why @Inject @Named is not working

[nimo22]

I have this:

@Inject @Named Users findUser;

and the compiler says:

"No bean is eligible for injection to the injection point"

when using this instead:

@Injec Users findUser;

the compiler does not complain.

But I want to reference findUser by

#{findUser}

and have to use the @Named - why does this not work?

(Users is a EntityBean, but I do not want to persist a new instance, I only want to use it as a plain object)

[asiandub]

But I want to reference findUser have to use the @Named

@Named is a annotation for bean construction, not for bean injection. Using it with @Inject doesn't make sense.

@Produces @Named  Users findUser;

is what you are looking for...

[nimo22]

hello,

@Named is a annotation for bean construction, not for bean injection.

got it. thanks.

(it works with produces)

[nickarls]

Actually @Named at injection points is OK but as the spec says

The use of @Named as an injection point qualifier is not recommended, except in the case of integration with legacy code
that uses string-based names to identify beans.

[nimo22]

Hello Nicklas,

thanks I red that. So this

@Inject @New @Named("hello") bean;

is the same as seams 2:

@In(create=true) bean;

with el:

#{bean}

Am I right?

[nickarls]

Well you always have something injected (or a deployment error) so there is no create=true equivalence. And to use #{bean} you need to have

@Produces @Named X bean

somewhere.

[xsalefter.xsalefter.yahoo.com]

Hmmm.. I think @Produces @Named X bean is a replacement for @Out in seam. No? And if @Produces @Named is not recommended, how to do it in recommended way?

[nickarls]

nothing wrong with @Produces @Named, it's for EL exposure. It's the injection thats not recommended (inter-bean injection)

[andygibson.contact.andygibson.net]

@Produces is more a replacement for the @Factory annotation. Strictly speaking, there is no outjection anymore.

Named is OK for producing beans, it is required for exposing objects to EL. However, the plan is to use more type safe qualifiers for matching injection points instead of type unsafe string based names.

Cheers,

Andy Gibson