mondrian.rolap.agg
Class DenseNativeSegmentDataset

java.lang.Object
  mondrian.rolap.agg.DenseSegmentDataset
      mondrian.rolap.agg.DenseNativeSegmentDataset

All Implemented Interfaces:

Iterable<Map.Entry<CellKey,Object>>, SegmentDataset

Direct Known Subclasses:

DenseDoubleSegmentDataset, DenseIntSegmentDataset

abstract class DenseNativeSegmentDataset
extends DenseSegmentDataset

Implementation of DenseSegmentDataset that stores values of type double.

Author:

jhyde

Field Summary

protected BitSet

nullIndicators

Fields inherited from class mondrian.rolap.agg.DenseSegmentDataset

axisMultipliers

Constructor Summary

DenseNativeSegmentDataset(SegmentAxis[] axes, BitSet nullIndicators)
Creates a DenseNativeSegmentDataset.

Method Summary

boolean	isNull(CellKey key) Returns whether the cell at a given coordinate is null.
protected boolean	isNull(int offset) Returns whether the value at the given offset is null.

Methods inherited from class mondrian.rolap.agg.DenseSegmentDataset

getBytes, getDouble, getInt, getObject, getObject, getOffset, getOffset, getSize, iterator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface mondrian.rolap.agg.SegmentDataset

createSegmentBody, exists, getType, populateFrom, populateFrom

Field Detail

nullIndicators

protected final BitSet nullIndicators

Constructor Detail

DenseNativeSegmentDataset

DenseNativeSegmentDataset(SegmentAxis[] axes,
                          BitSet nullIndicators)

Creates a DenseNativeSegmentDataset.

Parameters:

axes - Segment axes, containing actual column values

nullIndicators - Null indicators

Method Detail

isNull

public boolean isNull(CellKey key)

Description copied from interface: SegmentDataset

Returns whether the cell at a given coordinate is null.

Parameters:

key - Coordinate position

Returns:

Whether cell value is null

isNull

protected final boolean isNull(int offset)

Returns whether the value at the given offset is null.

The native value at this offset will also be 0. You only need to call this method if the getXxx method has returned 0.

Parameters:

offset - Cell offset

Returns:

Whether the cell at this offset is null