Package conary :: Package lib :: Module util :: Class ObjectCache

Class ObjectCache

object --+    
         |    
      dict --+
             |
            ObjectCache

Implements a cache of arbitrary (hashable) objects where an object can be looked up and have its cached value retrieved. This allows a single copy of immutable objects to be kept in memory.

Instance Methods

[hide private]

__init__(self, *args)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

__setitem__(self, key, value)
x[i]=y

source code

__contains__(self, key)
Returns: True if D has a key k, else False

source code

has_key(self, key)
Returns: True if D has a key k, else False

source code

__delitem__(self, key)
del x[y]

source code

__getitem__(self, key)
x[y]

source code

setdefault(self, key, value)
Returns: D.get(k,d), also set D[k]=d if k not in D

source code

Inherited from dict: __cmp__, __eq__, __ge__, __getattribute__, __gt__, __hash__, __iter__, __le__, __len__, __lt__, __ne__, __new__, __repr__, clear, copy, fromkeys, get, items, iteritems, iterkeys, itervalues, keys, pop, popitem, update, values

Inherited from object: __delattr__, __reduce__, __reduce_ex__, __setattr__, __str__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, args)
(Constructor)*

source code

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

Returns:

new empty dictionary

Overrides: dict.__init__

(inherited documentation)

setitem(self, key, value)
(Index assignment operator)

source code

x[i]=y

Overrides: dict.__setitem__: (inherited documentation)

contains(self, key)
(In operator)

source code

Returns:

True if D has a key k, else False

Overrides: dict.__contains__

(inherited documentation)

has_key(self, key)

source code

Returns:

True if D has a key k, else False

Overrides: dict.has_key

(inherited documentation)

delitem(self, key)
(Index deletion operator)

source code

del x[y]

Overrides: dict.__delitem__: (inherited documentation)

getitem(self, key)
(Indexing operator)

source code

x[y]

Overrides: dict.__getitem__: (inherited documentation)

setdefault(self, key, value)

source code

Returns:

D.get(k,d), also set D[k]=d if k not in D

Overrides: dict.setdefault

(inherited documentation)

Class ObjectCache

__init__(self, *args) (Constructor)

__setitem__(self, key, value) (Index assignment operator)

__contains__(self, key) (In operator)

has_key(self, key)

__delitem__(self, key) (Index deletion operator)

__getitem__(self, key) (Indexing operator)

setdefault(self, key, value)

init(self, args)
(Constructor)*

setitem(self, key, value)
(Index assignment operator)

contains(self, key)
(In operator)

delitem(self, key)
(Index deletion operator)

getitem(self, key)
(Indexing operator)