Hibernate Criteria に苦労しています。私の目的は、 Hibernate Criteria を使用して次のリクエストを作成することです:
select
count(*) as y0_
from
PInterface this_
inner join
Product product2_
on this_.product_id=product2_.id
where
this_.product_interface_type_id=?
これが私のコードです:
@Entity @Table(name = "PInterface")
public class PInterface {
@Id
@GeneratedValue
@Column(name = "id", nullable = false, insertable = false, updatable = false)
private int id;
@Column(name = "product_id")
private int productId;
@Column(name = "product_interface_type_id")
private int type;
@ManyToOne(optional=false)
@JoinColumn(name = "product_id", referencedColumnName = "id", insertable=false, updatable=false)
private Product product;
}
@Entity @Table(name = "Product")
public class Product {
@Id
@GeneratedValue
@Column(name = "id", nullable = false, insertable = false, updatable = false)
private int id;
private String name;
}
//Criteria is :
Object criteria = sessionFactory.getCurrentSession()
.createCriteria(PInterface.class)
.add(Restrictions.eq("type", 1))
.setProjection(Projections.rowCount())
.uniqueResult()
;
しかし、結果は...
select
count(*) as y0_
from
PInterface this_
where
this_.product_interface_type_id=?
インナーはどこに参加しますか?
ご協力ありがとう御座います!