/// <summary>
/// Note:
/// 1. helper should be the realy key used in the b-tree.
/// </summary>
/// <param name="segmentId"></param>
/// <param name="helper"></param>
/// <param name="bytes"></param>
/// <param name="offset"></param>
/// <param name="count"></param>
public override Segment Deserialize(uint segmentId, object helper, byte[] bytes, int offset, int count)
{
IKey keyFactory = (IKey)helper;
int pos = offset;
short order = OOD.Utility.Bytes.Unpack2(bytes, pos);
BNode result = new BNode(segmentId, order);
pos += 2;
result.m_leaf = (bytes[pos++] == 1);
result.m_keyNums = OOD.Utility.Bytes.Unpack2(bytes, pos);
pos += 2;
for (int i = 0; i < result.m_keyNums; i++)
{
int length = OOD.Utility.Bytes.Unpack2(bytes, pos);
pos += 2;
result.m_keys[i] = keyFactory.Deserialize(bytes, pos, length);
pos += length;
}
for (int i = 0; i <= result.m_keyNums; i++)
{
result.m_children[i] = OOD.Utility.Bytes.Unpack4U(bytes, pos);
pos += 4;
}
result.m_dirty = false;
return(result);
}