Re: [Springide-eclip-developer] Distribution of constructor arguments

[Torsten J. <tor...@on...>]

Andreas,

this is another usecase of parent beans I wasn't aware of. With all the 
flexibility of Spring bean configuration it's very hard to develop a 
validator which supports all the allowed usecases without creating the 
entire bean factory :-(

I'm not sure how to handle constructor arguments in parent beans 
correctly. If no bean class was specified or the bean is abstract then 
checking the constructor arguments could be skipped. But what if a bean 
class was specified for a non-abstract parent bean and (like in your 
case) the number of constructor arguments doesn't fit because the child 
bean's constructor arguments have to be added?

Currently I don't see any other option than dropping validation of 
constructor arguments completely.
Any thoughts?

Cheers,
Torsten


On 08.11.2004, at 13:29, Andreas Senft wrote:

>
> Hi,
>
> I recently installed Spring-IDE 1.1.0 on eclipse 3.0.1
> and encountered a problem.
>
> Scenario:
>
> I have a class with a constructor which takes 3
> arguments. In my configuration I have a parent bean
> (as template) which defines only the first argument.
> The bean specifies the "class" attribute.
>
> Then I have a bean which refers the above bean as
> parent and declares the other two constructor
> arguments.
> Spring-IDE complains in both beans that the class has
> no constructor with 1 or 2 arguments, respectively.
>
> I would expect that the specifications for the "child"
> bean should be merged with the specifications of the
> parent bean. The parent bean should, however, not be
> validated in this case. Note that the error on the
> parent bean also occurs if the parent bean is
> specified as "abstract".
>
> Overall, Spring-IDE is really fun to work with!
>
> Regards,
> Andreas
>
>
> 	
>
> 	
> 		
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