I have 2 entity classes:
package testing;
import javax.persistence.*;
import java.util.List;
@Entity
@Table(name = "A")
public class A
{
@Id
@Column(name = "Id")
private String mId;
@OneToMany(mappedBy = "mA")
private List<B> mBList;
//Getter and setters to the members...
}
@Entity
@Table(name = "B")
public class B
{
@Id
@Column(name = "Id")
private String mId;
@ManyToOne
@JoinColumn(name = "AId")
private A mA;
//Getter and setters to the members...
}
The id column is of type uniqueidentifier and the database is MS SQL Server 2000.
The following code prints out '0':
A a = mEntityManager.find(A.class, "cfaae25a-761b-4430-ba0d-566ddb9bd535");
List<B> bList = a.getBList();
System.out.println(bList.size());
If I have an integer as the primary key this code work without change (except for the type) and return 4 B's in the collection. But change the type to uniqueidentifier it no longer working.
I have tried the code on glassfish and there it works with uniqueidentifier as PK type.
