Interface Validator<T>

Type Parameters:

T - the type of object to validate

All Known Implementing Classes:

ChangePasswordDtoValidator, CreateHolidayDtoValidator, CreateUserValidator, EmailDtoValidator, NewEmailDtoValidator, NewPasswordDtoValidator

public interface Validator<T>

Generic Validator interface for validating objects of type T. Provides static helper methods for common validation tasks such as string field validation and password validation.

Method Summary

Modifier and Type	Method	Description
void	validate(T t)	Validates the given object.
static void	validatePassword(String password, String fieldName, List<String> regexs, Map<String,String> errors, int minLength)	Validates a password string against multiple regex patterns and minimum length.
static void	validateStringField(String text, String regex, String message, String fieldName, Map<String,String> errors)	Validates a string field against a given regex pattern.

Method Details

validate

void validate(T t)

Validates the given object. Implementations should throw an exception or handle errors as appropriate.

Parameters:

t - the object to validate

validateStringField

static void validateStringField(String text,
 String regex,
 String message,
 String fieldName,
 Map<String,String> errors)

Validates a string field against a given regex pattern. Checks if the string is null or empty and if it matches the regex pattern. Adds error messages to the provided errors map.

Parameters:

text - the string value to validate

regex - the regex pattern the string must match

message - the error message if the regex does not match

fieldName - the name of the field being validated (used as key in errors map)

errors - map to collect validation errors

validatePassword

static void validatePassword(String password,
 String fieldName,
 List<String> regexs,
 Map<String,String> errors,
 int minLength)

Validates a password string against multiple regex patterns and minimum length. Checks if the password is null or empty, verifies length, and validates presence of required character groups. Adds error messages to the provided errors map.

Parameters:

password - the password string to validate

fieldName - the name of the password field (used as key in errors map)

regexs - list of regex patterns that the password must satisfy (e.g., lowercase, uppercase, digit, special char)

errors - map to collect validation errors

minLength - minimum length required for the password