google.appengine.datastore.datastore_rpc.AbstractAdapter

Abstract interface between protobufs and user-level classes.

Inherits From: expected_type

google.appengine.datastore.datastore_rpc.AbstractAdapter(
    id_resolver=None
)

This class defines conversions between the protobuf classes defined in entity_pb.py on the one hand, and the corresponding user-level classes (which are defined by higher-level API libraries such as datastore.py or db.py) on the other hand.

The premise is that the code in this module is agnostic about the user-level classes used to represent keys and entities, while at the same time provinging APIs that accept or return such user-level classes.

Higher-level libraries must subclass this abstract class and pass an instance of the subclass to the Connection they want to use.

These methods may raise datastore_errors.Error for bad inputs.

Methods

entity_to_pb

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entity_to_pb(
    entity
)

Turn a user-level entity into an entity_pb2.EntityProto.

entity_to_pb_v1

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entity_to_pb_v1(
    entity
)

Turn a user-level entity into an googledatastore.Key.

get_entity_converter

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get_entity_converter()

get_query_converter

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get_query_converter()

key_to_pb

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key_to_pb(
    key
)

Turn a user-level key into an entity_pb2.Reference.

key_to_pb_v1

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key_to_pb_v1(
    key
)

Turn a user-level key into an googledatastore.Key.

new_entity_pb

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new_entity_pb()

Create a new, empty entity_pb2.EntityProto.

new_key_pb

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new_key_pb()

Create a new, empty entity_pb2.Reference.

pb_to_entity

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pb_to_entity(
    pb
)

Turn an entity_pb2.EntityProto into a user-level entity.

pb_to_index

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pb_to_index(
    pb
)

Turn an entity_pb2.CompositeIndex into a user-level Index representation.

pb_to_key

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pb_to_key(
    pb
)

Turn an entity_pb2.Reference into a user-level key.

pb_to_query_result

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pb_to_query_result(
    pb, query_options
)

Turn an entity_pb2.EntityProto into a user-level query result.

pb_v1_to_entity

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pb_v1_to_entity(
    pb, is_projection
)

Turn an googledatastore.Entity into a user-level entity.

pb_v1_to_key

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pb_v1_to_key(
    pb
)

Turn an googledatastore.Key into a user-level key.

pb_v1_to_query_result

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pb_v1_to_query_result(
    pb, query_options
)

Turn an googledatastore.Entity into a user-level query result.