Package park :: Package core :: Module datastore :: Class FileCache

Class FileCache

Create a data cache in a particular directory on the filesystem.

Each cached item consists of two parts, a .key file containing the item description, and a .dat file containing the item data.

The store method returns a complete path to the .dat file.

TODO: monitor access times so that we can identify old files for purging

Instance Methods

__init__(self, location=None)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

hash(self, key)
Returns cache file and key file names for the given key.

source code

remove(self, key)
Remove file associated with key.

source code

store(self, key)
Find the data file corresponding to the particular key.

source code

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Instance Variables
	location Directory name containing the cache

Properties
Inherited from `object`: `__class__`

Method Details

init(self, location=None)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

store(self, key)

source code

Find the data file corresponding to the particular key.

Raises RuntimeError if there is a key collision.

Class FileCache

__init__(self, location=None) (Constructor)

store(self, key)

init(self, location=None)
(Constructor)