[cdi-dev] [JBoss JIRA] Commented: (CDI-117) Add BeanManager to a ServletContext attribute

Adam Bien abien at adam-bien.com
Mon Apr 25 03:18:25 EDT 2011


It would also make the integration with APIs like JAX-RS easier. 
On 25.04.2011, at 03:33, Cloves Almeida (JIRA) wrote:

> 
>    [ https://issues.jboss.org/browse/CDI-117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12597712#comment-12597712 ] 
> 
> Cloves Almeida commented on CDI-117:
> ------------------------------------
> 
> This is very useful for non-servlet environment (plain JavaSE, or frameworks like Play! that does not use Servlet).
> 
> Wouldn't it be better if the spec specified a "BeanManagerFactory" factory class that could return the proper BeanManager regardless of environment? Implementation would check JNDI, then Servlet Context, then fallback on singleton or custom lookup service.
> 
> CDI is just too useful to be constrained on JEE/Servlet only environments.
> 
>> Add BeanManager to a ServletContext attribute
>> ---------------------------------------------
>> 
>>                Key: CDI-117
>>                URL: https://issues.jboss.org/browse/CDI-117
>>            Project: CDI Specification Issues
>>         Issue Type: Feature Request
>>         Components: Java EE integration
>>   Affects Versions: 1.0
>>           Reporter: Christian Kaltepoth
>>           Priority: Minor
>> 
>> CDI 1.0 defines a JNDI lookup as the standard way to obtain the BeanManager for resources not managed by the CDI environment. However in a servlet environment it would be much easier to get the BeanManager from a standardized servlet context attribute. This would be also a major simplification in environments that don't support JNDI (for example GAE) or that don't allow to use the standard JNDI name for the BeanManager (for example Apache Tomcat).
>> This topic was already discussed on weld-dev about a year ago [1]. Weld 1.0 already supports this [2] and OpenWebBeans also added this feature [3]. Unfortunately Weld 1.1 changed the attribute to a Weld-specific name in [4] which currently leads to much confusion [5].
>> As both of the major CDI implementations support this feature I think it should finally be put into the spec.
>> [1] http://lists.jboss.org/pipermail/weld-dev/2010-March/002359.html
>> [2] https://issues.jboss.org/browse/WELD-202
>> [3] https://issues.apache.org/jira/browse/OWB-360
>> [4] https://jira.jboss.org/browse/WELD-679
>> [5] http://seamframework.org/Community/GettingBeanManagerFromServletContextWithWeld11
> 
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