minicp.engine.constraints

Class TableDecomp

java.lang.Object

minicp.engine.core.AbstractConstraint

minicp.engine.constraints.TableDecomp

All Implemented Interfaces:

Constraint

public class TableDecomp
extends AbstractConstraint

Constructor Summary

Constructors

Constructor and Description
TableDecomp(IntVar[] x, int[][] table) Decomposition of a table constraint.

Method Summary

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

Methods inherited from class minicp.engine.core.AbstractConstraint

getSolver, isActive, isScheduled, setActive, setScheduled

Methods inherited from class java.lang.Object

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

Constructor Detail

TableDecomp

public TableDecomp(IntVar[] x,
                   int[][] table)

Decomposition of a table constraint.

The table constraint ensures that x is a row from the given table. More exactly, there exist some row i such that x[0]==table[i][0], x[1]==table[i][1], etc.

This constraint is sometimes called in extension constraint as the user enumerates the set of solutions that can be taken by the variables.

Parameters:

x - the non empty set of variables to constraint

table - the possible set of solutions for x. The second dimension must be of the same size as the array x.

Method Detail

post

public void post()

Description copied from interface: Constraint

Initializes the constraint when it is posted to the solver.

Specified by:

post in interface Constraint

Overrides:

post in class AbstractConstraint

propagate

public void propagate()

Description copied from interface: Constraint

Propagates the constraint.

Specified by:

propagate in interface Constraint

Overrides:

propagate in class AbstractConstraint