LastNameValidator class

LastNameValidator extends TranslatedValidator to validate if a string represents a valid last name.

This validator checks if the last name matches a specified regex pattern and is not in a blacklist, and optionally checks if it is in a whitelist.

Parameters:

  • regex The regular expression used to validate the last name format. Defaults to a standard last name regex.
  • lastNameWhitelist A list of valid last names that are explicitly allowed.
  • lastNameBlacklist A list of invalid last names that are explicitly disallowed.
  • errorText The error message returned if the validation fails.
  • checkNullOrEmpty Whether to check if the value is null or empty.
Inheritance

Constructors

LastNameValidator.new({RegExp? regex, List<String> lastNameWhitelist = const <String>[], List<String> lastNameBlacklist = const <String>[], String? errorText, bool checkNullOrEmpty = true})
Constructor for the last name validator.

Properties

checkNullOrEmpty → bool
Whether to check if the value is null or empty.
finalinherited
errorText → String
The error message returned if the value is invalid.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
lastNameBlacklist → List<String>
A list of invalid last names that are explicitly disallowed.
final
lastNameWhitelist → List<String>
A list of valid last names that are explicitly allowed.
final
regex → RegExp
The regular expression used to validate the last name format.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
translatedErrorText → String
The translated error message returned if the value is invalid.
no setteroverride

Methods

isNullOrEmpty(String? valueCandidate) → bool
Checks if the value is null or empty. Returns true if the value is null or empty, otherwise false. The value is considered empty if it is a String, Iterable, or Map and it is empty or contains only whitespace characters. If the value is not a String, Iterable, or Map, it is considered empty if it is null.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited
validate(String? valueCandidate) → String?
Validates the value and checks if it is null or empty.
inherited
validateValue(String valueCandidate) → String?
Validates the value. Returns null if the value is valid, otherwise an error message. Call validate() instead of this method when using the validator.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited