Javax Validation Size annotation does not behave correctly

Question

So I have a simple class like this:

import javax.validation.constraints.Size;

public class Temail {

    @Size(min = 0, max = 10)
    private String json;

    public Temail(String json) {
        Validate.notEmpty(json, "json can't be empty");
        setJson(json);
    }

    public void setJson(String json) {
        this.json = json;
    }

    public String getJson() {
        return json;
    }

}

What I am expecting is if I run new Temail("1234123123123"); I expect it to throw an exception but it does not. I looked at the conventions and it does fit into the right convention. So what's the problem here?

Could you please include your import statements. There are lots of different validators and you might be mixing them. — hooknc, Oct 14 '14 at 03:12
Are you using this [@size](http://docs.oracle.com/javaee/6/api/javax/validation/constraints/Size.html)? — dramzy, Oct 14 '14 at 03:16
maybe Duplicate: http://stackoverflow.com/questions/8756768/annotations-from-javax-validation-constraints-not-working — Tal.Bary, Oct 14 '14 at 07:03

score 0 · Answer 1 · edited May 28 '15 at 20:42

0

It seems that it is not supposed to throw an exception when a constraint is invalid. Instead, you use a validator instance to validate the fields based on the constraints you define. So, something like this:

Validator validator = Validation.buildDefaultValidatorFactory().getValidator();

Temail t = new Temail("123456789012345");

Set<ConstraintViolation<Temail>> constraintViolations = validator.validateProperty(t, "json");

See more examples and explanations here.

edited May 28 '15 at 20:42

Allen

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answered Oct 14 '14 at 20:49

dramzy

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That's fine I guess, but what if we had 10 fields? Are there any automatic way to validate that? – Sarp Kaya Oct 14 '14 at 23:47
Validate the object instead: `validator.validate(t)` – Allen May 28 '15 at 20:32

Javax Validation Size annotation does not behave correctly

1 Answers1