protected virtual void GetRecord(int x, ref IndexFileRecord r)
{
if (r.Col == null)
{
r.Col = new Value[ColStore];
}
int off = NodeOverhead + NodeBase + x * NodeSize;
for (int i = 0; i < ColStore; i += 1)
{
DataType t = Inf.Types[i];
int size = DTI.Size(t);
ulong u = Get(off, size);
off += size;
if (t == DataType.Float)
{
u = Conv.UnpackFloat((uint)u);
}
else if (t == DataType.Int)
{
u = (ulong)(long)(int)(uint)u;
}
else if (t == DataType.Smallint)
{
u = (ulong)(long)(short)(ushort)u;
}
else if (t == DataType.Tinyint)
{
u = (ulong)(long)(sbyte)(byte)u;
}
r.Col[i].L = (long)u;
if (t == DataType.String)
{
r.Col[i]._O = Database.DecodeString((long)u);
}
else if (t == DataType.Binary)
{
r.Col[i]._O = Database.DecodeBinary((long)u);
}
}
}
public override bool Get(long id, Value[] row, bool [] used)
{
if (id <= 0 || id > RowCount)
{
return(false);
}
DF.Position = (id - 1) * RowSize;
int ix; byte [] RB = DF.FastRead(RowSize, out ix);
if (RB[ix++] == 0)
{
return(false); // Row has been deleted
}
row[0].L = id;
DataType [] types = Cols.Types;
byte [] sizes = Cols.Sizes;
for (int i = 1; i < types.Length; i += 1)
{
int size = sizes[i];
if (used == null || used [i]) // Column not skipped
{
DataType t = types[i];
long x = (long)Util.Get(RB, ix, size, t);
row[i].L = x;
if (t <= DataType.String)
{
row[i]._O =
t == DataType.Binary ? (object)Db.DecodeBinary(x): (object)Db.DecodeString(x);
}
}
ix += size;
}
return(true);
}