public void Update(
EventBean[] newData,
EventBean[] oldData)
{
// Remove last old data posted in previous post
if (lastOldData != null) {
for (var i = 0; i < lastOldData.Length; i++) {
PriorEventMap.Remove(lastOldData[i]);
}
}
// Post new data to rolling buffer starting with the oldest
if (newData != null) {
for (var i = 0; i < newData.Length; i++) {
var newEvent = newData[i];
// Add new event
NewEvents.Add(newEvent);
// Save prior index events in array
var priorEvents = new EventBean[priorToIndexesSize];
for (var j = 0; j < priorToIndexesSize; j++) {
var priorIndex = priorToIndexes[j];
priorEvents[j] = NewEvents.Get(priorIndex);
}
PriorEventMap.Put(newEvent, priorEvents);
}
}
// Save old data to be removed next time we get posted results
lastOldData = oldData;
}
public EventBean GetRelativeToEvent(
EventBean theEvent,
int priorToIndex)
{
if (priorToIndex >= priorToIndexesSize) {
throw new ArgumentException(
"Index " + priorToIndex + " not allowed, max size is " + priorToIndexesSize);
}
var priorEvents = PriorEventMap.Get(theEvent);
if (priorEvents == null) {
throw new IllegalStateException("Event not currently in collection, event=" + theEvent);
}
return priorEvents[priorToIndex];
}
