Re: [Springframework-developer] AbstractMessageDrivenBean's ejbCreate method is not spec compliant, I am going to change it

[<tri...@tr...>]

+1 for removing it.

It looks like you are all correct - WebLogic seems to think that CreateException
should be thrown from the ejbCreate method - but from my experience it works
without this throws clause.  I don't remember where I copied my generic
messagebean implementation from, but I did not have this throws clause and
WebLogic has never complained.


This is from
/bea/weblogic700/samples/server/src/examples/ejb20/message/MessageTraderBean.java

  /**
   * This method corresponds to the create method in the home interface
   * "TraderHome.java".
   * The parameter sets of the two methods are identical. When the client calls
   * <code>TraderHome.create()</code>, the container allocates an instance of 
   * the EJBean and calls <code>ejbCreate()</code>.
   *
   * @exception               javax.ejb.CreateException if there is
   *                          a communications or systems failure
   * @see                     examples.ejb11.basic.statelessMessageDriven.Trader
   */
  public void ejbCreate () throws CreateException {

  }

Also see:
http://edocs.bea.com/wls/docs81/javadocs/weblogic/ejb/GenericMessageDrivenBean.html

My take on this is that the messagebean should throw an EJBException if there is
a communications or system failure.

Thomas


Quoting Rod Johnson <rod...@in...>:

> Yes, as the bug entries say I took the decision that it is incorrect
> according to the spec, but the WebLogic examples do throw CreateException.
> And the user reported that it _did_ still work in JBoss, so I figured that I
> didn't want to have to go test it in all EJB containers. (Ie I didn't have
> time to retest it in WLS.)
> 
> However, you probably should change it.
> 
> Regards,
> Rod
> 
> ----- Original Message ----- 
> From: "jürgen höller [werk3AT]" <jue...@we...>
> To: <spr...@li...>
> Sent: Friday, November 14, 2003 5:40 PM
> Subject: Re: [Springframework-developer] AbstractMessageDrivenBean's
> ejbCreate method is not spec compliant, I am going to change it
> 
> 
> There's a bug entry on SourceForge for this:
>
http://sourceforge.net/tracker/index.php?func=detail&aid=823990&group_id=73357&atid=537539
> 
> Juergen
> 
> ________________________________
> 
> Von: spr...@li... im Auftrag von
> Colin Sampaleanu
> Gesendet: Fr 14.11.2003 18:41
> An: spr...@li...
> Betreff: [Springframework-developer] AbstractMessageDrivenBean's ejbCreate
> method is not spec compliant, I am going to change it
> 
> 
> 
> AbstractMessageDrivenBean currently has the following ejbCreate method:
> 
>     /**
>      * Lifecycle method required by the EJB specification but not
>      * the MessageDrivenBean interface.
>      * <p>This implementation loads the BeanFactory. Don't override it
>      * (although it can't be made final): code your initialization in
>      * onEjbCreate(), which is called when the BeanFactory is available.
>      * <p>Unfortunately we can't load the BeanFactory in
> setSessionContext(),
>      * as ResourceManager access isn't permitted and the BeanFactory may
> require it.
>      */
>     public void ejbCreate() throws CreateException {
>         loadBeanFactory();
>         onEjbCreate();
>     }
> 
> This is actually not spec compliant. If you look at the spec, section
> 15.7.3, it states that MessageDrivenBeans must not throw application
> exceptions. CreateException is an application exception, and in fact
> JBoss, for example, will not allow an MDB with this create method to load.
> 
> So I am going to change this to remove the exception, after I get back
> from lunch. If anybody disagrees with me, before or after that, please
> let me know.
> 
> (lucky me, still putzin' around with legacy EJB code...)
> 
> Regards,
> Colin
> 
> 
> 
> 
> 
> -------------------------------------------------------
> This SF. Net email is sponsored by: GoToMyPC
> GoToMyPC is the fast, easy and secure way to access your computer from
> any Web browser or wireless device. Click here to Try it Free!
> https://www.gotomypc.com/tr/OSDN/AW/Q4_2003/t/g22lp?Target=mm/g22lp.tmpl
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
> 
> 
> 
> 
> -------------------------------------------------------
> This SF. Net email is sponsored by: GoToMyPC
> GoToMyPC is the fast, easy and secure way to access your computer from
> any Web browser or wireless device. Click here to Try it Free!
> https://www.gotomypc.com/tr/OSDN/AW/Q4_2003/t/g22lp?Target=/g22lp.tmpl
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
> 
> 
> 
> 
> -------------------------------------------------------
> This SF. Net email is sponsored by: GoToMyPC
> GoToMyPC is the fast, easy and secure way to access your computer from
> any Web browser or wireless device. Click here to Try it Free!
> https://www.gotomypc.com/tr/OSDN/AW/Q4_2003/t/g22lp?Target=mm/g22lp.tmpl
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer
>