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problem with entity classes

 
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anaq



Joined: 21 Sep 2009
Posts: 44
PostPosted: Wed Oct 07, 2009 3:14 pm    Post subject: problem with entity classes Reply with quote
Hi all,

I have a problem with the entity classes in my ejb project. My situation : I have database with some tables. So I've created entity classes using netbeans wizard. My problem is, that I can get data only from one table!

Examples:
This returns records from database correctly
Code:

List<Client> clients = em.createNamedQuery("Client.findAll").getResultList();


This returns only empty list, but there are records
Code:

List<User> users = em.createNamedQuery("User.findAll").getResultList();


I've tried to add new tabels to the database, but I can not get any data from them, only empty lists. The only table, which returns data, is Client.

There is one more thing. When I look in project node -> Configuration Files -> ejb.dbschema, I find only two tables - Client and User, but there are four tables in the database.

I've tried to delete all entity classes and add them once again. The result was the same - I can get data only from one table.

I'm using Netbeans 6.7.1, MySQL database.

Any idea what to do or how to debug this?

Thank you for any help.

Michal
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Futaleufu_John
Posted via mailing list.
PostPosted: Wed Oct 07, 2009 6:26 pm    Post subject: problem with entity classes Reply with quote
Have you tried to recapture the schema from the database? To do that,
right-click on the dbschema file and select Recapture Schema from Database.

Also, take a second look a the findAll query that returns an empty list to
make sure it's correct.


anaq wrote:
Quote:

I have a problem with the entity classes in my ejb project. My situation :
I have database with some tables. So I've created entity classes using
netbeans wizard. My problem is, that I can get data only from one table!

I've tried to add new tabels to the database, but I can get any data from
them, only empty lists. The only table, which returns data, is Client.

There is one more thing. When I look in project node -> Configuration
Files -> ejb.dbschema, I find only two tables - Client and User, but there
are four tables in the database.



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anaq



Joined: 21 Sep 2009
Posts: 44
PostPosted: Thu Oct 08, 2009 10:40 am    Post subject: Re: Reply with quote
Thank you for reply.

All my attempts failed, so I created everything once again - new database, new project and now it works. I don't know, where was the problem, hopefull it will not return.

Michal
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