A builder for creating
MapBackedDataset instances from
Identifiable sub-datasets. Example:
final MapBackedDataset, String> ds = new MapBackedDataset.IdentifiableBuilder, String>()
.add(new VFSListDataset(...))
.add(new VFSListDataset(...))
.build();
For small
MapBackedDatasets, the
MapBackedDataset.of()
methods are even more convenient.
Builder instances can be reused - it is safe to call build()
multiple times to build multiple maps in series. Each map is a superset
of the maps created before it.