betty.cache.no_op module¶
Provide no-op caching.
- class betty.cache.no_op.NoOpCache[source]¶
-
Provide a cache that does nothing.
- get(cache_item_id: str) collections.abc.AsyncIterator[betty.cache.CacheItem[Any] | None] [source]¶
Get the cache item with the given ID.
- Parameters:
cache_item_id (
str
)- Return type:
collections.abc.AsyncIterator
[typing.Optional
[betty.cache.CacheItem
[typing.Any
]]]
- getset(cache_item_id: str, *, wait: bool = True) AsyncContextManager[tuple[betty.cache.CacheItem[Any] | None, collections.abc.Callable[[Any], collections.abc.Awaitable[None]] | None]] [source]¶
Get the cache item with the given ID, and provide a setter to add or update it within the same atomic operation.
If
wait
isFalse
and no lock can be acquired, returnNone, None
. Otherwise return: 0. A cache item if one could be found, or elseNone
. 1. An asynchronous setter that takes the cache item’s value as its only argument.- Parameters:
- Return type:
typing.AsyncContextManager
[tuple
[typing.Optional
[betty.cache.CacheItem
[typing.Any
]],collections.abc.Callable
[[typing.Any
],collections.abc.Awaitable
[None
]] |None
]]