class will now have a findByClientId() method that you can use in your Vaadin layer to access the information.

[Ay Kay, modificado 11 Anos atrás.]

Thanks David.

This and your explanation in the other thread cleared it for me. Thank you for taking some time of your precious weekend.

Cheers


PS: If someone else should ever run into this, after a quick note here, I'll add my lines. It's very basic. You just need to know about the process.