package models; import javax.persistence.Entity; import javax.persistence.Id; import play.db.ebean.Model; @Entity public class AssignableArk extends Model { @Id public String ark; public static final Model.Finder<String, AssignableArk> find = new Model.Finder<>(String.class, AssignableArk.class); public AssignableArk(String ark) { this.ark = ark; } }