public void Add(T eventData)
{
String uid = uidFunction(eventData);
DateTime dateTime = dateFunction(eventData);
if (uids.Contains(uid))
{
return;
}
historyEntry <T> entry = new historyEntry <T>(eventData, dateTime, uid);
events.Add(entry);
uids.Add(uid);
if (first_entry == null)
{
first_entry = entry;
}
else if (last_entry == null)
{
last_entry = entry;
}
else
{
if (first_entry.dateTime > dateTime)
{
first_entry = entry;
}
if (last_entry.dateTime < dateTime)
{
last_entry = entry;
}
}
}
public T GetEntryData(String uid)
{
historyEntry <T> entry = GetEntry(uid);
if (entry != null)
{
return(entry.data);
}
return(null);
}
public Boolean Remove(String uid)
{
historyEntry <T> entry = GetEntry(uid);
if (entry != null)
{
events.Remove(entry);
uids.Remove(uid);
if (entry == last_entry)
{
last_entry = null;
}
if (entry == first_entry)
{
first_entry = null;
}
return(true);
}
return(false);
}
