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From Rick McGuire <rick...@gmail.com>
Subject Re: [bluprint + xbean-reflect] Use of factories
Date Thu, 23 Apr 2009 09:30:52 GMT
Guillaume Nodet wrote:
> When trying to implement the dedens-on attribute for blueprint, I had
> to find my way in xbean-reflect about constructor recipes and nested
> recipes.
> In the ObjectRecipe, a factory-method can be set so that the object is
> built by calling a static method or an instance method.
> This will be very useful when implementing the factory stuff in blueprint.
> However, I think there is a mismatch here.
> In xbean-reflect, the recipe is used to create both the factory (in
> case of an instance factory), then the factory method is called to
> create the final object.    In blueprint, there is a notion of factory
> component, which should be built by its own recipe, then used as a
> reference to create the object using arguments if any, then populating
> the created beans using properties.
>   
One additional thing to you need to account for here.  The referenced 
factory component can be either a
<component> or a <reference> element, so it might not even be an object 
instantiated in the current
context.

Rick
> I'd like to enhance xbean-reflect to support such factory instances by
> references, but it would break any existing code relying on the
> current factory mechanism.
> Is there a need to support backward compatibility on this ?
>
>   


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