Writing CRUDRepository's findBy() method on a field annotated by JoinColumn

I'm kind of new to Spring JPA, so I apologize in advance if my question sounds basic. I have 2 entity objects: OrderInfo, and PersonInfo. The classes are as below:

@Entity
@Table(name="order_info")
@NamedQuery(name="OrderInfo.findAll", query="SELECT o FROM OrderInfo o")
public class OrderInfo implements Serializable {

    @Column(name="order_number")
    private String orderNumber;

    //bi-directional many-to-one association to PersonInfo
    @ManyToOne
    @JoinColumn(name="person_id")
    private PersonInfo personInfo;

    public String getOrderNumber() {
        return this.orderNumber;
    }

    public void setOrderNumber(String orderNumber) {
        this.orderNumber = orderNumber;
    }

    public PersonInfo getPersonInfo() {
        return this.personInfo;
    }

    public void setPersonInfo(PersonInfo personInfo) {
        this.personInfo = personInfo;
    }


}

And the Person entity:

@Entity
@Table(name="person_info")
@NamedQuery(name="PersonInfo.findAll", query="SELECT p FROM PersonInfo p")
public class PersonInfo implements Serializable {

    //bi-directional many-to-one association to OrderInfo
    @OneToMany(mappedBy="personInfo")
    private List<OrderInfo> orderInfos;

    public List<OrderInfo> getOrderInfos() {
        return this.orderInfos;
    }

    public void setOrderInfos(List<OrderInfo> orderInfos) {
        this.orderInfos = orderInfos;
    }

    public OrderInfo addOrderInfo(OrderInfo orderInfo) {
        getOrderInfos().add(orderInfo);
        orderInfo.setPersonInfo(this);

        return orderInfo;
    }

    public OrderInfo removeOrderInfo(OrderInfo orderInfo) {
        getOrderInfos().remove(orderInfo);
        orderInfo.setPersonInfo(null);

        return orderInfo;
    }

}

These two classes were auto-generated in Eclipse using JPA's create entityfromtable option.

Now, I'm trying to write a CRUDRepository to get OrderInfo given an orderNumber, and personId. If I had a personId field in the OrderInfo object, I could have written something like

@Repository
public interface OrderRepository extends CrudRepository<OrderInfo, Integer>{
    public OrderInfo findByPersonIdAndOrderNumber(@Param("personId") Long personId, @Param("orderNumber") String orderNumber);

}

However, now the OrderInfo entity does not have a personId. Instead, it has a reference to a Person (Again, I did not write the entity classes. They were auto-generated by Eclipse). How should I write the findBy() method now?

Thanks in advance.