net.openai.ai.ga.selection.common
Class SelectUnion

java.lang.Object
  |
  +--net.openai.ai.ga.selection.common.SelectUnion

All Implemented Interfaces:

SelectionAlgorithm

public class SelectUnion

extends java.lang.Object

implements SelectionAlgorithm

SelectUnion is a SelectionAlgorithm that will return the union of the results of two specified SelectionAlgorithms.

Since:

JDK1.3

Version:

%I%, %G%

Author:

Jared Grubb

Constructor Summary

SelectUnion(SelectionAlgorithm first, SelectionAlgorithm second)
Creates a new SelectUnion object for taking the union of the Populations returned by the two passed SelectionAlgorithms.

Method Summary

Population

selectFromPopulation(Population pop) Returns a Population that represents the union (junction) of the two SelectionAlgorithms specified in the constructor.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectUnion

public SelectUnion(SelectionAlgorithm first,
                   SelectionAlgorithm second)

Creates a new SelectUnion object for taking the union of the Populations returned by the two passed SelectionAlgorithms.

Parameters:

first - the first SelectionAlgorithm

second - the second SelectionAlgorithm

Method Detail

selectFromPopulation

public Population selectFromPopulation(Population pop)

Returns a Population that represents the union (junction) of the two SelectionAlgorithms specified in the constructor. The return is the result of the first selection algorithm, with the results of the second added to it via the Population.addCells() method. If the first selection algorithm returns a null then a NullPointerException will be thrown. If the second one returns a null, the the results of the first will be returned unchanged.

Specified by:

selectFromPopulation in interface SelectionAlgorithm

Parameters:

pop - the Population to choose from

Returns:

the union Population of the two selection algorithms