public BTreeOnHeap(HeapOnNode heap, HeapID bTreeHeaderHeapID)
{
m_heap = heap;
m_bTreeHeaderHeapID = bTreeHeaderHeapID;
byte[] headerBytes = m_heap.GetHeapItem(bTreeHeaderHeapID);
BTreeHeader = new BTreeOnHeapHeader(headerBytes);
}
// We no longer create new TCs, we simply use the template and modify to another data tree
public static TableContext CreateNewTableContext(PSTFile file, List <TableColumnDescriptor> columns)
{
HeapOnNode heap = HeapOnNode.CreateNewHeap(file);
TableContextInfo tcInfo = new TableContextInfo();
tcInfo.rgTCOLDESC = columns;
tcInfo.UpdateDataLayout();
HeapID newUserRoot = heap.AddItemToHeap(tcInfo.GetBytes());
// The heap header may have just been updated
HeapOnNodeHeader header = heap.HeapHeader;
header.bClientSig = OnHeapTypeName.bTypeTC;
header.hidUserRoot = newUserRoot;
heap.UpdateHeapHeader(header);
BTreeOnHeapHeader bTreeHeader = new BTreeOnHeapHeader();
bTreeHeader.cbKey = TableContextRowID.RecordKeyLength;
bTreeHeader.cbEnt = TableContextRowID.RecordDataLength;
tcInfo.hidRowIndex = heap.AddItemToHeap(bTreeHeader.GetBytes());
// this will replace the item in place (as they have the same size since number of columns was not modified)
heap.ReplaceHeapItem(header.hidUserRoot, tcInfo.GetBytes());
return(new TableContext(heap, null));
}
/// <param name="subnodeBTree">Subnode BTree that will be associated with the new PC</param>
public static PropertyContext CreateNewPropertyContext(PSTFile file, SubnodeBTree subnodeBTree)
{
HeapOnNode heap = HeapOnNode.CreateNewHeap(file);
BTreeOnHeapHeader bTreeHeader = new BTreeOnHeapHeader();
bTreeHeader.cbKey = PropertyContextRecord.RecordKeyLength;
bTreeHeader.cbEnt = PropertyContextRecord.RecordDataLength;
HeapID newUserRoot = heap.AddItemToHeap(bTreeHeader.GetBytes());
// The heap header may have just been updated
HeapOnNodeHeader header = heap.HeapHeader;
header.bClientSig = OnHeapTypeName.bTypePC;
header.hidUserRoot = newUserRoot;
heap.UpdateHeapHeader(header);
heap.FlushToDataTree();
return(new PropertyContext(heap, subnodeBTree));
}
