I have a batch update/insert workflow. while the KEY exists, update data ,else insert.
in sdk document. they said data will update while PersistenceManager is closed. can I just getobject and put the none exists entities in a colleciton and set values for the exists entities. then execute pm.makePersistentAll(mycollection); pm.close(); will this do my job? thanks! and one more question. if update failed while pm.close(). will the datastore manager throw a exception? and how can I use transactions? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appeng...@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
