org.chocosolver.cutoffseq

Class GeometricalCutoffStrategy

java.lang.Object

org.chocosolver.cutoffseq.AbstractCutoffStrategy

org.chocosolver.cutoffseq.GeometricalCutoffStrategy

All Implemented Interfaces:

ICutoffStrategy

public final class GeometricalCutoffStrategy
extends AbstractCutoffStrategy

A geometrical cutoff strategy. It is based on two parameters: g for geometricalFactor and s for scaleFactor. At step n, the next cutoff is computed with the following function : s*g^n Example with s=1 and g=1.3: 1, 2, 2, 3, 3, 4, 5, 7, 9, 11, 14, 18, 24, 31, 40, ...

Since:

13/05/11

Author:

Charles Prud'homme, Arnaud Malapert

Field Summary

Fields inherited from class org.chocosolver.cutoffseq.AbstractCutoffStrategy

scaleFactor

Constructor Summary

Constructors

Constructor and Description
GeometricalCutoffStrategy(long s, double g) A geometrical cutoff strategy.

Method Summary

Modifier and Type	Method and Description
long	getNextCutoff()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometricalCutoffStrategy

public GeometricalCutoffStrategy(long s,
                                 double g)
                          throws IllegalArgumentException

A geometrical cutoff strategy. At step n, the next cutoff is computed with the following function : s*g^n

Parameters:

s - scale factor

g - geometrical factor

Throws:

IllegalArgumentException - if g is not strictly greater than 1

Method Detail

getNextCutoff

public long getNextCutoff()

Returns:

at call n, the next cutoff is computed with the following function : s*g^n

toString

public String toString()

Overrides:

toString in class Object