public TableContext(NodeDataDTO nodeData)
{
NodeData = nodeData;
HeapNode = new HN(NodeData);
var tcinfoHID = HeapNode.HeapNodes[0].Header.UserRoot;
var tcinfoHIDbytes = HeapNode.GetHIDBytes(tcinfoHID);
TCHeader = new TCINFOHEADER(tcinfoHIDbytes.Data);
RowIndexBTH = new BTH(HeapNode, TCHeader.RowIndexLocation);
ReverseRowIndex = new Dictionary <uint, uint>();
foreach (var prop in RowIndexBTH.Properties)
{
var temp = BitConverter.ToUInt32(prop.Value.Data, 0);
ReverseRowIndex.Add(temp, BitConverter.ToUInt32(prop.Key, 0));
}
RowMatrix = new TCRowMatrix(this, RowIndexBTH);
}
public BTH(HN heapNode, HID userRoot = null)
{
HeapNode = heapNode;
var bthHeaderHID = userRoot ?? heapNode.HeapNodes[0].Header.UserRoot;
Header = new BTHHEADER(HeapNodeBO.GetHNHIDBytes(heapNode, bthHeaderHID));
Root = new BTHIndexNode(Header.BTreeRoot, this, (int)Header.NumLevels);
Properties = new Dictionary <byte[], BTHDataEntry>(new ArrayUtilities.ByteArrayComparer());
var stack = new Stack <BTHIndexNode>();
stack.Push(Root);
while (stack.Count > 0)
{
var cur = stack.Pop();
try
{
if (cur.Data != null)
{
foreach (var entry in cur.Data.DataEntries)
{
Properties.Add(entry.Key, entry);
}
}
}
catch (Exception ex)
{
throw new Exception("Cannot display this view. Failed to create all properties in this location", ex);
}
if (cur.Children != null)
{
foreach (var child in cur.Children)
{
stack.Push(child);
}
}
}
}
public static HNDataDTO GetHNHIDBytes(HN heapNode, HID hid)
{
var hnblock = heapNode.HeapNodes[(int)hid.hidBlockIndex];
return(hnblock.GetAllocation(hid));
}