public static BplusTreeLong SetupFromExistingStream(System.IO.Stream fromfile, long StartSeek)
{
int dummyId = System.Globalization.CultureInfo.InvariantCulture.LCID;
BplusTreeLong result = new BplusTreeLong(fromfile, 7, 100, StartSeek, dummyId); // dummy values for nodesize, keysize
result.readHeader();
result.buffers = BufferFile.SetupFromExistingStream(fromfile, StartSeek+result.headersize);
if (result.buffers.buffersize != result.buffersize)
{
throw new BplusTreeException("inner and outer buffer sizes should match");
}
if (result.rootSeek!=NULLBUFFERNUMBER)
{
result.root = new BplusNode(result, null, -1, true);
result.root.LoadFromBuffer(result.rootSeek);
}
return result;
}
