I have setup my DAO as a Tapestry service in the AppModule as:
public class AppModule
{
public static void bind(ServiceBinder binder)
{
binder.bind(BranchDAO.class, BranchHibernateDAO.class);
}
}
Then, I try to inject the session as follows:
public class BranchHibernateDAO implements BranchDAO {
@Inject
private Session session;
�...@suppresswarnings("unchecked")
public Object find( Class c , BigDecimal id)
{
return session.get(c, id);
}
}
I still get a NULL session.
Following the suggestion by Kalle, I injected the session to a page. Then,
passed the session to my DAO in the contructor. That worked! However, I would
rather keep the code cleaner by injecting the session directly into the DAO.
Any suggestion would be greatly appreciated.
--- On Wed, 11/10/10, Kalle Korhonen <kalle.o.korho...@gmail.com> wrote:
From: Kalle Korhonen <kalle.o.korho...@gmail.com>
Subject: Re: session is NULL
To: "Tapestry users" <users@tapestry.apache.org>
Date: Wednesday, November 10, 2010, 1:48 AM
@Inject is for pages. Make your DAO a Tapestry service and inject the
session to it via its constructor.
Kalle
On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal <anasmug...@yahoo.com> wrote:
> I have setup my Tapestry project using the Maven archetype. Then, I setup my
> hibernate.cfg.xml file with references to my hibernate mapping files. (I am
> not using annotations for hibernate.)
>
> Now, I have setup a simple DAO object to try to retrieve an object from the
> database:
>
> public class BranchDAO {
>
> @Inject
> private Session session;
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id); // session is NULL here
> }
> }
>
>
> I get a NULL pointer exception because my session does not seem to be
> initialized.
>
> Searching online, I came accross:
> http://wiki.apache.org/tapestry/SessionPagePersistence
>
> I have not setup any hivemind configuration or any of the suggested classes
> on that wiki page. Please advise me what do I need to be able to fetch
> objects using Tapestry-Hibernate. I don't know where to place the hivemind
> configuration file -- if I need it.
>
> I am new to Tapestry. Please bear with me.
>
> Thank you for your kind assistance.
> --Anas Mughal
> http://anas-mughal.com
>
>
>
>
>
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