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Hibernate javax.persistence.Persistence in RCP [message #460540]

Thu, 21 December 2006 14:47

Eclipse User

Hi,

I'm having issues getting Hibernate to work with the Persistence-API.
The problem is not classloading because all JARs needed by hibernate are
part of the application.

The problem is that when trying to run the application it seems as if
Hibernate doesn't find the persistance.xml-File located in
META-INF/persistence.xml. Does anybody ever got this work in RCP. I
searched the web but most problems seem to be related to class-loading.

--------------8<--------------
> 20:36:49,593 INFO Environment:584 - using JDK 1.4 java.sql.Timestamp handling
> javax.persistence.PersistenceException: No Persistence provider for EntityManager named hello
> at javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:55)
> at javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:33)
> at at.bestsolution.dataforms.test.data.DatasourceDispatcher.<init >(DatasourceDispatcher.java:35)
--------------8<--------------

Tom

Re: Hibernate javax.persistence.Persistence in RCP [message #460548 is a reply to message #460540]

Thu, 21 December 2006 15:35

Eclipse User

Hi Tom,

I had a similar problem with JBsss and Hibernate.
The solution was to create an EntityManagerFactory as well as an
EntityManager.

Charlie

Tom Schindl wrote:
> Hi,
>
> I'm having issues getting Hibernate to work with the Persistence-API.
> The problem is not classloading because all JARs needed by hibernate are
> part of the application.
>
> The problem is that when trying to run the application it seems as if
> Hibernate doesn't find the persistance.xml-File located in
> META-INF/persistence.xml. Does anybody ever got this work in RCP. I
> searched the web but most problems seem to be related to class-loading.
>
> --------------8<--------------
>
>> 20:36:49,593 INFO Environment:584 - using JDK 1.4 java.sql.Timestamp
>> handling
>> javax.persistence.PersistenceException: No Persistence provider for
>> EntityManager named hello
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:55)
>>
>> at
>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:33)
>>
>> at
>> at.bestsolution.dataforms.test.data.DatasourceDispatcher.<init >(DatasourceDispatcher.java:35)
>>
>
> --------------8<--------------
>
> Tom

Re: Hibernate javax.persistence.Persistence in RCP [message #460556 is a reply to message #460548]

Thu, 21 December 2006 16:56

Eclipse User

Hi,

found it out myself. The problem was that I missed the
hibernate-enitymanager.jar!

Tom

Charle Kelly schrieb:
> Hi Tom,
>
> I had a similar problem with JBsss and Hibernate.
> The solution was to create an EntityManagerFactory as well as an
> EntityManager.
>
> Charlie
>
>
> Tom Schindl wrote:
>> Hi,
>>
>> I'm having issues getting Hibernate to work with the Persistence-API.
>> The problem is not classloading because all JARs needed by hibernate
>> are part of the application.
>>
>> The problem is that when trying to run the application it seems as if
>> Hibernate doesn't find the persistance.xml-File located in
>> META-INF/persistence.xml. Does anybody ever got this work in RCP. I
>> searched the web but most problems seem to be related to class-loading.
>>
>> --------------8<--------------
>>
>>> 20:36:49,593 INFO Environment:584 - using JDK 1.4 java.sql.Timestamp
>>> handling
>>> javax.persistence.PersistenceException: No Persistence provider for
>>> EntityManager named hello
>>> at
>>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:55)
>>>
>>> at
>>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:33)
>>>
>>> at
>>> at.bestsolution.dataforms.test.data.DatasourceDispatcher.<init >(DatasourceDispatcher.java:35)
>>>
>>
>> --------------8<--------------
>>
>> Tom

Re: Hibernate javax.persistence.Persistence in RCP [message #463854 is a reply to message #460548]

Fri, 16 February 2007 17:34

Eclipse User

I have the same issue when using Toplink in my Java SE eclipse RCP
applications.

I do have the following code where I create the EntityManagerFactory in
addition to the EntityManager.

emf = Persistence.createEntityManagerFactory("mydb");
em = emf.createEntityManager();

I'd appreciate any help with this.

Thanks
-sud

Charle Kelly wrote:
> Hi Tom,
>
> I had a similar problem with JBsss and Hibernate.
> The solution was to create an EntityManagerFactory as well as an
> EntityManager.
>
> Charlie
>
>
> Tom Schindl wrote:
>> Hi,
>>
>> I'm having issues getting Hibernate to work with the Persistence-API.
>> The problem is not classloading because all JARs needed by hibernate
>> are part of the application.
>>
>> The problem is that when trying to run the application it seems as if
>> Hibernate doesn't find the persistance.xml-File located in
>> META-INF/persistence.xml. Does anybody ever got this work in RCP. I
>> searched the web but most problems seem to be related to class-loading.
>>
>> --------------8<--------------
>>
>>> 20:36:49,593 INFO Environment:584 - using JDK 1.4 java.sql.Timestamp
>>> handling
>>> javax.persistence.PersistenceException: No Persistence provider for
>>> EntityManager named hello
>>> at
>>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:55)
>>>
>>> at
>>> javax.persistence.Persistence.createEntityManagerFactory(Per sistence.java:33)
>>>
>>> at
>>> at.bestsolution.dataforms.test.data.DatasourceDispatcher.<init >(DatasourceDispatcher.java:35)
>>>
>>
>> --------------8<--------------
>>
>> Tom

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