QueryInvocationContext is null.

[Luís Alves <lu...@gmail.com>]

I have the following code:

@Repository
public abstract class ConfigurationRepository extends
AbstractEntityRepository<Configuration, Long> implements
        EntityRepository<Configuration, Long>, EntityManagerDelegate<
Configuration>
{


*    // FIXME: why this is null?!?    @Inject    private
QueryInvocationContext context;*

    @Inject
    private EntityManager em;

    /**
     * Find by key.
     *
     * @param key
     *            the key
     * @return the configuration
     */
    public Configuration findByKey(String key)
    {
        QConfiguration c = QConfiguration.configuration;

        return new JPAQuery<Configuration>(em).from(c).where(c.key.eq(key)).
fetchFirst();
    }

}

The *QueryInvocationContext*is null so I had to inject the EM directly. Any
idea why it's null or how to figure out why it's null?

Regards,
LA

Re: QueryInvocationContext is null.

["John D. Ament" <jo...@apache.org>]

The abstract classes probably only support limited injection.  I wouldn't
recommend doing this, if you need access to EntityManager there are helper
classes to implement that give you it, e.g. EntityManagerAware.

John

On Tue, Dec 19, 2017 at 10:16 AM Luís Alves <lu...@gmail.com> wrote:

> I have the following code:
>
> @Repository
> public abstract class ConfigurationRepository extends
> AbstractEntityRepository<Configuration, Long> implements
>         EntityRepository<Configuration, Long>, EntityManagerDelegate<
> Configuration>
> {
>
>
> *    // FIXME: why this is null?!?    @Inject    private
> QueryInvocationContext context;*
>
>     @Inject
>     private EntityManager em;
>
>     /**
>      * Find by key.
>      *
>      * @param key
>      *            the key
>      * @return the configuration
>      */
>     public Configuration findByKey(String key)
>     {
>         QConfiguration c = QConfiguration.configuration;
>
>         return new
> JPAQuery<Configuration>(em).from(c).where(c.key.eq(key)).
> fetchFirst();
>     }
>
> }
>
> The *QueryInvocationContext*is null so I had to inject the EM directly. Any
> idea why it's null or how to figure out why it's null?
>
> Regards,
> LA
>