Re: Static method

From:
"ojvm24@gmail.com" <ojvm24@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sat, 3 May 2008 19:16:40 -0700 (PDT)
Message-ID:
<bf829926-b86e-40d1-a046-4f4ada5f6b0a@t12g2000prg.googlegroups.com>

Probably a better way to handle this is just to use a setter to set the
value of valor.

public class BeanWrapper {

   private int valor;

   public static void setValor( int v )
   {
     valor = v;
   }

   public static List createBeanCollection()
   {
     return miDao.onbtenObjectosPorId( valor );
   }

}


but with this code you will get an "non-static variable valor cannot
be referenced from a static context" so this wont work.

Now this is a tad dangerous, you'll get issues with concurrency and
what-not. But it might suit your needs.


yes in fact i was thinking in sincronized code in the method that
calls this class.

Have you considered a non-static method? It seems to me that would solve
a lot more problems. You could also inject a non-static object into the
wrapper class.


the problem is that this is the signature a must use. i cant rewrite
it to "public List mimethod()" this is an ibatis requirementin order
to populate a report whit objects instead of using an sql data source.

public class BeanWrapper {

   private Beans b;

   public static void setValor( Beans v )
   {
     b = v;
   }

   public static List createBeanCollection()
   {
     return b.onbtenObjectosPorId();
   }

}


yes it souns fine. but the problem is the same i mentioned above.

where a Beans object has the "valor" injected into it, ie.,

   setValor( new Beans( 1 ) );

Now you also have a fully constructed object that you can synchronize
on, for example. And it's private, so no one else can call it but your
createBeanCollection() method.


thank you for your time.

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