Dear all,
I write an entity like this:
@Entity
public class Employee
{
@Id
private long id;
private String name;
@OneToMany
private Mao<String,EmpDetail> detail=new TreeMap<String,EmpDetail>();
//set ,get functions pass
@Entity
public static class EmpDetail
{
@Id
protected long id;
protected String address;
//set ,get functions pass
}
}
I delete an EmpDetail like this:
em.remove(em.getReference(EmpDetail.class,4)); // em is the entity manager
I delete the record successful but the last one.
Exception is here: javax.persistence.EntityNotFoundException:deleted entity passed to persiste:(...Employee$EmpDetail#<null>)
some one knows what is going on? thank you!