public static void WritePrimaryKeyValue(ColumnValue value, PlainBufferOutputStream output) { if (value.IsInfMin()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_INF_MIN); return; } if (value.IsInfMax()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_INF_MAX); return; } if (value.IsPlaceHolderForAutoIncr()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_AUTO_INCREMENT); return; } switch (value.Type) { case ColumnValueType.String: { byte[] rawData = value.AsStringInBytes(); int prefixLength = PlainBufferOutputStream.LITTLE_ENDIAN_32_SIZE + 1; // length + type + length output.WriteRawLittleEndian32(prefixLength + rawData.Length); // length + type + value output.WriteRawByte(PlainBufferConsts.VT_STRING); output.WriteRawLittleEndian32(rawData.Length); output.WriteBytes(rawData); break; } case ColumnValueType.Integer: { output.WriteRawLittleEndian32(1 + PlainBufferOutputStream.LITTLE_ENDIAN_64_SIZE); output.WriteRawByte(PlainBufferConsts.VT_INTEGER); output.WriteRawLittleEndian64(value.IntegerValue); break; } case ColumnValueType.Binary: { byte[] rawData = value.BinaryValue; int prefixLength = PlainBufferOutputStream.LITTLE_ENDIAN_32_SIZE + 1; // length + type + length output.WriteRawLittleEndian32(prefixLength + rawData.Length); // length + type + value output.WriteRawByte(PlainBufferConsts.VT_BLOB); output.WriteRawLittleEndian32(rawData.Length); output.WriteBytes(rawData); break; } default: throw new IOException("Bug: unsupported primary key type: " + value.GetType()); } }
public void WriteCellValue(ColumnValue value) { WriteTag(PlainBufferConsts.TAG_CELL_VALUE); if (value.IsInfMin()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_INF_MIN); return; } if (value.IsInfMax()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_INF_MAX); return; } if (value.IsPlaceHolderForAutoIncr()) { output.WriteRawLittleEndian32(1); output.WriteRawByte(PlainBufferConsts.VT_AUTO_INCREMENT); return; } byte[] rawData; int prefixLength; switch (value.Type) { case ColumnValueType.String: rawData = value.AsStringInBytes(); prefixLength = PlainBufferOutputStream.LITTLE_ENDIAN_32_SIZE + 1; // length + type + length output.WriteRawLittleEndian32(prefixLength + rawData.Length); // length + type + value output.WriteRawByte(PlainBufferConsts.VT_STRING); output.WriteRawLittleEndian32(rawData.Length); output.WriteBytes(rawData); break; case ColumnValueType.Integer: output.WriteRawLittleEndian32(1 + PlainBufferOutputStream.LITTLE_ENDIAN_64_SIZE); output.WriteRawByte(PlainBufferConsts.VT_INTEGER); output.WriteRawLittleEndian64(value.IntegerValue); break; case ColumnValueType.Binary: rawData = value.BinaryValue; prefixLength = PlainBufferOutputStream.LITTLE_ENDIAN_32_SIZE + 1; // length + type + length output.WriteRawLittleEndian32(prefixLength + rawData.Length); // length + type + value output.WriteRawByte(PlainBufferConsts.VT_BLOB); output.WriteRawLittleEndian32(rawData.Length); output.WriteBytes(rawData); break; case ColumnValueType.Boolean: output.WriteRawLittleEndian32(2); output.WriteRawByte(PlainBufferConsts.VT_BOOLEAN); output.WriteBool(value.BooleanValue); break; case ColumnValueType.Double: output.WriteRawLittleEndian32(1 + PlainBufferOutputStream.LITTLE_ENDIAN_64_SIZE); output.WriteRawByte(PlainBufferConsts.VT_DOUBLE); output.WriteDouble(value.DoubleValue); break; default: throw new IOException("Bug: unsupported column type: " + value.Type); } }