internal RawRecord(ArrayDelimiter<byte> bytes)
{
// Status byte A
RawStatusByteA = bytes[0];
Version = (RawStatusByteA & 0x01) == 0x01; // First bit
Type = (RecordType)((RawStatusByteA & 0x0E) >> 1); // 2-4th bits
HasNullBitmap = (RawStatusByteA & 0x10) == 0x10; // Fifth bit
HasVariableLengthColumns = (RawStatusByteA & 0x20) == 0x20; // Sixth bit
HasVersioningInformation = (RawStatusByteA & 0x40) == 0x40; // Seventh bit
}
internal RawRecord(ArrayDelimiter <byte> bytes)
{
// Status byte A
RawStatusByteA = bytes[0];
Version = (RawStatusByteA & 0x01) == 0x01; // First bit
Type = (RecordType)((RawStatusByteA & 0x0E) >> 1); // 2-4th bits
HasNullBitmap = (RawStatusByteA & 0x10) == 0x10; // Fifth bit
HasVariableLengthColumns = (RawStatusByteA & 0x20) == 0x20; // Sixth bit
HasVersioningInformation = (RawStatusByteA & 0x40) == 0x40; // Seventh bit
}
public RawIndexRecord(ArrayDelimiter <byte> bytes, short pminlen, byte level) : base(bytes)
{
// Fixed length size
FixedLengthSize = (short)(pminlen - 1);
// Fixed length data
FixedLengthData = new ArrayDelimiter <byte>(bytes.SourceArray, bytes.Offset + 1, FixedLengthSize);
// Null bitmap column count
NullBitmapColumnCount = BitConverter.ToInt16(bytes.SourceArray, FixedLengthData.Offset + FixedLengthData.Count);
// Null bitmap
NullBitmapRawBytes = new ArrayDelimiter <byte>(bytes.SourceArray, FixedLengthData.Offset + FixedLengthData.Count + 2, (NullBitmapColumnCount + 7) / 8);
NullBitmap = new BitArray(NullBitmapRawBytes.ToArray());
// Variable length offset array
if (HasVariableLengthColumns)
{
int endOfNullBitmapPointer = 1 + FixedLengthData.Count + 2 + NullBitmapRawBytes.Count;
// Number of pointers
NumberOfVariableLengthOffsetArrayEntries = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer);
// Pointers
VariableLengthOffsetArray = new List <short>();
for (int i = 0; i < NumberOfVariableLengthOffsetArrayEntries; i++)
{
VariableLengthOffsetArray.Add(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer + 2 + i * 2));
}
// Values
int endOfVariableLengthOffsetArrayPointer = endOfNullBitmapPointer + 2 + NumberOfVariableLengthOffsetArrayEntries.Value * 2;
int previousPointer = endOfVariableLengthOffsetArrayPointer;
VariableLengthOffsetValues = new List <ArrayDelimiter <byte> >();
foreach (short entry in VariableLengthOffsetArray)
{
VariableLengthOffsetValues.Add(new ArrayDelimiter <byte>(bytes.SourceArray, bytes.Offset + previousPointer, entry - previousPointer));
previousPointer = entry;
}
}
// If we're at a non-leaf level, parse the page pointers
if (level > 0)
{
ChildPageID = BitConverter.ToInt32(bytes.SourceArray, bytes.Offset + 1 + FixedLengthData.Count - 6);
ChildFileID = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 1 + FixedLengthData.Count - 2);
}
}
public RawIndexRecord(ArrayDelimiter<byte> bytes, short pminlen, byte level)
: base(bytes)
{
// Fixed length size
FixedLengthSize = (short)(pminlen - 1);
// Fixed length data
FixedLengthData = new ArrayDelimiter<byte>(bytes.SourceArray, bytes.Offset + 1, FixedLengthSize);
// Null bitmap column count
NullBitmapColumnCount = BitConverter.ToInt16(bytes.SourceArray, FixedLengthData.Offset + FixedLengthData.Count);
// Null bitmap
NullBitmapRawBytes = new ArrayDelimiter<byte>(bytes.SourceArray, FixedLengthData.Offset + FixedLengthData.Count + 2, (NullBitmapColumnCount + 7) / 8);
NullBitmap = new BitArray(NullBitmapRawBytes.ToArray());
// Variable length offset array
if (HasVariableLengthColumns)
{
int endOfNullBitmapPointer = 1 + FixedLengthData.Count + 2 + NullBitmapRawBytes.Count;
// Number of pointers
NumberOfVariableLengthOffsetArrayEntries = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer);
// Pointers
VariableLengthOffsetArray = new List<short>();
for (int i = 0; i < NumberOfVariableLengthOffsetArrayEntries; i++)
VariableLengthOffsetArray.Add(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer + 2 + i * 2));
// Values
int endOfVariableLengthOffsetArrayPointer = endOfNullBitmapPointer + 2 + NumberOfVariableLengthOffsetArrayEntries.Value * 2;
int previousPointer = endOfVariableLengthOffsetArrayPointer;
VariableLengthOffsetValues = new List<ArrayDelimiter<byte>>();
foreach (short entry in VariableLengthOffsetArray)
{
VariableLengthOffsetValues.Add(new ArrayDelimiter<byte>(bytes.SourceArray, bytes.Offset + previousPointer, entry - previousPointer));
previousPointer = entry;
}
}
// If we're at a non-leaf level, parse the page pointers
if (level > 0)
{
ChildPageID = BitConverter.ToInt32(bytes.SourceArray, bytes.Offset + 1 + FixedLengthData.Count - 6);
ChildFileID = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 1 + FixedLengthData.Count - 2);
}
}
public RawPrimaryRecord(ArrayDelimiter <byte> bytes) : base(bytes)
{
// Status byte B
RawStatusByteB = bytes[1];
IsGhostForwardedRecord = (bytes[1] & 0x01) == 0x01; // First bit
// Fixed length size
FixedLengthSize = (short)(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 2) - 4);
// Fixed length data
FixedLengthData = new ArrayDelimiter <byte>(bytes.SourceArray, bytes.Offset + 4, FixedLengthSize);
// Null bitmap column count
NullBitmapColumnCount = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 4 + FixedLengthSize);
// Null bitmap
NullBitmapRawBytes = new ArrayDelimiter <byte>(bytes.SourceArray, bytes.Offset + 4 + FixedLengthSize + 2, (NullBitmapColumnCount + 7) / 8);
NullBitmap = new BitArray(NullBitmapRawBytes.ToArray());
// Variable length offset array
if (HasVariableLengthColumns)
{
int endOfNullBitmapPointer = 4 + FixedLengthSize + 2 + NullBitmapRawBytes.Count;
// Number of pointers
NumberOfVariableLengthOffsetArrayEntries = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer);
// Pointers
VariableLengthOffsetArray = new List <short>();
for (int i = 0; i < NumberOfVariableLengthOffsetArrayEntries; i++)
{
VariableLengthOffsetArray.Add(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer + 2 + i * 2));
}
// Values
int endOfVariableLengthOffsetArrayPointer = endOfNullBitmapPointer + 2 + NumberOfVariableLengthOffsetArrayEntries.Value * 2;
int previousPointer = endOfVariableLengthOffsetArrayPointer;
VariableLengthOffsetValues = new List <ArrayDelimiter <byte> >();
foreach (short entry in VariableLengthOffsetArray)
{
VariableLengthOffsetValues.Add(new ArrayDelimiter <byte>(bytes.SourceArray, bytes.Offset + previousPointer, entry - previousPointer));
previousPointer = entry;
}
}
}
public RawPrimaryRecord(ArrayDelimiter<byte> bytes)
: base(bytes)
{
// Status byte B
RawStatusByteB = bytes[1];
IsGhostForwardedRecord = (bytes[1] & 0x01) == 0x01; // First bit
// Fixed length size
FixedLengthSize = (short)(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 2) - 4);
// Fixed length data
FixedLengthData = new ArrayDelimiter<byte>(bytes.SourceArray, bytes.Offset + 4, FixedLengthSize);
// Null bitmap column count
NullBitmapColumnCount = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + 4 + FixedLengthSize);
// Null bitmap
NullBitmapRawBytes = new ArrayDelimiter<byte>(bytes.SourceArray, bytes.Offset + 4 + FixedLengthSize + 2, (NullBitmapColumnCount + 7) / 8);
NullBitmap = new BitArray(NullBitmapRawBytes.ToArray());
// Variable length offset array
if (HasVariableLengthColumns)
{
int endOfNullBitmapPointer = 4 + FixedLengthSize + 2 + NullBitmapRawBytes.Count;
// Number of pointers
NumberOfVariableLengthOffsetArrayEntries = BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer);
// Pointers
VariableLengthOffsetArray = new List<short>();
for (int i = 0; i < NumberOfVariableLengthOffsetArrayEntries; i++)
VariableLengthOffsetArray.Add(BitConverter.ToInt16(bytes.SourceArray, bytes.Offset + endOfNullBitmapPointer + 2 + i * 2));
// Values
int endOfVariableLengthOffsetArrayPointer = endOfNullBitmapPointer + 2 + NumberOfVariableLengthOffsetArrayEntries.Value * 2;
int previousPointer = endOfVariableLengthOffsetArrayPointer;
VariableLengthOffsetValues = new List<ArrayDelimiter<byte>>();
foreach (short entry in VariableLengthOffsetArray)
{
VariableLengthOffsetValues.Add(new ArrayDelimiter<byte>(bytes.SourceArray, bytes.Offset + previousPointer, entry - previousPointer));
previousPointer = entry;
}
}
}
public IniArrayDelimiter(ArrayDelimiter delimiter)
{
this.delimiter = delimiter;
}
