TableSlice extends Relation { public Table asTable() { Table table = Table.create(this.name()); for (Column<?> column : this.columns()) { table.addColumns(column); } return table; } TableSlice(Table table, Selection rowSelection);  TableSlice(Table table); @Override Column<?> column(int columnIndex); @Override Column<?> column(String columnName); @Override int columnCount(); @Override int rowCount(); @Override List<Column<?>> columns(); @Override int columnIndex(Column<?> column); @Override Object get(int r, int c); @Override String name(); Table getTable(); @Override void clear(); void removeSort(); void removeSelection(); @Override List<String> columnNames(); @Override TableSlice addColumns(Column<?>... column); @Override TableSlice removeColumns(Column<?>... columns); @Override Table first(int nRows); @Override TableSlice setName(String name); Table asTable(); double reduce(String numberColumnName, NumericAggregateFunction function); @Override Iterator<Row> iterator(); int mappedRowNumber(int rowNumber); void sortOn(Sort key);  }
@Test public void asTable() { TableSlice slice = new TableSlice(source, Selection.withRange(1, 11)); Table t = slice.asTable(); assertEquals(10, t.rowCount()); assertEquals(source.get(1, 1), t.get(0, 1)); }