I have two entities Order and Customer. Order has a @ManyToOne relationship with Customer. However, when I declare the following JPQL query, I get an SQLSyntaxErrorException because the generated SQL is missing the ON condition.
JPQL:
SELECT o.id,
o.incrementId,
o.externalId,
o.state,
o.status,
o.couponCode,
o.totalDiscount,
o.total,
o.originChannel,
o.branchOffice,
o.createdAt,
o.updatedAt,
c.fullName
FROM Order o
JOIN FETCH Customer c;
Generated SQL:
select order0_.id as col_0_0_,
order0_.increment_id as col_1_0_,
order0_.external_id as col_2_0_,
order0_.state as col_3_0_,
order0_.status as col_4_0_,
order0_.coupon_code as col_5_0_,
order0_.total_discount as col_6_0_,
order0_.total as col_7_0_,
order0_.origin_channel as col_8_0_,
order0_.branch_office as col_9_0_,
order0_.created_at as col_10_0_,
order0_.updated_at as col_11_0_,
customer1_.full_name as col_12_0_
from orders order0_
inner join customers customer1_ on;
As you can see, it's missing the condition on. I find that strange, because these are my entities:
Order (Irrelevant properties omitted for brevity)
@Entity
@Table(name = "orders")
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "customer_id", referencedColumnName = "id", table = "orders")
private Customer customer;
public Customer getCustomer() {
return customer;
}
}
Customer (Irrelevant properties omitted for brevity)
My use case doesn't require that I have a List<Order> in the Customer entity (I tried adding it and that doesn't solve the problem anyway.
@Entity
@Table(name = "customers")
public class Customer {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
}
The relationship between these two entities is correct because it works as expected when it comes to inserting, updating and retrieving by normal means. Am I missing something here?