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package jcgp.backend.statistics;
/**
* This class encapsulates the data contained in a log entry.
* <br><br>
* Once constructed, data can only be retrieved. Note that
* the generation argument in the constructor (and consequently
* the value returned by {@code getGeneration()} refer to the
* last generation when improvement occurred.
*
* @see StatisticsLogger
* @author Eduardo Pedroni
*
*/
public class RunEntry {
private int generation, activeNodes;
private double bestFitness;
private boolean successful;
/**
* Creates a new run entry for a logger.
*
* @param generation the generation when fitness improvement last occurred.
* @param fitness the best fitness achieved.
* @param active the number of active nodes in the best solution found.
* @param successful whether or not the run found a perfect solution.
*/
public RunEntry(int generation, double fitness, int active, boolean successful) {
this.generation = generation;
this.bestFitness = fitness;
this.activeNodes = active;
this.successful = successful;
}
/**
* @return the generation when improvement last occurred.
*/
public int getGeneration() {
return generation;
}
/**
* @return the best fitness achieved during the run.
*/
public double getFitness() {
return bestFitness;
}
/**
* @return true if the run was successful.
*/
public boolean isSuccessful() {
return successful;
}
/**
* @return the number of active nodes in the best solution found.
*/
public int getActiveNodes() {
return activeNodes;
}
}
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