Groovy / Grails using a map as a parameter of a function

Question

I have a very simple function which I define as follows:

 def mySimpleFunction(Map myMap) {
   // Function logic here...
  }

However, when I try to compile this, I get a warning message and build exception which says that: The [mySimpleFunction] action accepts a parameter of type [java.util.Map] which has not been marked with Validateable.

How can I mark this function as Validateable? I imported the org.codehaus.groovy.grails.validation.Validateable

and have marked my class as @Validateable .

What should I be doing differently in order to get my application to build?

Thank you in advance!

Answer 1

If it is a helper method, make it private. In Grails 2.0+ public controller methods are assumed to be actions, and arguments are assumed to be bindable. That means they need to be number types, boolean, String, etc., or a command object class.

Command object classes are automatically made validateable if they're defined in the controller class file, and if they're defined elsewhere they need to be annotated as @Validateable.

Since this is a helper method and not an action, just make it private (especially since it can't be called from another class anyway):

private mySimpleFunction(Map myMap) {
   // Function logic here...
}