Can you copy paste ur code here.may be then we can suggest something. Sent from my BlackBerry® wireless device
-----Original Message----- From: Amit Pandey <[email protected]> Sender: [email protected] Date: Tue, 14 Dec 2010 19:27:27 To: <[email protected]> Reply-To: [email protected] Subject: Re: [appengine-java] Parent-Child relation if parent primary key isgenerated by Datastore Thanks for response Ravi. Actually It's owned relationship. I followed your steps and then I tried to delete the parent object in transaction, I got following exception- "java.lang.IllegalArgumentException: can't operate on multiple entity groups in a single transaction." Ideally it should delete both parent and child table. Thanks. On Tue, Dec 14, 2010 at 7:12 PM, <[email protected]> wrote: > If its owned relation u don't need to generate child key.it will be > generated automatically. > And if it is unowned then u can generate the child key in same way as u > generated for parent. > > Sent from my BlackBerry® wireless device > ------------------------------ > *From: * Amit Pandey <[email protected]> > *Sender: * [email protected] > *Date: *Tue, 14 Dec 2010 19:09:07 +0530 > *To: *<[email protected]> > *ReplyTo: * [email protected] > *Subject: *Re: [appengine-java] Parent-Child relation if parent primary > key is generated by Datastore > > Is there any one who can address my problem. > > On Tue, Dec 14, 2010 at 12:59 PM, Amit Pandey <[email protected]> wrote: > >> >> Hi, >> >> Is there any way to create parent child relation between two table if >> parent table's primary key is Long and generated by Datastore. >> >> basically, I don't know how to create child class key if parent class key >> is generated by datastore. >> >> Thanks, >> Amit >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine for Java" group. >> To post to this group, send email to >> [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<google-appengine-java%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/google-appengine-java?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
