private static IEnumerable<object> ReadRows(IFrameReader frameReader, IColumnSpec[] columnSpecs, IDataMapperFactory mapperFactory)
{
Stream stream = frameReader.ReadOnlyStream;
int rowCount = stream.ReadInt();
for (int rowIdx = 0; rowIdx < rowCount; ++rowIdx)
{
IInstanceBuilder instanceBuilder = mapperFactory.CreateBuilder();
foreach (ColumnSpec colSpec in columnSpecs)
{
byte[] rawData = stream.ReadByteArray();
object data = null != rawData
? colSpec.Deserialize(rawData)
: null;
instanceBuilder.Set(colSpec, data);
}
yield return instanceBuilder.Build();
}
}
