Store Module

class great_expectations.data_context.store.store.Store(store_backend=None, runtime_environment=None)

Bases: object

A store is responsible for reading and writing Great Expectations objects to appropriate backends. It provides a generic API that the DataContext can use independently of any particular ORM and backend.

An implementation of a store will generally need to define the following:

• serialize

• deserialize

• _key_class (class of expected key type)

All keys must have a to_tuple() method.

serialize(key, value)

key_to_tuple(key)

tuple_to_key(tuple_)

deserialize(key, value)

get(key)

set(key, value)

list_keys()

has_key(key)

class great_expectations.data_context.store.store_backend.StoreBackend(fixed_length_key=False)

Bases: object

property fixed_length_key

get(key)

set(key, value, **kwargs)

has_key(key)

get_url_for_key(key, protocol=None)

abstract list_keys(prefix=())

class great_expectations.data_context.store.store_backend.InMemoryStoreBackend(runtime_environment=None, fixed_length_key=False)

Bases: great_expectations.data_context.store.store_backend.StoreBackend

Uses an in-memory dictionary as a store backend.

list_keys(prefix=())

last updated: Aug 13, 2020