jmetal.util.archive
Class AdaptiveGridArchive

java.lang.Object
  jmetal.core.SolutionSet
      jmetal.util.archive.Archive
          jmetal.util.archive.AdaptiveGridArchive

All Implemented Interfaces:

java.io.Serializable

public class AdaptiveGridArchive
extends Archive

This class implements an archive based on an adaptive grid used in PAES

See Also:

Serialized Form

Field Summary

Fields inherited from class jmetal.core.SolutionSet

solutionsList_

Constructor Summary

AdaptiveGridArchive(int maxSize, int bisections, int objectives)
Constructor.

Method Summary

boolean	add(Solution solution) Adds a Solution to the archive.
AdaptiveGrid	getGrid() Returns the AdaptativeGrid used

Methods inherited from class jmetal.core.SolutionSet

add, best, clear, get, getCapacity, getMaxSize, indexWorst, iterator, printFeasibleFUN, printFeasibleVAR, printObjectives, printObjectivesToFile, printVariablesToFile, remove, replace, setCapacity, size, sort, union, worst, writeObjectivesToMatrix

Methods inherited from class java.lang.Object

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

Constructor Detail

AdaptiveGridArchive

public AdaptiveGridArchive(int maxSize,
                           int bisections,
                           int objectives)

Constructor.

Parameters:

maxSize - The maximum size of the archive

bisections - The maximum number of bi-divisions for the adaptive grid.

objectives - The number of objectives.

Method Detail

add

public boolean add(Solution solution)

Adds a Solution to the archive. If the Solution is dominated by any member of the archive then it is discarded. If the Solution dominates some members of the archive, these are removed. If the archive is full and the Solution has to be inserted, one Solution of the most populated hypercube of the adaptive grid is removed.

Overrides:

add in class SolutionSet

Parameters:

solution - The Solution

Returns:

true if the Solution has been inserted, false otherwise.

getGrid

public AdaptiveGrid getGrid()

Returns the AdaptativeGrid used

Returns:

the AdaptativeGrid