Csv
(Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.
(Changed in version 2.9.0) transpose throws an IllegalArgumentException if collections are not uniformly sized.
Csv encapsulates a tabular data structure, as found in a CSV file or spreadsheet. This class is a thin wrapper around an Iterator[Row] and a header Row. It allows client code to:
This class may be useful for:
Csv is designed to be lazy. All materialisation of the datasource is done OUTSIDE of the Csv, i.e. as late as possible. Thus, there should be no appreciable time cost to constructing a Csv, merging Csvs, restructuring columns, and so forth. The time cost is only paid once, when the client code exports or otherwise materialises then Csv.
TODO - CAS - 12/08/2014 - Csv should be closeable - or returned iterator could close streams on next() == null TODO - CAS - 07/08/2014 - A Y-shaped pipeline (spits out two CSVs) TODO - CAS - 07/08/2014 - Aggregator 1 - combine multiple columns TODO - CAS - 07/08/2014 - Aggregator 2 - combine multiple rows - provide a predicate for row grouping/inclusion/exclusion