Question Dynamic-invoke A Static Function

[davidvilla]

I am using 11.1 version of Progress and writing a oo code.
I have a class with few methods defined as static and is querying a table.
When I tried to invoke the methods dynamically using DYNAMIC-INVOKE, i got the error "Static methods, property accessors, and constructors may only reference static members of the class. 'customer' is an instance member. (14422)".
So I removed the static keyword from the method definition and I got another error "A valid class instance or static class name is required for dynamically invoking a method or accessing a property. (15285)"
It looks like, to invoke a method dynamically, it has to be a static method and a static method cannot access a table.

Can you help me get this right?

Sample code:

/* TestDynamicMethod.p */
using TestDynamic.*.

define variable objTD as TestDynamic no-undo.

define variable mychar as character no-undo.

objTD = new TestDynamic().

mychar = "two".

dynamic-invoke ("TestDynamic", "method" + mychar, "1", 2 )

/* TestDynamic.cls */

using Progress.Lang.*.

class TestDynamic :

    define private static variable hquery as handle no-undo.

    constructor TestDynamic():
        super().
        message "Constructor" view-as alert-box.
    end constructor.
   
    destructor TestDynamic():
        message "Destructor " view-as alert-box.
    end destructor.
   
    method public static void methodone(input ipc as char):
        message "Method One" view-as alert-box.
        find first customer no-lock.
    end.
   
    method public static void methodtwo(input ipc as char, input ipi as int):
        message "Method TWO " view-as alert-box.
    end.

end class.

 

[TheMadDBA]

Static classes cannot directly access database tables. If you want static classes you have to use dynamic queries and buffers.

You also don't use the NEW function for static classes.

 

[davidvilla]

i used buffer and it worked...
thanks a lot