Abstract Factory classes and methods.

A Factory build Functor (Nodes or Pluggings) from its description. Factories instantiates Functors.

class core.factory.AbstractFactory

Bases: object

Abstract Factory is Factory base class.

Properties:

• name
• metainfo
• module
• distribution (aka egg name)

instantiate(call_stack=[])

Return a node instance

Parameters:call_stack -- the list of NodeFactory id already in call stack (in order to avoir infinite recursion)

is_valid()

Return True if the factory is valid else raise an exception

mimetype = 'openalea/factory'