T - generic type of the AbstractListChromosomes for crossoverpublic class NPointCrossover<T> extends Object implements CrossoverPolicy
-C- denotes a crossover point
-C- -C- -C- -C-
p1 = (1 0 | 1 0 0 1 | 0 1 1) X p2 = (0 1 | 1 0 1 0 | 1 1 1)
\----/ \-------/ \-----/ \----/ \--------/ \-----/
|| (*) || || (**) ||
VV (**) VV VV (*) VV
/----\ /--------\ /-----\ /----\ /--------\ /-----\
c1 = (1 0 | 1 0 1 0 | 0 1 1) X c2 = (0 1 | 1 0 0 1 | 0 1 1)
This policy works only on AbstractListChromosome, and therefore it
is parameterized by T. Moreover, the chromosomes must have same lengths.| Constructor and Description |
|---|
NPointCrossover(int crossoverPoints)
Creates a new
NPointCrossover policy using the given number of points. |
| Modifier and Type | Method and Description |
|---|---|
ChromosomePair |
crossover(Chromosome first,
Chromosome second)
Performs a N-point crossover.
|
int |
getCrossoverPoints()
Returns the number of crossover points used by this
CrossoverPolicy. |
public NPointCrossover(int crossoverPoints)
throws NotStrictlyPositiveException
NPointCrossover policy using the given number of points.
Note: the number of crossover points must be < chromosome length - 1.
This condition can only be checked at runtime, as the chromosome length is not known in advance.
crossoverPoints - the number of crossover pointsNotStrictlyPositiveException - if the number of crossoverPoints is not strictly positivepublic int getCrossoverPoints()
CrossoverPolicy.public ChromosomePair crossover(Chromosome first, Chromosome second) throws DimensionMismatchException, MathIllegalArgumentException
-C- denotes a crossover point
-C- -C- -C- -C-
p1 = (1 0 | 1 0 0 1 | 0 1 1) X p2 = (0 1 | 1 0 1 0 | 1 1 1)
\----/ \-------/ \-----/ \----/ \--------/ \-----/
|| (*) || || (**) ||
VV (**) VV VV (*) VV
/----\ /--------\ /-----\ /----\ /--------\ /-----\
c1 = (1 0 | 1 0 1 0 | 0 1 1) X c2 = (0 1 | 1 0 0 1 | 0 1 1)
crossover in interface CrossoverPolicyfirst - first parent (p1)second - second parent (p2)MathIllegalArgumentException - iff one of the chromosomes is
not an instance of AbstractListChromosomeDimensionMismatchException - if the length of the two chromosomes is differentCopyright © 2003–2016 The Apache Software Foundation. All rights reserved.