Module org.maxicp

Package org.maxicp.cp.engine.constraints

Class Sorted

java.lang.Object

org.maxicp.cp.engine.core.AbstractCPConstraint

org.maxicp.cp.engine.constraints.Sorted

All Implemented Interfaces:

CPConstraint, ConcreteConstraint<ConcreteCPModel>

public class Sorted
extends AbstractCPConstraint

Sorted constraint, x is sorted in y according to permutation o

Author:

pschaus

Constructor Summary

Constructors

Constructor	Description
Sorted(CPIntVar[] x, CPIntVar[] o, CPIntVar[] y)	x is sorted in y according to permutation o y[0] invalid input: '<'= y[1] invalid input: '<'= ...

Method Summary

Modifier and Type	Method	Description
void	post()	Initializes the constraint when it is posted to the solver.
void	propagate()	Propagates the constraint.

Methods inherited from class org.maxicp.cp.engine.core.AbstractCPConstraint

getSolver, isActive, isScheduled, priority, registerDelta, setActive, setScheduled, updateDeltas

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Sorted

public Sorted(CPIntVar[] x,
 CPIntVar[] o,
 CPIntVar[] y)

x is sorted in y according to permutation o y[0] invalid input: '<'= y[1] invalid input: '<'= ... invalid input: '<'= y[n-1] x[i] = y[o[i]] for all i

Parameters:

x - a set of n variables

o - a permutation of 0..n-1, so that x[i] = y[o[i]]

y - a set of n variables, y[i] is the ith smallest value of x

Method Details

post

public void post()

Description copied from interface: CPConstraint

Initializes the constraint when it is posted to the solver.

Specified by:

post in interface CPConstraint

Overrides:

post in class AbstractCPConstraint

propagate

public void propagate()

Description copied from interface: CPConstraint

Propagates the constraint.

Specified by:

propagate in interface CPConstraint

Overrides:

propagate in class AbstractCPConstraint