cells.cell.RuleThenInputCell

Package cells :: Module cell :: Class RuleThenInputCell

[frames] | no frames]

Class RuleThenInputCell
source code

object --+    
         |    
      Cell --+
             |
            RuleThenInputCell

Runs the rule to determine initial value, then acts like a InputCell

Instance Methods	[hide private]

__init__(self, owner, name=None, rule=lambda s, p: None, unchanged_if=None)
Initializes a RuleThenInputCell, whose initial value is determined by the passed rule but then acts like an InputCell

run(self)
You may not run() an RuleThenInputCell after the initial run()

Inherited from Cell: add_called_by, add_calls, called_by_list, calls_list, changed, getvalue, propogate, propogation_list, remove_called_bys, remove_cb, reset_calls, set, updatecell

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

Class Variables	[hide private]

Inherited from object: __class__

Instance Variables	[hide private]

Inherited from Cell: called_by, calls, synapse_space

Method Details	[hide private]

init(self, owner, name=None, rule=lambda s, p: None, unchanged_if=None)
(Constructor)

Initializes a RuleThenInputCell, whose initial value is determined by the passed rule but then acts like an InputCell

Parameters:

name - This cell's name. When using a Cell with Models, this parameter is assigned automatically.
rule - Define a rule which backs this cell. You must only define one of rule or value. Lacking celltype, this creates a RuleCell. This must be passed a callable with the signature f(self, prev) -> value, where self is the model instance the cell is in and prev is the cell's out-of-date value.
unchanged_if - Sets a function to determine if a cell's value has changed. The signature for the passed function is f(old, new) -> bool.

Returns:

None

Raises:

RuleCellSetError - If value is passed as a parameter

Overrides: Cell.__init__

run(self)

You may not run() an RuleThenInputCell after the initial run()

Returns:

None

Raises:

InputCellRunError - Raises if instance has been bound

Overrides: Cell.run