Validate elements of a String array with Java Bean Validation

Question

I have a simple class that has one of its properties as a String array. As per this document, using @Valid on an array, collection etc. will recursively validate each elemen

Answer 1

First... i'm not sure... but @Pattern only accepts regex, right? Correct sintax is not:

@Pattern("^[_ A-Za-z0-9]+$")   // delete 'regexp='

If this is not the problem you can create a wrapper class with validators in the attributes:

public class Role {

    @Pattern(regexp="^[_ A-Za-z0-9]+$")
    String adminRole;

    //getters and setters
}

Then just need to mark the field @Valid in your existing object:

@Valid
Role[] defaultAppAdminRoles;