codetools.contexts.iterable_adapted_data_context.IterableAdaptedDataContext

class documentation

class IterableAdaptedDataContext(AdaptedDataContext): (source)

An AdaptedDataContext whose iteration includes any key mapped by any NameAdapter to an existing key. This is useful for presenting the user with a list of available names (keys). It is not so useful for obtaining a list of values to be operated on, since any values whose keys are thus remapped would be included more than once. Fixme: This separate subclass may not be necessary. Perhaps these methods could simply be moved into AdaptedDataContext, but for now, to ensure no old code is broken, we keep them separate.

Method keys Return the list of keys available in the adapted context. Does not include any key which is mapped by an adapter to an undefined key (i.e. which would fail as an argument to __getitem__ or return False as an argument to __contains__).

Inherited from AdaptedDataContext:

Method	`__delitem__`	Delete an item out of the context.
Method	`__getattr__`	Undocumented
Method	`__getitem__`	Get the value bound to the variable 'name' from the context.
Method	`__setitem__`	Set the variable 'name' = value in the context.
Method	`allows`	Determine whether value is allowed in this context.

Inherited from DataContext (via AdaptedDataContext):

Method	`__contains__`	Undocumented
Method	`__eq__`	Don't allow objects of different classes to be equal.
Method	`__iter__`	Undocumented
Method	`__len__`	Undocumented
Method	`__ne__`	Undocumented
Method	`__repr__`	Undocumented
Method	`__str__`	Undocumented
Method	`checkpoint`	Make a shallow copy of the context.
Class Variable	`name`	Undocumented
Class Variable	`subcontext`	Undocumented

Inherited from ListenableMixin (via AdaptedDataContext, DataContext):

Method	`deferred_events`	Context manager that sets defer_events to False
Instance Variable	`defer_events`	Undocumented
Method	`_add_deferred_event`	Defer this event.
Method	`_defer_events_changed`	Undocumented
Method	`_defer_events_changed_refire`	Undocumented
Method	`_fire_event`	Fire an ItemsModifiedEvent.
Class Variable	`_deferred_events`	Undocumented

Inherited from PersistableMixin (via AdaptedDataContext, DataContext):

Static Method	`load`	Unpickle the context from a file
Method	`save`	Pickle the data context out to a file

Inherited from AdapterManagerMixin (via AdaptedDataContext):

Method	`pop_adapter`	Remove the 'top' from the top of the adapter stack.
Method	`push_adapter`	Add an adapter to the 'top' of the adapter stack.
Method	`_adapt_getitem`	Apply adapters in order, calling their adapt_getitem() method.
Method	`_adapt_name`	Apply adapters in order, calling their adapt_name method.
Method	`_adapt_setitem`	Apply dapters in reverse order, calling their adapt_setitem() method.

def keys(self): (source)

overrides codetools.contexts.adapted_data_context.AdaptedDataContext.keys

Return the list of keys available in the adapted context. Does not include any key which is mapped by an adapter to an undefined key (i.e. which would fail as an argument to __getitem__ or return False as an argument to __contains__).