I have 2 entities:
@Entity
@Table(name = "HOUSE")
public class House {
//other fields
@ManyToOne
@JoinColumn(name = "OWNER_1", referencedColumnName = "OWNER_ID")
private Owner owner1;
@ManyToOne
@JoinColumn(name = "OWNER_2", referencedColumnName = "OWNER_ID")
private Owner owner2;
}
@Entity
@Table(name = "OWNER")
public class Owner {
@Id
@Column(name = "OWNER_ID")
private String id;
}
I have the SQL query like this to join 2 tables:
select a.*, b.* from HOUSE a INNER JOIN OWNER b on a.OWNER_1 = b.OWNER_ID or a.OWNER_2 = b.OWNER_ID
But I don't know how to write it in JPA query. Anyone can help?
JPA query would be quite similar:
select a, b
from House a, Owner b
where a.owner1.id= b.id or a.owner2.id = b.id
Just keep in mind that the result of query would be a List<Object[2]>
, which you have to parse yourself.
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