diff options
| -rw-r--r-- | synapse/storage/_base.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 99c0948754..0872a438f1 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -132,6 +132,9 @@ class Cache(object): class CacheDescriptor(object): """ A method decorator that applies a memoizing cache around the function. + This caches deferreds, rather than the results themselves. Deferreds that + fail are removed from the cache. + The function is presumed to take zero or more arguments, which are used in a tuple as the key for the cache. Hits are served directly from the cache; misses use the function body to generate the value. |