es.udc.gii.common.eaf.algorithm.fitness.comparator
Class MinimizingObjectiveComparator<T extends Individual>
java.lang.Object
es.udc.gii.common.eaf.algorithm.fitness.comparator.FitnessComparator<T>
es.udc.gii.common.eaf.algorithm.fitness.comparator.MinimizingObjectiveComparator<T>
- All Implemented Interfaces:
- java.util.Comparator<T>
public class MinimizingObjectiveComparator<T extends Individual>
- extends FitnessComparator<T>
This class compares two individuals considering only one of the objective
values of each individual. Lesser values are better, i.e. it minimizes a
given objective.
- Since:
- 1.0
- Author:
- Grupo Integrado de IngenierĂa (www.gii.udc.es)
Field Summary |
private int |
objectiveIndex
Objective index of the objective under comparison. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Comparator |
equals |
objectiveIndex
private int objectiveIndex
- Objective index of the objective under comparison.
MinimizingObjectiveComparator
public MinimizingObjectiveComparator()
compare
public int compare(T o1,
T o2)
- Compares one single objective value of two individuals. Which objective
is compared is given by an index returned by #getObjectiveIndex. For
example, if this index is 2, then the two individuals are compared
against the third objective value (indices start by 0). Lesser values
are considered better.
- Specified by:
compare
in interface java.util.Comparator<T extends Individual>
- Specified by:
compare
in class FitnessComparator<T extends Individual>
- Parameters:
o1
- - First individual.o2
- - Second individual.
- Returns:
- -1 if o1 is better than o2, 1 if o2 is better than o1 and 0 if
both individual have the same objective value for the given objective
index.
setObjectiveIndex
public void setObjectiveIndex(int index)
getObjectiveIndex
public int getObjectiveIndex()
toString
public java.lang.String toString()
- Overrides:
toString
in class java.lang.Object