Re: Static method

From:
"ojvm24@gmail.com" <ojvm24@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sat, 3 May 2008 18:59:32 -0700 (PDT)
Message-ID:
<c5f44171-4d34-45fb-971c-0a0721d74c32@t12g2000prg.googlegroups.com>
On 3 mayo, 15:11, Arne Vajh=F8j <a...@vajhoej.dk> wrote:

ojv...@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

<code>
public static int valor;//the variable was declared as static.

public static List createBeanCollection(){
   List beans = miDao.onbtenObjetosPorId(valor);//i can use it now
   return beans;
}
</code>
however this solution is not the best, because i'm expossing the
properties of my class
hope you can help me with this little problem, just remember i can't
change the method
signature.


You can make valor private and add a public setValor method.

But your basic problem is unsolvable. You can not an argument to
a method without adding an argument.

You have painted yourself into a corner with that requirement.

Arne


yes i know that it's not the best way to get something from some
method. the point is that this is a requirement of ireport in order to
populate it with a list of objects instead of using an sql data
source. so that the reazon than i can change the signature.

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