Package topo :: Package param :: Class ClassSelector

Class ClassSelector

             object --+        
                      |        
parameterized.Parameter --+    
                          |    
                   Selector --+
                              |
                             ClassSelector

Known Subclasses:

Dict

Parameter whose value is an instance of the specified class.

Nested Classes

[hide private]

Inherited from parameterized.Parameter: __metaclass__

Instance Methods

[hide private]

__init__(self, class_, default=None, instantiate=True, allow_None=False, **params)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

_check_value(self, val, obj=None)
val must be None or an instance of self.class_

source code

__set__(self, obj, val)
Set the value for this Parameter.

source code

get_range(self)
Return the possible types for this parameter's value.

source code

Inherited from parameterized.Parameter: __delete__, __get__, __getstate__, __setstate__

Inherited from parameterized.Parameter (private): _set_instantiate, _set_names

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

Class Variables

[hide private]

__classdoc = '\n Parameter whose value is an instance of th...
str(object) -> string

Properties

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allow_None

class_

Inherited from parameterized.Parameter: constant, default, doc, instantiate, precedence, readonly

Inherited from parameterized.Parameter (private): _attrib_name, _internal_name

Inherited from object: __class__

Method Details

[hide private]

init(self, class_, default=None, instantiate=True, allow_None=False, **params)
(Constructor)

source code

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

Overrides: object.__init__: (inherited documentation)

set(self, obj, val)

source code

Set the value for this Parameter.

If called for a Parameterized class, set that class's value (i.e. set this Parameter object's 'default' attribute).

If called for a Parameterized instance, set the value of this Parameter on that instance (i.e. in the instance's __dict__, under the parameter's internal_name).

If the Parameter's constant attribute is True, only allows the value to be set for a Parameterized class or on uninitialized Parameterized instances.

If the Parameter's readonly attribute is True, only allows the value to be specified in the Parameter declaration inside the Parameterized source code. A read-only parameter also cannot be set on a Parameterized class.

Note that until we support some form of read-only object, it is still possible to change the attributes of the object stored in a constant or read-only Parameter (e.g. the left bound of a BoundingBox).

Overrides: parameterized.Parameter.__set__: (inherited documentation)

get_range(self)

source code


Return the possible types for this parameter's value.

(I.e. return {name: <class>} for all classes that are
concrete_descendents() of self.class_.)

Only classes from modules that have been imported are added
(see concrete_descendents()).

Overrides: Selector.get_range

Class Variable Details

[hide private]

__classdoc

str(object) -> string

Return a nice string representation of the object. If the argument is a string, the return value is the same object.

Value:

'''
    Parameter whose value is an instance of the specified class.    
    '''

Class ClassSelector

__init__(self, class_, default=None, instantiate=True, allow_None=False, **params) (Constructor)

__set__(self, obj, val)

get_range(self)

__classdoc

init(self, class_, default=None, instantiate=True, allow_None=False, **params)
(Constructor)

set(self, obj, val)