Re: Static method

Joshua Cranmer <Pidgeot18@verizon.invalid>
Sat, 03 May 2008 20:12:08 GMT
<sG3Tj.562$Jb2.13@trndny03> wrote:

I have a static method which has the following signature.

public static List createBeanCollection(){

I can't chage this, now this is the problem. how can i pass it

May I ask why you cannot change the parameters? Is it to conform to some
interface or something similar?

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;
however this solution is not the best, because i'm expossing the
properties of my class

I'm guessing that you would like something like this:

public class ProblemClass {
    private static boolean validConfiguration = false;

    private static int value;

    public static void configureCollection(int value) {
        ProblemClass.value = value;
        validConfiguration = true;

    public static List createBeanCollection() {
        if (!validConfiguration)
            throw new IllegalStateException("Trying to create a bean"+
                " collection without a proper configuration!");
        validConfiguration = false;
        return miDao.onbtenObjetosPorId(value);

1. It would probably be better to use generics, unless this is pre-Java
5, in which case it would be better to upgrade to Java 6 and then use
2. I don't know Spanish, so I'm only guessing what your variable names
are talking about.
3. My code doesn't account for more complex fault-handling capabilities,
but that's alright for an example.

Beware of bugs in the above code; I have only proved it correct, not
tried it. -- Donald E. Knuth

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