Re: Static method

From:
Logan Shaw <lshaw-usenet@austin.rr.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 04 May 2008 17:49:33 -0500
Message-ID:
<481e3cde$0$20199$4c368faf@roadrunner.com>
ojvm24@gmail.com wrote:

I have a static method which has the following signature.

<code>
public static List createBeanCollection(){
}
</code>

I can't chage this, now this is the problem. how can i pass it
parameters
so in the method i can use them and return a dinamic list of objects,
i'm using ibatis
for test purposes i did the following.

<code>
public static List createBeanCollection(){
   MiBean m = new MiBean();
   m.setNombre("prueba");
   List beans = new ArrayList();
   beans.add(m);
   return beans;

}
</code>

ok, it works fine, but now i want to replace the list i created by
hand with an
object that makes a query over a db, so the code would be this.
<code>
public static List createBeanCollection(){
   List beans = miDao.onbtenObjetosPorId(valor);//dao that retrives
object from a db.
   return beans;
}
</code>
but i cant use the "valor" parameter, due is not possible to use a no
static-variable
in a static method. at the moment i've resolved it in this way


This is an utter hack, but I suppose you're forced into creating some
sort of hack. Anyway, perhaps you could solve this problem by using
java.lang.reflect.Proxy to dynanically create a new Class object that
implements the required interface. For every different value of 'valor'
(your variable that you are being forced to make static), you'd have
a different class. It's uuuuuuugly, but it gets around the limitation
of threads or re-entrant code stomping on the static variable.

I'm assuming here, by the way, that Proxy can implement static methods,
which seems logical, but I don't think I've tried that.

   - Logan

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