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.
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