protected virtual void OnUpgrade(LinkedListNode <ICacheItem> item)
{
lock (this)
{
if (item.List == mItemLink)
{
ICacheItem data = item.Value;
mItemLink.Remove(item);
mItemTable.Remove(data.Key);
if (UpgradeHandler != null)
{
UpgradeHandler.Upgrade(data, this);
}
}
}
}