JBossDeveloper

Wrap the two values you want outjected in a class, then you'll have both of them available once you produce them. So your producer will produce the wrapper object and set any data you need on that object. A nice side effect of this is being able to inject that wrapper object and modify any of it's state, just the same as you could in Seam 2.

Hi Jason,

Do you know how to migrate Seam 2's Framework EntityHome to Seam3? Or it still need to wait for Seam 3.1 (Shane ever said Seam 2' framework will be upgraded to Seam 3.1). Thanks,

Have a good one!

Shenghe

We've toss around a few ideas but nothing concrete yet.

Take a look at https://github.com/mojavelinux/socialize-workshop/blob/master/src/main/java/com/socialize/account/Registration.java, https://github.com/mojavelinux/socialize-workshop/blob/master/src/main/java/com/socialize/status/NewStatusProducer.java, and https://github.com/LightGuard/seam-example-confbuzz/blob/develop/src/main/java/seam/example/confbuzz/ConferenceInstance.java for some possible ideas in the mean time.

<s:convertEntity> - no longer needed

multiple conversation/workspace control features - ConversationScope still exists

application/entity framework - Seam Forge is on a great way!

So, what is the Problem?

Florian Hell wrote on Jun 30, 2011 08:00:


<s:convertEntity> - no longer needed

multiple conversation/workspace control features - ConversationScope still exists

application/entity framework - Seam Forge is on a great way!

So, what is the Problem?

How exactly does Seam Forge address any of the 3 items I listed? AFAIK Seam Forge is replacing seam-gen and also provides some very nice features for rapid prototyping and code manipulation via cli. But I was not aware of the fact that it would provide JSF tag libs, enhancements to the current CDI single conversation per session paradigm and an entity framework like it used to be in Seam 2?

I must have missed that so if you don't mind please point me to the documentation or source where I can find all this in Seam Forge? I would very much appreciate it.

My Seam 2 application uses xhtml templates for email generation and Seam 2 pdf tags for pdf generation. Is there a way to do it in Seam 3 and if there is no such functionality yet - when it will be (planned to be) available?

XHTML templates are not planned in Seam 3 (thought they could be done by creating another template provider). For email you'll want to look at the Seam Mail (which hasn't been released just yet, but should be stable, there are others using it production that I know). For PDF please look at Seam Reports. Feel free to contact the respective authors for ideas and contributions regarding xhtml.

How do I do Identity.instance() used in a class not created by CDI (so @Inject doesn't work there)?

Geoffrey De Smet wrote on Jul 06, 2011 03:42:


How do I do Identity.instance() used in a class not created by CDI (so @Inject doesn't work there)?

Here's the code you'll want to use for this:

public abstract class BeanManagerUtils
{
   @SuppressWarnings("unchecked")
   public static <T> T getContextualInstance(final BeanManager manager, final Class<T> type)
   {
      T result = null;
      Bean<T> bean = (Bean<T>) manager.resolve(manager.getBeans(type));
      if (bean != null)
      {
         CreationalContext<T> context = manager.createCreationalContext(bean);
         if (context != null)
         {
            result = (T) manager.getReference(bean, type, context);
         }
      }
      return result;
   }

   @SuppressWarnings("unchecked")
   public static CreationalContext<Object> injectNonContextualInstance(final BeanManager manager, final Object instance)
   {
      if (instance != null)
      {
         CreationalContext<Object> creationalContext = manager.createCreationalContext(null);
         InjectionTarget<Object> injectionTarget = (InjectionTarget<Object>) manager
                  .createInjectionTarget(manager.createAnnotatedType(instance.getClass()));
         injectionTarget.inject(instance, creationalContext);
         return creationalContext;
      }
      return null;
   }
}

Let's walk through this a bit to understand it. The first method, getContextualInstance is what you specifically asked about. You pass it the BeanManager (easiest way to do this is to inject it from somewhere, or (less optimally) have some class which extends Solder's BeanManagerAware and invoke getBeanManager()) and the class (in your example Identity.class). It will then pass you a contextual (active) instance of the type. This does the same as Seam 2's instance() methods.

The next method, injectNonContextualInstance is useful if you have a class with CDI annotations that is not picked up by CDI at deploy time (maybe some classes in a library that doesn't have a beans.xml). This will allow that object to be created and have injections performed.

ViewConfig is documented in the Seam Faces documentation:

http://docs.jboss.org/seam/3/faces/latest/reference/en-US/html/viewconfig.html

ViewConfig is documented in the Seam Faces documentation:
http://docs.jboss.org/seam/3/faces/latest/reference/en-US/html/viewconfig.html

Thanks for answering!
I've already read the these documentation, but i couldn't find out how to do the example I've asked for (how to create a <param>).

Marcel Bussien wrote on Oct 08, 2011 03:24:


Hi Jason, what is the equivalent of
        @RequestParameter
        Long gid;
in Seam 3?

they say 'RequestParam can not resovet to a type'

   @Inject @RequestParam
   private int [String] gid;

dosn't work nether :-(

Thanks for answering!

The documentation for this is here - http://docs.jboss.org/seam/3/latest/reference/en-US/html/injectablerefs.html#injectablerefs.request_param.  Are you using the latest beta release of Seam (3.1.0.Beta3)?  If so, then request parameter injection support is provided by Solder.  If you're using an earlier version, then you need to be adding the Seam Servlet jar to your project.