return iterator.hasNext();
}
public Entry<Long, AbstractGraphPanelChartElement> next() {
Entry<Long, GraphPanelChartSumElement> entry = iterator.next();
GraphPanelChartSumElement ret = entry.getValue();
//log.info("Rolling: " + entry.getKey() + " " + rollingSum);
ExactEntry retValue = null;
if (isRollingSum) {
rollingSum += ret.getValue();
retValue = new ExactEntry(entry.getKey(), new GraphPanelChartSumElement(rollingSum));
} else {
retValue = new ExactEntry(entry.getKey(), new GraphPanelChartSumElement(ret.getValue()));
}
return retValue;
}