public CommonItem(CommonItem item, bool transient, bool expired) // for cloning
{
SysProps = new NamedValueSet();
ItemKind = item.ItemKind;
Transient = transient;
Id = Guid.NewGuid();
AppScope = item.AppScope;
NetScope = item.NetScope;
Name = item.Name;
AppProps = new NamedValueSet(item.AppProps);
DataTypeName = item.DataTypeName;
Created = DateTimeOffset.Now;
StoreUSN = item.StoreUSN;
if (expired)
{
Expires = Created;
SysProps.Clear();
}
else
{
Expires = Created.Add(item.Expires - item.Created);
YData = item.YData;
YDataHash = CalculateBufferHash(YData);
YSign = item.YSign;
SysProps = new NamedValueSet(item.SysProps);
}
}