RE: [Springframework-developer] Serializable support

[Alef A. <al...@jt...>]

A serializable beanfactory in my opinion is not a really good option,
what about the beans it contains? Should they be serializable as well
(which is what a serializable beanfactory would indicate as far as I'm
concerned).

We use the BeanFactory in EJBs a lot and we declare it as being
transient and force re-initialization an activation. This just works
fine. When limiting the amount of beans in a BeanFactory for an EJB and
creating multiple beanfactories for multiple different EJBs, it
shouldn't be that big an overhead.

Alef


> -----Original Message-----
> From: spr...@li... 
> [mailto:spr...@li...]
>  On Behalf Of MacMahon, Mark
> Sent: Tuesday, January 06, 2004 1:34 PM
> To: 'spr...@li...'
> Subject: [Springframework-developer] Serializable support
> 
> 
> 
> Hi All,
> 
> I have got a package of Spring configured objects that I 
> would like to use interchangeably in both a web application and 
> an EJB application (from SFSB).
> Some of my Objects are BeanFactoryAware so that they can 
> create on demand, prototype instances of spring configured objects.
> 
> All works well in web application mode. However I cannot get 
> it to work reliably in ejb mode due to the fact that 
> BeanFactory is not serializable - exceptions on passivation 
> of the SFSB.
> 
> Why isn't BeanFactory serializable? I can see that the Log 
> class is being stored as a member rather than a class 
> variable in some of the spring classes but surely this can be 
> changed easily?
> 
> 
> Shouldn't the BeanFactoryWare interface be documented so as 
> to discourage use of it in beans that are used in an EJB environment?
> 
> Is there any way that I can avoid reverting back to using a 
> typical java singleton for access to the BeanFactory for the 
> scenario that I have described (loading prototypes on demand)
> 
> 
> I am also getting problems passivating the SFSB due to the 
> fact that AbstractEnterpriseBean stores its logger as a 
> member rather than a class
> variable:
> Is this convenience really worth sacrificing serializable support?
> 
> abstract class AbstractEnterpriseBean implements EnterpriseBean 
> {
> 
> 	/** Logger, available to subclasses */
> 	protected final Log logger = LogFactory.getLog(getClass());
> 	
> 	//Change to static to support serializable
> 	//private final static Log logger = 
> LogFactory.getLog(AbstractEnterpriseBean.class);
> 	
> }
> 
> 
> 
> Please forgive me if I am addressing the wrong mailing list here!
> 
> Any help appreciated!
> Thanks in advance!
> 
> Mark
> 
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