Package org.uma.jmetal.util.grouping.impl

Class ListGrouping<C extends Comparable<C>>

java.lang.Object

org.uma.jmetal.util.grouping.impl.ListGrouping<C>

Type Parameters:

C -

All Implemented Interfaces:

CollectionGrouping<List<C>>

Direct Known Subclasses:

ListLinearGrouping, ListOrderedGrouping

public abstract class ListGrouping<C extends Comparable<C>>
extends Object
implements CollectionGrouping<List<C>>

Abstract class that groups a list of Comparable entities by some order in the collection. The number of groups is a constructor parameter and the group size is computed by dividing the list size by the number of groups. If the remainder of this division is not zero, the last group will contain the remaining index values (so, its size would be higher than the size of the rest of groups).

Author:

Antonio J. Nebro

Field Summary

Fields

Modifier and Type	Field	Description
protected List<List<Integer>>	groups
protected List<Integer>	indices
protected final int	numberOfGroups

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ListGrouping(int numberOfGroups)

Method Summary

Modifier and Type	Method	Description
protected void	createGroups()
List<Integer>	group(int groupIndex)
int	numberOfGroups()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.uma.jmetal.util.grouping.CollectionGrouping

computeGroups

Field Details

numberOfGroups

protected final int numberOfGroups

indices

protected List<Integer> indices

groups

protected List<List<Integer>> groups

Constructor Details

ListGrouping

protected ListGrouping(int numberOfGroups)

Method Details

createGroups

protected void createGroups()

numberOfGroups

public int numberOfGroups()

Specified by:

numberOfGroups in interface CollectionGrouping<C extends Comparable<C>>

group

public List<Integer> group(int groupIndex)

Specified by:

group in interface CollectionGrouping<C extends Comparable<C>>