codetools.contexts.adapted_data_context.AdaptedDataContext

class documentation

class AdaptedDataContext(DataContext, AdapterManagerMixin): (source)

Known subclasses: codetools.contexts.iterable_adapted_data_context.IterableAdaptedDataContext

A Context (namespace) that supports a list of adapters that can adapt key names or the process of getting/setting values in the context. It can be used as an execution namespace for expressions or adapted in a number of ways to provide operations on a masked set of its data, unit conversion of the data, enforcement that values retreived from the namespace (even if they are scalars) are retreived as arrays of a certain size, etc.

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.
Method	`keys`	Return the list of variables available in context.

Inherited from DataContext:

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 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 DataContext):

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

Inherited from AdapterManagerMixin:

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 __delitem__(self, name): (source)

overrides codetools.contexts.data_context.DataContext.__delitem__

Delete an item out of the context.

def __getattr__(self, attr): (source)

Undocumented

def __getitem__(self, name): (source)

overrides codetools.contexts.data_context.DataContext.__getitem__

Get the value bound to the variable 'name' from the context.

def __setitem__(self, name, value): (source)

overrides codetools.contexts.data_context.DataContext.__setitem__

Set the variable 'name' = value in the context.

def allows(self, value, name=None): (source)

overrides codetools.contexts.data_context.DataContext.allows

Determine whether value is allowed in this context. fixme: Adapters are not used in this calculation yet. They should be.

def keys(self): (source)

overrides codetools.contexts.data_context.DataContext.keys

overridden in codetools.contexts.iterable_adapted_data_context.IterableAdaptedDataContext

Return the list of variables available in context.