Comments on: Getting Started with JSF 2.0 and CDI in JEE 6 part 1 http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/ Open Source Projects & Technical Writings Wed, 18 Jan 2012 00:05:55 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Andrea http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-15710 Andrea Mon, 08 Nov 2010 21:52:48 +0000 http://www.andygibson.net/blog/?p=647#comment-15710 I tried to make the example webapp, with a difference: the war is contained in an EAR. In this case I can't deploy, due to java.lang.ClassNotFoundException: WEB-INF.classes.eedemo.DefaultItemDao. Does anyone have any suggestion to make this simple example working? In my app, I want an EAR containing some WAR and some EJB_JARs packages. Thank you. Andrea I tried to make the example webapp, with a difference: the war is contained in an EAR. In this case I can’t deploy, due to java.lang.ClassNotFoundException: WEB-INF.classes.eedemo.DefaultItemDao.
Does anyone have any suggestion to make this simple example working? In my app, I want an EAR containing some WAR and some EJB_JARs packages.
Thank you. Andrea

]]> By: chris http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14708 chris Wed, 01 Sep 2010 06:59:28 +0000 http://www.andygibson.net/blog/?p=647#comment-14708 Thank you Andy, that's it. And your completely right! I used a test input post to pass values from one page to the other. Thanks again. Thank you Andy, that’s it. And your completely right! I used a test input post to pass values from one page to the other. Thanks again.

]]> By: Andy Gibson http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14707 Andy Gibson Tue, 31 Aug 2010 18:09:33 +0000 http://www.andygibson.net/blog/?p=647#comment-14707 Hi Chris, Add javax.enterprise.context.@RequestScoped to the bean to give it scope. Currently the bean is without a scope (my bad). If it uses the default (no) scope then a new bean is created for each call. One is created for the setter and another for the getter. Adding request scoped means the same one will be used for the life of the request. I'm guessing you have an input box or something on the page to set the value on postback? Cheers, Andy Gibson Hi Chris,

Add javax.enterprise.context.@RequestScoped to the bean to give it scope. Currently the bean is without a scope (my bad). If it uses the default (no) scope then a new bean is created for each call. One is created for the setter and another for the getter. Adding request scoped means the same one will be used for the life of the request. I’m guessing you have an input box or something on the page to set the value on postback?

Cheers,

Andy Gibson

]]> By: chris http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14706 chris Tue, 31 Aug 2010 06:31:23 +0000 http://www.andygibson.net/blog/?p=647#comment-14706 Hello Andy, thanks a lot! I tried this with JBoss 6.0 and it worked. Just one thing: Upgrading to an EJB: I was not able to store form data in a stateful session bean. Do I have to create a local/remote interface? I annotated the MessageServerBean with @stateful, created a String attribute, getter, setter. The result was, that the setter was called with the right string, but the getter always returned null. Hence new new object was created each time the page was reloaded. Can you help me please ? Thanks Chris Hello Andy, thanks a lot! I tried this with JBoss 6.0 and it worked.
Just one thing: Upgrading to an EJB:

I was not able to store form data in a stateful session bean. Do I have to create a local/remote interface?
I annotated the MessageServerBean with @stateful, created a String attribute, getter, setter.
The result was, that the setter was called with the right string, but the getter always returned null. Hence new new object was created each time the page was reloaded. Can you help me please ? Thanks Chris

]]> By: Andy Gibson http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14705 Andy Gibson Mon, 30 Aug 2010 15:22:24 +0000 http://www.andygibson.net/blog/?p=647#comment-14705 Diego, probably not because they come from different places. Hibernate needs to construct entities and CDI constructs beans for injection. If you did this, it would just inject a new instance of the entity. How would you load an entity with a specific ID? (CDI wouldn't know how). See my latest blog post (http://www.andygibson.net/blog/tutorial/pattern-for-conversational-crud-in-java-ee-6/) on how to handle entities. Cheers, Andy Gibson Diego, probably not because they come from different places. Hibernate needs to construct entities and CDI constructs beans for injection. If you did this, it would just inject a new instance of the entity. How would you load an entity with a specific ID? (CDI wouldn’t know how).

See my latest blog post (http://www.andygibson.net/blog/tutorial/pattern-for-conversational-crud-in-java-ee-6/) on how to handle entities.

Cheers,

Andy Gibson

]]> By: Diego http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14703 Diego Mon, 30 Aug 2010 00:27:31 +0000 http://www.andygibson.net/blog/?p=647#comment-14703 Good night Andy. It is possible to perform the injection of persistent classes? Example: @ Entity public class ClientBean implements Serializable { / / Attributes } @ Named @ SessionScoped public class ClientController implements Serializable { @ Inject private ClientBean clientBean; } Good night Andy.

It is possible to perform the injection of persistent classes?

Example:

@ Entity
public class ClientBean implements Serializable {
/ / Attributes
}

@ Named
@ SessionScoped
public class ClientController implements Serializable {

@ Inject
private ClientBean clientBean;

}

]]> By: Paul Vincent http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14425 Paul Vincent Sun, 14 Mar 2010 19:31:02 +0000 http://www.andygibson.net/blog/?p=647#comment-14425 Thank's Andy Gibson, for this preview of two of the best players actually : Seam, an evolution of JEE, transformed in the JSR-299, and Facelets, now the default view of JSF2.0. Thank you very much, Seam (Gavin) Thank’s Andy Gibson, for this preview of two of the best players actually : Seam, an evolution of JEE, transformed in the JSR-299, and Facelets, now the default view of JSF2.0.
Thank you very much, Seam (Gavin)

]]> By: Andy Gibson http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14363 Andy Gibson Mon, 08 Feb 2010 06:38:15 +0000 http://www.andygibson.net/blog/?p=647#comment-14363 Apologies Daniel, I thought I had replied to your comment. If it is the thing I think you are seeing, I believe this is an NPE on redeploy where it cannot restore the session state so the session data prior to the redeploy is lost. While this might be an error, its not one I care about to much since the redeploy works just fine, just the session information is lost which I can live with for the things I do with it. In short the answer is, no I don't have a work around, it seems to be fixed though, but even if it isn't in your current version, don't worry about it unless having a reset session state on redeploy is a big deal. Cheers, Andy Apologies Daniel, I thought I had replied to your comment.

If it is the thing I think you are seeing, I believe this is an NPE on redeploy where it cannot restore the session state so the session data prior to the redeploy is lost. While this might be an error, its not one I care about to much since the redeploy works just fine, just the session information is lost which I can live with for the things I do with it. In short the answer is, no I don’t have a work around, it seems to be fixed though, but even if it isn’t in your current version, don’t worry about it unless having a reset session state on redeploy is a big deal.

Cheers,

Andy

]]> By: Daniel http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14341 Daniel Sun, 24 Jan 2010 06:01:49 +0000 http://www.andygibson.net/blog/?p=647#comment-14341 How were you able to work around the problem one of your other readers submitted here: https://jira.jboss.org/jira/browse/WELD-350 (NPE on redeploy). There is a comment 13/1 to say that it is fixed in trunk. Did you need to patch your GlassFish installation? I have tried starting GlassFish with a different weld-osgi-bundle I found here: http://oss.sonatype.org/content/groups/jboss/org/jboss/weld/weld-osgi-bundle/1.0.1-SNAPSHOT/ How were you able to work around the problem one of your other readers submitted here: https://jira.jboss.org/jira/browse/WELD-350 (NPE on redeploy).

There is a comment 13/1 to say that it is fixed in trunk. Did you need to patch your GlassFish installation?

I have tried starting GlassFish with a different weld-osgi-bundle I found here:
http://oss.sonatype.org/content/groups/jboss/org/jboss/weld/weld-osgi-bundle/1.0.1-SNAPSHOT/

]]> By: GlassFish v3 Resources and Links – Part 2 | Developer @ UniUrs http://www.andygibson.net/blog/tutorial/getting-started-with-jsf-2-0-and-cdi-in-jee-6-part-1/comment-page-1/#comment-14337 GlassFish v3 Resources and Links – Part 2 | Developer @ UniUrs Sat, 16 Jan 2010 01:09:38 +0000 http://www.andygibson.net/blog/?p=647#comment-14337 [...] Getting Started with JSF 2.0 and CDI in JEE 6 part 1 [...] [...] Getting Started with JSF 2.0 and CDI in JEE 6 part 1 [...]

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