ortools.constraint_solver.pywrapcp.Demon Class Reference

Detailed Description

A Demon is the base element of a propagation queue. It is the main
  object responsible for implementing the actual propagation
  of the constraint and pruning the inconsistent values in the domains
  of the variables. The main concept is that demons are listeners that are
  attached to the variables and listen to their modifications.
There are two methods:
 - Run() is the actual method called when the demon is processed.
 - priority() returns its priority. Standard priorities are slow, normal
   or fast. "immediate" is reserved for variables and is treated separately.

Definition at line 2322 of file pywrapcp.py.

Inheritance diagram for ortools.constraint_solver.pywrapcp.Demon:

Public Member Functions
	__init__ (self)
	RunWrapper (self, s)
	Priority (self)
	DebugString (self)
	Inhibit (self, s)
	Desinhibit (self, s)
	__disown__ (self)
Public Member Functions inherited from ortools.constraint_solver.pywrapcp.BaseObject
	__init__ (self)
	__str__ (self)
	__repr__ (self)
	__disown__ (self)

Properties
	thisown = property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc="The membership flag")
Properties inherited from ortools.constraint_solver.pywrapcp.BaseObject
	thisown = property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc="The membership flag")

Constructor & Destructor Documentation

__init__()

ortools.constraint_solver.pywrapcp.Demon.__init__

(

self

)

This indicates the priority of a demon. Immediate demons are treated
separately and corresponds to variables.

Definition at line 2338 of file pywrapcp.py.

Member Function Documentation

__disown__()

ortools.constraint_solver.pywrapcp.Demon.__disown__

(

self

)

Definition at line 2375 of file pywrapcp.py.

DebugString()

ortools.constraint_solver.pywrapcp.Demon.DebugString

(

self

)

Reimplemented from ortools.constraint_solver.pywrapcp.BaseObject.

Reimplemented in ortools.constraint_solver.pywrapcp.PyConstraintDemon, and ortools.constraint_solver.pywrapcp.PyDemon.

Definition at line 2362 of file pywrapcp.py.

Desinhibit()

ortools.constraint_solver.pywrapcp.Demon.Desinhibit	(		self,
			s )

This method un-inhibits the demon that was previously inhibited.

Definition at line 2372 of file pywrapcp.py.

Inhibit()

ortools.constraint_solver.pywrapcp.Demon.Inhibit	(		self,
			s )

This method inhibits the demon in the search tree below the
current position.

Definition at line 2365 of file pywrapcp.py.

Priority()

ortools.constraint_solver.pywrapcp.Demon.Priority

(

self

)

This method returns the priority of the demon. Usually a demon is
fast, slow or normal. Immediate demons are reserved for internal
use to maintain variables.

Reimplemented in ortools.constraint_solver.pywrapcp.PyConstraintDemon.

Definition at line 2354 of file pywrapcp.py.

RunWrapper()

ortools.constraint_solver.pywrapcp.Demon.RunWrapper	(		self,
			s )

This is the main callback of the demon.

Reimplemented in ortools.constraint_solver.pywrapcp.PyDemon.

Definition at line 2350 of file pywrapcp.py.

Property Documentation

thisown

ortools.constraint_solver.pywrapcp.Demon.thisown = property(lambda x: x.this.own(), lambda x, v: x.this.own(v), doc="The membership flag")

static

Definition at line 2335 of file pywrapcp.py.

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The documentation for this class was generated from the following file:

• build/python/ortools/constraint_solver/pywrapcp.py