[seam-dev] Will Seam 3 be "batch" friendly, ie be able to minimally run outside any container?

[Pete Muir]

Yes :-)

We're quite a long way there already, with Weld-SE support.

Pete R, are you interested/able to work on an example for Weld SE that adds JPA support?

Pete


On 7 Apr 2010, at 01:13, denis.forveille at gmail.com wrote:

> Are there plan to have a way to run a pure j2se+JPA+CDI+Weld application
> containing Seam 3 components?
> 
> In it's time, I have open this JIRA/feature request to add this feature 
> to Seam 2: https://jira.jboss.org/jira/browse/JBSEAM-1680
> 
> Most of our applications have a need to run "batch" processes that run 
> outside a container, ie process thousand of "items" during off peak 
> hours (ie at night), but share many of the business logic and the JPA 
> model. Our applications are designed to isolated "shared" business logic 
> (ie batch+web) in a separate module and use only "Application Scope" 
> Seam 2 components
> 
> Currently we use some kind of "JUnit" techniques to boostrap our apps, 
> ie manual bootstratp of the JPA data source (Hibernate), manual control 
> of the transaction boundaries and manually injecting Application Scope 
> Components.
> We have written a kind of "SeamTest" class that scans all of our 
> components that may be called by the batch process and inject the base 
> objects (logguer, other managers, EM etc..).
> Something that we currently miss is to reuse the PDF and Excel 
> components as they depends on facelets/JSF and cannot easily run outside 
> some kind of container...
> 
> I don't have a deep knowledge of CDI and Weld, but it seem those should 
> help for this. The questions remains for Seam 3.
> 
> Is there some interest for this? The first thing could be to define the 
> specs and "limits" of what can be done and what cannot (Define the 
> authorized scopes, the way the EM ans transactions are managed, what 
> "modules" (I18N, PDF etc ) can be used. Of course anything related to
> web woule not be allowed (Security, "pages.xml/navigation", etc..), and 
> maybe define some kind of "SeamBatch" class that would take care of all 
> the Seam components, and maybe add some batch specific annotations (or 
> non-container specific) for transaction boundaries
> 
> Thx
> 
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