Package com.illumon.iris.db.v2

Interface ColumnSourceManager

All Known Implementing Classes:
RegionedColumnSourceManager
public interface ColumnSourceManager
Manager for ColumnSources in a Table.

  • Method Details

    • getColumnSources

      Map<String,​? extends ColumnSource<?>> getColumnSources()
      Get a map of name to ColumnSource for the column sources maintained by this manager.
      Returns:
      An unmodifiable view of the column source map maintained by this manager.

    • disableGrouping

      void disableGrouping()
      Turn off column grouping, and clear the groupings on all GROUPING column sources. Note that this does *not* affect PARTITIONING columns.

    • addLocation

      void addLocation​(@NotNull TableLocation tableLocation)
      Add a table location to the list to be checked in refresh().
      Parameters:
      tableLocation - The table location to be added

    • refresh

      Index refresh()
      Observe size changes in the previously added table locations, and update the managed column sources accordingly.
      Returns:
      The index of added keys

    • allLocations

      Collection<TableLocation> allLocations()
      Get the added locations, first the ones that have been "included" (found to exist with non-zero size) in order of inclusion, then the remainder in order of discovery.
      Returns:
      All known locations, ordered as described

    • includedLocations

      Collection<TableLocation> includedLocations()
      Get the added locations that have been found to exist and have non-zero size.
      Returns:
      The added locations that have been found to exist and have non-zero size

    • isEmpty

      boolean isEmpty()
      Report whether this ColumnSourceManager has no locations that have been "included" (i.e. found to exist with non-zero size).
      Returns:
      True if there are no included locations

    • getDataIndexProvider

      @Nullable DataIndexProvider getDataIndexProvider()
      Get the DataIndexProvider to retrieve Data Indexes for this table.
      Returns:
      the data index provider, or null if none has been created.