OK(0), WARN(1), ERROR(2);
Message explaining this validation result
If an error it is an an error message.
TODO: decide if this is a key that then gets resolved into a
real localized message using the message service or the final
localized message itself
Identifies the element (field) that is the focus of the
validation. Uses xpath (dot) notation to navigate to the
field, for example: officialIdentifier.code
TODO: find out how repeating substructures are handled in this
notation, with [n] occurrence brackets?
Indicates the severity of the validation result.