Rules

Alphanumeric

Allow only letters and digits.

Use alphanum() when a string should contain only alphanumeric characters.

Teki schema = Teki.fromRules(
    string("username").required().alphanum().min(3).max(24)
);

Available on

import dev.ditsche.teki.annotation.AlphaNumeric;

public class SignupRequest {
    @AlphaNumeric
    private String username;
}

Pattern

Validate strings with a regular expression.

IP Address

Validate IP address strings.