Java validation add constraint for only set of string values

Question

Using java validation is it possible to add constrains for a string property like it should have only some set of values. (for ex : AA,BB,CC,DD). I know I can use something like below, but it does not stop some junk values apart from my expected values.

The below code, allow me junk/unexpected values

@Size(min=2, max=2,message="")
@pattern("regex patter to allow string only)
private String prop;

For a set of values with defined possible values, use an enum — Bohemian
– Bohemian ♦, Commented Dec 11, 2018 at 6:05
Whose implementation of the Bean Validation API are you using? Hibernate? — rorschach
– rorschach, Commented Dec 11, 2018 at 6:07
Seems like a duplicate of stackoverflow.com/questions/17481029/… — vivek g
– vivek g, Commented Dec 11, 2018 at 6:11

Paco Abato · Accepted Answer · 2018-12-11 06:11:02Z

3

@Pattern(regexp = "word1|word2|word3")
String name;

If you need more elaborated regexp use the one you need in the usual way.

answered Dec 11, 2018 at 6:11

Paco Abato

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