Class NaturallyJoinedTable

  • All Implemented Interfaces:
    TableDataSource

    public final class NaturallyJoinedTable
    extends JoinedTable
    A table that is the cartesian product of two tables. This provides better memory-use and efficiency than a materialized table backed by a VirtualTable.
    Author:
    Tobias Downer
    • Constructor Detail

      • NaturallyJoinedTable

        public NaturallyJoinedTable​(Table left,
                                    Table right)
        Constructs the table.
    • Method Detail

      • resolveRowForTableAt

        protected int resolveRowForTableAt​(int row_number,
                                           int table_num)
        Description copied from class: JoinedTable
        Given a row and a table index (to a parent reference table), this will return the row index in the given parent table for the given row.
        Specified by:
        resolveRowForTableAt in class JoinedTable
      • resolveAllRowsForTableAt

        protected void resolveAllRowsForTableAt​(IntegerVector row_set,
                                                int table_num)
        Description copied from class: JoinedTable
        Given an IntegerVector that represents a list of pointers to rows in this table, this resolves the rows to row indexes in the given parent table. This method changes the 'row_set' IntegerVector object.
        Specified by:
        resolveAllRowsForTableAt in class JoinedTable