cells.cell.LazyCell

object --+ | Cell --+ | RuleCell --+ | LazyCell

get()

Instance Methods	[hide private]

__init__(self, owner, name=None, rule=lambda s, p: None, unchanged_if=None)
Initializes a LazyCell object, which may not be set and whose value is determined by a rule.

Inherited from RuleCell: set

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, run, 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

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

source code

Initializes a LazyCell object, which may not be set and whose value is determined by a rule.

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 value, where self is the model instance the cell is in and prev is the cell's out-of-date value.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: RuleCell.__init__

Class LazyCell source code

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

Class LazyCell
source code

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