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From David Jencks <>
Subject Re: Dynamically adding ModuleBuilderExtensions and NamingBuilders
Date Wed, 12 Nov 2008 23:08:27 GMT

On Nov 12, 2008, at 1:07 PM, Vamsavardhana Reddy wrote:

> As part of deploying SCA enhanced Web Applications in Geronimo with  
> Tuscany Plugin, I am looking to add a ModuleBuilderExtension (MBE)  
> to TomcatModuleBuilder and a NamingBuilder.  The purpose of the MBE  
> is to add SCA related EmbeddedRuntimeGBean to the web application  
> config which will deploy the application composite to the SCA  
> domain.  The purpose of the NamingBuilder is to add SCA Domain and  
> other objects (required for injection of SCA references in servlets  
> etc.) into the WebAppContext.  I am seeing that the MBE and  
> NamingBuilder GBeans which are added as part of the Tuscany Plugin  
> can not get dynamically added to the MBEs configured in tomcat6- 
> builder config and NamingBuilders configured in j2ee-deployer  
> config.  The one option I see is to update the plan.xml files in  
> tomcat6-builder and j2ee-deployer configs and rebuild the server.   
> But this won't be like the MBE and NamingBuilder is getting added as  
> part of Tuscany-plugin installation.  The other option is to add  
> (don't know if it is easy to do this hack) the MBE and NamingBuilder  
> to the corresponding collections in TomcatModuleBuilder and  
> NamingBuilder GBeans.  I appreciate any suggestions/comments or  
> inputs on any alternate approach that I am not seeing.

Yup, this is a problem.  So far we've sidestepped it by just adding  
all the known desired MBE's to the appropriate *-deployer plan, and as  
you have found this is non-extensible.

One possiblitly would be to define marker interfaces such as WebMBE,  
EjbMBE, etc that the appropriate MBE's could implement and use the  
interface in the references pattern.

Anyone have a better idea?

david jencks

> Thanks,
> Vamsi

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