When you say it doesn't work, do you mean that it does not retrieve the entity? Can you try creating a Key with the id instead of passing the ID directly?
http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/KeyFactory.html That is, try KeyFactory.createKey(myEntity.class.getName(), keyId); On Tue, Dec 15, 2009 at 11:39 AM, a.maza <[email protected]> wrote: > According to the documentation on > > http://code.google.com/appengine/docs/java/datastore/creatinggettinganddeletingdata.html#Keys > it should be possible to retrieve an entity using a different key type > than the key field in the class. > > Assuming the following entity having a key (encoded string) and a > keyId like > > @PrimaryKey > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > @Extension(vendorName="datanucleus", key="gae.encoded-pk", > value="true") > private String encodedKey; > > @Persistent > @Extension(vendorName="datanucleus", key="gae.pk-id", > value="true") > private Long keyId; > > it should be possible to retrieve the entity by both > > pm.getObjectById(myEntity.class, encodedKey); > and > pm.getObjectById(myEntity.class, keyId); > > do I understand that correctly? - (since it does not work out for my > code) > > thanks, > andr > > -- > > 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. > > > -- Ikai Lan Developer Programs Engineer, Google App Engine -- 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.
