/// <summary>
/// Move current item pointer to next item relative to the current item
/// </summary>
/// <returns></returns>
public override bool MoveNext()
{
if (RootNode == null)
{
throw new InvalidOperationException("Can't MoveNext, ObjectStore is close.");
}
if (HintSequentialRead)
{
if (_sequentialReadBatchedIDs.Count == 0)
{
LoadSequentialReadBatchedIDs();
}
if (_sequentialReadIndex < _sequentialReadBatchedIDs.Count)
{
_sequentialReadIndex++;
}
if (_sequentialReadIndex == _sequentialReadBatchedIDs.Count)
{
LoadSequentialReadBatchedIDs();
}
return(_sequentialReadBatchedIDs.Count > 0);
}
if (CurrentItem != null)
{
BeginTreeMaintenance();
try
{
BTreeNodeOnDisk o = CurrentItem.GetNode(this);
if (
!(CurrentItem.NodeAddress == -1 || o.Slots == null || o.Slots[CurrentItem.NodeItemIndex] == null))
{
return(o.MoveNext(this));
}
}
finally
{
EndTreeMaintenance();
}
}
return(false);
}