public SequentialDataTransform(IHost host, SequentialTransformerBase <TInput, TOutput, TState> parent,
IDataView input, IStatefulRowMapper mapper)
: base(parent.Host, input)
{
Metadata = new MetadataDispatcher(1);
_parent = parent;
_transform = CreateLambdaTransform(_parent.Host, input, _parent.InputColumnName,
_parent.OutputColumnName, InitFunction, _parent.WindowSize > 0, _parent.OutputColumnType);
_mapper = mapper;
_bindings = new ColumnBindings(input.Schema, _mapper.GetOutputColumns());
}
private Bindings(OptionalColumnTransform parent, ColumnType[] columnTypes, int[] srcCols,
int[] srcColsWithOptionalColumn, Schema input, Schema inputWithOptionalColumn, bool user, string[] names)
: base(input, user, names)
{
Contracts.AssertValue(parent);
Contracts.Assert(Utils.Size(columnTypes) == InfoCount);
Contracts.Assert(Utils.Size(srcCols) == InfoCount);
Contracts.AssertValue(inputWithOptionalColumn);
ColumnTypes = columnTypes;
SrcCols = srcCols;
_parent = parent;
_metadata = new MetadataDispatcher(InfoCount);
_inputWithOptionalColumn = inputWithOptionalColumn;
_srcColsWithOptionalColumn = srcColsWithOptionalColumn;
SetMetadata();
}
