Regular expression validator. The regular expression applies to the full string only if constructed as such. For
example, /\d*/ (0 or more digits) matches every string, /\d+/
(1 or more digits) matches strings with at least one digit, /^\d*$/ matches strings that
are all digits or empty, and /^\d+$/ matches strings that are all digits and not empty.
Clients of this class are recommended to override the createErrorMessage method create a more suitable error
message for their use case.
Create an error message for a string. The generic error message is sufficient for many use cases but a more
domain-specific error message, possibly including the pattern itself, is often required.
Regular expression validator. The regular expression applies to the full string only if constructed as such. For example,
/\d*/(0 or more digits) matches every string,/\d+/(1 or more digits) matches strings with at least one digit,/^\d*$/matches strings that are all digits or empty, and/^\d+$/matches strings that are all digits and not empty.Clients of this class are recommended to override the createErrorMessage method create a more suitable error message for their use case.