I have following model class
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
public class Person {
@Max(value = 10, message = "First name should be smaller than 10 characters.")
private String fname;
@Min(value = 5, message = "Last name should have atleast 5 characters.")
private String lname;
private String status;
public Person(String fname, String lname, String status) {
super();
this.fname = fname;
this.lname = lname;
this.status = status;
}
Following is Test class where I am validating the Person model class.
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Set;
import javax.validation.Configuration;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import the.bhushan.models.Person;
public class Test {
public static void main(String[] args) throws FileNotFoundException {
Test test = new Test();
//test.byXML();
test.byAnnotation();
}
private void byAnnotation() {
ValidatorFactory validatorFactory = Validation
.buildDefaultValidatorFactory();
Validator validator = validatorFactory.getValidator();
Person emp1 = new Person("Bhushan", "Patil", "A");
Set<ConstraintViolation<Person>> validationErrors = validator
.validate(emp1);
if (!validationErrors.isEmpty()) {
for (ConstraintViolation<Person> error : validationErrors) {
System.out.println(error.getMessageTemplate() + "::"
+ error.getPropertyPath() + "::" + error.getMessage());
}
}
}}
Even though, fname field have value only 7 character long, it is showing following validation message.
Last name should have atleast 5 characters.::lname::Last name should have atleast 5 characters. First name should be smaller than 10 characters.::fname::First name should be smaller than 10 characters.
This is not the correct annotation. @Min
and @Max
are for BigDecimal
, BigInteger
, byte
, short
, int
, long
and their respective wrappers.
Please use @Size
instead. Extract of javadoc :
Supported types are:
- String (string length is evaludated)
- Collection(collection size is evaluated)
- Map(map size is evaluated)
- Array (array length is evaluated)