code: public ExecutableValidationType<ValidationConfigType<T>> getOrCreateExecutableValidation()
     {
        Node node = childNode.getOrCreate("executable-validation");
        ExecutableValidationType<ValidationConfigType<T>> executableValidation = new ExecutableValidationTypeImpl<ValidationConfigType<T>>(this, "executable-validation", childNode, node);
        return executableValidation;
     }
docs: If not already created, a new <code>executable-validation</code> element with the given value will be created.
  Otherwise, the existing <code>executable-validation</code> element will be returned.
  @return  a new or existing instance of <code>ExecutableValidationType<ValidationConfigType<T>></code>