WebKit.SessionStore | index /usr/local/share/webware/WebKit/SessionStore.py

Modules

``

WebUtils | os | sys | time

Classes

``

WebKit.Object.Object(__builtin__.object, MiscUtils.NamedValueAccess.NamedValueAccess)
  SessionStore

class SessionStore(WebKit.Object.Object)

``

`A general session store.
SessionStores are dictionary-like objects used by Application to
store session state. This class is abstract and it's up to the
concrete subclass to implement several key methods that determine
how sessions are stored (such as in memory, on disk or in a
database).
Subclasses often encode sessions for storage somewhere. In light
of that, this class also defines methods encoder(), decoder() and
setEncoderDecoder(). The encoder and decoder default to the load()
and dump() functions of the cPickle or pickle module. However,
using the setEncoderDecoder() method, you can use the functions
from marshal (if appropriate) or your own encoding scheme.
Subclasses should use encoder() and decoder() (and not
pickle.load() and pickle.dump()).
Subclasses may rely on the attribute self._app to point to the
application.
Subclasses should be named SessionFooStore since Application
expects "Foo" to appear for the "SessionStore" setting and
automatically prepends Session and appends Store. Currently, you
will also need to add another import statement in Application.py.
Search for SessionStore and you'll find the place.
TO DO
* Should there be a check-in/check-out strategy for sessions to
prevent concurrent requests on the same session? If so, that can
probably be done at this level (as opposed to pushing the burden
on various subclasses).
`

Method resolution order:
  SessionStore
  WebKit.Object.Object
  __builtin__.object
  MiscUtils.NamedValueAccess.NamedValueAccess

Methods defined here:

__delitem__(self, key)
  `Delete an item.
  Subclasses are responsible for expiring the session as well.
  Something along the lines of:
  sess = self[key]
  if not sess.isExpired():
  sess.expiring()`

__getitem__(self, key)

__init__(self, app)
  `Subclasses must invoke super.`

__len__(self)

__repr__(self)

__setitem__(self, key, item)

application(self)

cleanStaleSessions(self, task=None)
  `Clean stale sessions.
  Called by the Application to tell this store to clean out all
  sessions that have exceeded their lifetime.`

clear(self)

decoder(self)

encoder(self)

get(self, key, default=None)

has_key(self, key)

items(self)

keys(self)

setEncoderDecoder(self, encoder, decoder)

setdefault(self, key, default)

storeAllSessions(self)

storeSession(self, session)

values(self)

Methods inherited from WebKit.Object.Object:

deprecated(self, method)
  `Output a deprecation warning.
  The implementation of WebKit sometimes invokes this method which prints
  a warning that the method you are using has been deprecated.
  This method expects that deprecated methods say so at the beginning of
  their doc string and terminate that msg with @. For example:
  DEPRECATED: Class.foo() on 01/24/01 in ver 0.5. Use Class.bar() instead. @
  Putting this information in the doc string is important for accuracy
  in the generated docs.
  Example call:
  deprecated(self.foo)`

Data and other attributes inherited from WebKit.Object.Object:

__dict__ = <dictproxy object>
  `dictionary for instance variables (if defined)`

__weakref__ = <attribute '__weakref__' of 'Object' objects>
  `list of weak references to the object (if defined)`

Methods inherited from MiscUtils.NamedValueAccess.NamedValueAccess:

hasValueForKey(self, key)
  `Returns true if the key is available, although that does not
  guarantee that there will not be errors caused by retrieving the key.`

hasValueForName(self, keysString)

resetKeyBindings(self)

setValueForKey(self, key, value)
  `Suppose key is 'foo'. This method sets the value with the following precedence:
  1. Public attributes before private attributes
  2. Methods before non-methods
  More specifically, this method then uses one of the following:
  @@ 2000-03-04 ce: fill in
  ...or invokes handleUnknownSetKey().`

valueForKey(self, key, default=<class MiscUtils.NoDefault>)
  `Suppose key is 'foo'. This method returns the value with the following precedence:
  1. Methods before non-methods
  2. Public attributes before private attributes
  More specifically, this method then returns one of the following:
  * foo()
  * _foo()
  * self.foo
  * self._foo
  ...or default, if it was specified,
  otherwise invokes and returns result of valueForUnknownKey().
  Note that valueForUnknownKey(), normally returns an exception.
  See valueForName() which is a more advanced version of this method that allows
  multiple, qualified keys.`

valueForKeySequence(self, listOfKeys, default=None)

valueForName(self, keysString, default=None)
  `Returns the value for the given keysString. This is the more advanced version of
  valueForKey(), which can only handle single names. This method can handle
  'foo', 'foo1.foo2', 'a.b.c.d', etc. It will traverse dictionaries if needed.`

valueForUnknownKey(self, key, default)
  `# Errors`

valuesForNames(self, keys, default=None, defaults=None, forgive=0, includeNames=0)
  `Returns a list of values that match the given keys, each of which is passed
  through valueForName() and so could be of the form 'a.b.c'.
  keys is a sequence. default is any kind of object. defaults is a sequence.
  forgive and includeNames is a flag.
  If default is not None, then it is substituted when a key is not found.
  Otherwise, if defaults is not None, then it's corresponding/parallel value
  for the current key is substituted when a key is not found.
  Otherwise, if forgive=1, then unknown keys simply don't produce any values.
  Otherwise, if default and defaults are None, and forgive=0, then the unknown
  keys will probably raise an exception through valueForUnknownKey() although
  that method can always return a final, default value.
  if keys is None, then None is returned. If keys is an empty list, then None
  is returned.
  Often these last four arguments are specified by key.
  Examples:
  names = ['origin.x', 'origin.y', 'size.width', 'size.height']
  obj.valuesForNames(names)
  obj.valuesForNames(names, default=0.0)
  obj.valuesForNames(names, defaults=[0.0, 0.0, 100.0, 100.0])
  obj.valuesForNames(names, forgive=0)
  @@ 2000-03-04 ce: includeNames is only supported when forgive=1.
  It should be supported for the other cases.
  It should be documented.
  It should be included in the test cases.`

Functions

``

StringIO(...)
  `StringIO([s]) -- Return a StringIO-like stream for reading or writing`