private void handleEvent(EventBean theEvent, boolean isNew) {
Object groupByValuesKey = getGroupKey(theEvent);
// Get child views that belong to this group-by value combination
Object subViews = this.subViewsPerKey.get(groupByValuesKey);
// If this is a new group-by value, the list of subviews is null and we need to make clone
// sub-views
if (subViews == null) {
subViews = makeSubViews(this, propertyNames, groupByValuesKey, agentInstanceContext);
subViewsPerKey.put(groupByValuesKey, subViews);
}
// Construct a pair of lists to hold the events for the grouped value if not already there
Pair<Object, Object> pair = groupedEvents.get(subViews);
if (pair == null) {
pair = new Pair<Object, Object>(null, null);
groupedEvents.put(subViews, pair);
}
// Add event to a child view event list for later child update that includes new and old events
if (isNew) {
pair.setFirst(addUpgradeToDequeIfPopulated(pair.getFirst(), theEvent));
} else {
pair.setSecond(addUpgradeToDequeIfPopulated(pair.getSecond(), theEvent));
}
}
