Trigger does not update the results?!?!? Am i wrong?

Question

Hi all. I have small problem with oracle forms 10g and VBean that is inside a oracle form.
My bean communicate with the form with set and get property methods like this:
protected static final ID a = ID.registerProperty("a");
public Object getProperty(ID property) {
          if (property == a) {
String string= returnRandomString();
               return string;
          } else
               return super.getProperty(property);
and i have a button in the form, that on the trigger when-button-pressed is executing the following pl/sql
randomString:= Get_Custom_Property('PERSONAL_DATA_FORM_BLOCK.SIGN_FORM_BEAN_AREA', 1, 'getSignedDataAsBase64');
When I press the button it returns me some string, but when i press it for second time it returns me the same string as the first time(the method returnRandomString() always returns different strings). So The info is not refreshed. Am i wrong somewhere or this is the correct behavior. As it is trigger it must be triggered every time i press the button, right?
Finally is there any way to call a method placed in my class (that is extending VBean) from pl/sql trigger and how?

Answer 1

the property should be read every time.
protected static final ID a = ID.registerProperty("*a*");
randomString:= Get_Custom_Property('PERSONAL_DATA_FORM_BLOCK.SIGN_FORM_BEAN_AREA', 1, '*getSignedDataAsBase64*');i guess its just because you posted examplecode that the property-names do not match ?!?
To check if your method is called in the bean you could try a System.out.println(randomString); in the java bean and look into the concole of Jinitiator/Sun Plugin?
just to make sure: Sure that returnrandomstring() returns something different for each call?