Objectify - opposite of IN filter operation

问题

Is there a way to exclude in the query when a list is filtered? Something like: allow to fetch when the key is not inside keys list.

List<Key<User>> userKeys = getUserKeys(); ofy().load().type(User.class).filter("__key__ ?????", userKeys).list();

回答1:

This operation is not exposed by the low level api. File a feature request in the GAE issue tracker:

https://code.google.com/p/googleappengine/issues/list

来源：https://stackoverflow.com/questions/31933012/objectify-opposite-of-in-filter-operation