/**
* Written by Gil Tene of Azul Systems, and released to the public domain,
* as explained at http://creativecommons.org/publicdomain/zero/1.0/
*
* @author Gil Tene
*/
package org.HdrHistogram_voltpatches;
import java.util.Iterator;
/**
* Used for iterating through all recorded histogram values using the finest granularity steps supported by the
* underlying representation. The iteration steps through all non-zero recorded value counts, and terminates when
* all recorded histogram values are exhausted.
*/
public class RecordedValuesIterator extends AbstractHistogramIterator implements Iterator<HistogramIterationValue> {
int visitedIndex;
/**
* Reset iterator for re-use in a fresh iteration over the same histogram data set.
*/
public void reset() {
reset(histogram);
}
private void reset(final AbstractHistogram histogram) {
super.resetIterator(histogram);
visitedIndex = -1;
}
/**
* @param histogram The histogram this iterator will operate on
*/
public RecordedValuesIterator(final AbstractHistogram histogram) {
reset(histogram);
}
@Override
void incrementIterationLevel() {
visitedIndex = currentIndex;
}
@Override
boolean reachedIterationLevel() {
long currentCount = histogram.getCountAtIndex(currentIndex);
return (currentCount != 0) && (visitedIndex != currentIndex);
}
}