I am using JSR-303 in Spring to validate a password field. I would like to put all my validation logic in one class and display the message for each error accordingly. Is this possible? Is it a better practice to create a separate class for each validation check (i.e. PasswordLengthValidator, PasswordRegexValidator)?
Currently, I am able to display only 1 error message based on the Password interface.
Here is my interface for the @Password annotation:
@Documented @Constraint(validatedBy = PasswordValidator.class) @Target( { ElementType.METHOD, ElementType.FIELD }) @Retention(RetentionPolicy.RUNTIME) public @interface Password { String message() default "{Password}"; Class<?>[] groups() default {}; Class<? extends Payload>[] payload() default {}; } Here is my validator class:
public class PasswordValidator implements ConstraintValidator<Password, String> { public void initialize(Password arg0) { // TODO Auto-generated method stub } public boolean isValid(String field, ConstraintValidatorContext ctx) { // TODO validation validation validation if(StringUtils.isEmpty(field)) { // Message: password can not be empty return false; } // match some password regex if(field.matches("^(?=.*[A-Z].*[A-Z])(?=.*[!@#$&*])(?=.*[0-9].*[0-9])(?=.*[a-z].*[a-z].*[a-z]).{8}$")) { // Message: password should be bla bla return false; } return true; } } 
