[seam-dev] XML Configuration of producer fields

[Pete Muir]

On 25 Aug 2010, at 11:01, Stuart Douglas wrote:

> 
> On 24/08/2010, at 9:16 PM, Pete Muir wrote:
> 
>> Agreed, this would be very useful. 
>> 
>> The only (practical) issue I see is that Weld currently doesn't expect AnnotatedTtypes to be respected for EE-style injection (in some/all cases). I suspect that it should (nb. this is large a change in the container integration contract).
>> 
>> On 24 Aug 2010, at 09:39, Stuart Douglas wrote:
>> 
>>> I think that seam-xml needs to ability to programatically add resource (and other) producer fields.  My proposed syntax is:
>>> 
>>> <s:EntityManager>
>>> <s:producerField/>
>>> <s:PersistenceContext unitName="customer" />
>>> <my:CustomerDatasource/>
>>> </s:EntityManager>
>>> 
>>> which would be equivalent to:
>>> 
>>> @Produces
>>> @PersistenceContext(unitName="main")
>>> @CustomerDatasource
>>> EntityManager entityManager;
>>> 
>>> This will also support other types of producer fields, such as weld extension generic bean producer fields and primitives:
>>> 
>>> 
>>> <s:String>
>>> <s:producerField/>
>>> <my:ApplicationVersion />
>>> <s:value>3.0.0.GA</s:value>
>>> </s:String>
>> 
>> I think it should be:
>> 
>> <ee:EntityManager>
>> <ee:Produces />
>> <ee:PersistenceContext unitName="customer" />
>> <my:CustomerDatasource/>
>> </ee:EntityManager>
>> 
>> What was the reason for introducing the special producerField keyword?
> 
> It was to distinguish these from normal bean declarations, however @Produces will never be applied directly to a bean class, so that should be enough.

Ah, so you aren't applying this to an existing field?