public class Person {
   private Long personId;
   private Collection<String> names;

   public Long setPersonId(Long personId){
    this.personId = personId;
   }

   public Long getPersonId(Long personId){
      return this.personId;
   }

   public Collection<String> getNames() {
      return names;
   }

   public void setNames(Collection<String> names) {
      this.names = names;
   }
}