This API is in the
google.appengine.ext.ndb.metadata
module,
typically used via
from google.appengine.ext.ndb import metadata
.
Functions
- get_entity_group_version ( key )
-
Return the version of the entity group containing key.
This version is
guaranteed to increase on every change to the entity group. The version may
increase even in the absence of user-visible changes to the entity
group. May return
None
if the entity group was never written to.On non-HR datatores, this function returns None.
Arguments
- key
- key for an entity group.
- get_namespaces ( start =None, end =None)
-
Returns a list of namespace names.
Arguments
- start
- Don't return namespace names before this in alphabetical order.
- end
- Don't return namespace names after this in alphabetical order.
Arguments
- start
- Don't return kind names before this in alphabetical order.
- end
- Don't return kind names after this in alphabetical order.