for instance, you can just use a Key and reference
the Person in the Telephone.
>>>>>you are right. and i just do it as you say.
public class Telephone{
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName="datanucleus", key="gae.encoded-pk",
value="true")
private String telephone_id;
@Persistent
private String person_id; //this field point to Person
}
my question is "
if person have telephone( telephone1,telephone2,telephone3) and user
update person's telephone is telephone2,telephone3,telephone4, how
to implements this?
"
but in a same transactions , I need update 2 telephone
object .----------telephone1.person_id=null
telephone4.person_id=person_id.
and the 2 telephone object is not in same entity group.
the question seem to equal " how to update multi object (same
class) in same transaction?"
Thank you for your help
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