How to check for a length of 5 or 9 with hibernate validator?

Question

I can validate the length of a String with an annotation like:

@Length(max = 255)

But what if I want to verifiy that the length is either 5 or 9? Can this be done with an annotation?

Answer 1

Try @Pattern(regex=".{5}|.{9}") (change the dot to another character class if you don't want to match everything.