public function _replyToFilterFieldTypeDefinitions($aFieldTypeDefinitions)
{
if (method_exists($this, 'field_types_' . $this->oProp->sClassName)) {
return call_user_func_array(array($this, 'field_types_' . $this->oProp->sClassName), array($aFieldTypeDefinitions));
}
return $aFieldTypeDefinitions;
}