Re: [Springframework-developer] Dynamic properties

[Alexandru P. <apo...@ez...>]

#: on behalf of Dain Sundstrom :: 5/30/2005 5:54 PM :#
> On May 30, 2005, at 12:19 AM, Alexandru Popescu wrote:
> 
>> If you search the forum you will find different solutions to the  
>> above problem. I was looking for
>> the same thing for a while, and currently i am quite happy with a  
>> modified solution I've found on forum.
> 
> Can you give me a hint on what to search for?  I could spend hours  
> looking for this.
> 

1/ Run-time Dependency Injection
2/ Prototype bean constructor/factory runtime args
3/ JIRA issues SPR-334 and SPR-695

pls let me know if these are what you are looking for.

>> For the 2nd question: do you need another method call than the  
>> after-init?
> 
> I'm not sure what you mean. In geronimo the normal geronimo bean  
> creation process is:
> 
> 1) call constructor
> Foo foo = new Foo(a, b, c)
> 
> 2) setter inject including dynamic properties (order is not important)
> foo.setBar(bar)
> foo.setAtttibute("baz", baz);
> foo.setCheese(cheese);
> foo.setAtttibute("donkey", donkey);
> 
> 3) call initialization done method
> foo.doStart();
> 
> 
> So all injection must occur before the initialization method.  I can  
> think of two ways to support dynamic properties directly in spring:
> 
> 1) specifically support them by a dynamicSetterName field to the bean  
> definition, and either automatically assume that any property without  
> a setter is a dynamic property, or have some way for a user to flag a  
> property as dynamic
> 
> 2) generically support additional initialization methods (with  
> arguments) before the final after-init method is called.  This would  
> require adding a list of method names with args to invoke.  For the  
> args, you could just the same matching rules as constructor injection.
> 
> The first option is simpler and cleaner, but the second is much more  
> powerful (more complex and a bit ugly).
> 
> -dain
> 
> 

I see. Take a look at the possible solutions and if those are not good enough maybe somebody else
will be able to provide another way to do it.

cheers,
:alex |.::the_mindstorm::.|

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