Index of the cache module
-
m
sqlobject.cache
...
- This implements the instance caching in SQLObject. Caching is
relatively aggressive. All objects are retained so long as they are
in memory, by keeping weak references to objects. We also keep other
objects in a cache that doesn't allow them to be garbage collected
(unless caching is turned off).
-
C
CacheFactory
...
- CacheFactory caches object creation. Each object should be
referenced by a single hashable ID (note tuples of hashable
values are also hashable).
-
f
__init__
...
- Every cullFrequency times that an item is retrieved from
this cache, the cull method is called.
-
f
allIDs
...
- Returns the IDs of all objects in the cache.
-
f
clear
...
- Removes everything from the cache. Warning! This can cause
duplicate objects in memory.
-
f
created
...
- Inserts and object into the cache. Should be used when no one
else knows about the object yet, so there cannot be any object
already in the cache. After a database INSERT is an example
of this situation.
-
f
cull
...
- Runs through the cache and expires objects. E.g., if
cullFraction is 3, then every third object is moved to
the 'expired' (aka weakref) cache.
-
f
expire
...
- Expires a single object. Typically called after a delete.
Doesn't even keep a weakref. (@@: bad name?)
-
f
expireAll
...
- Expires all objects, moving them all into the expired/weakref
cache.
-
f
finishPut
...
- Releases the lock that is retained when .get() is called and
returns None.
-
f
get
...
- This method can cause deadlocks! tryGet is safer
-
f
getAll
...
- Return all the objects in the cache.
-
f
put
...
- Puts an object into the cache. Should only be called after
.get(), so that duplicate objects don't end up in the cache.
-
f
tryGet
...
- This returns None, or the object in cache.
-
C
CacheSet
...
- A CacheSet is used to collect and maintain a series of caches. In
SQLObject, there is one CacheSet per connection, and one Cache
in the CacheSet for each class, since IDs are not unique across
classes. It contains methods similar to Cache, but that take
a cls argument.