return an outcome message or null . concode_field_sep boolean match concode_elem_sep String message concode_field_sep ConditionOutcome inverse concode_elem_sep ConditionOutcome noMatch concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep ConditionOutcome match concode_elem_sep ConditionOutcome match concode_elem_sep String toString concode_elem_sep boolean isMatch
String function ( ) { return this . message ; }