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

Fields

Modifier and Type	Field and Description
protected BitSet	nullValues

Fields inherited from class mondrian.rolap.agg.DenseSegmentDataset

axisMultipliers

Constructor Summary

Constructors

Constructor and Description
DenseNativeSegmentDataset(SegmentAxis[] axes, BitSet nullValues) Creates a DenseNativeSegmentDataset.

Method Summary

Methods

Modifier and Type	Method and Description
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

nullValues

protected final BitSet nullValues

Constructor Detail

DenseNativeSegmentDataset

DenseNativeSegmentDataset(SegmentAxis[] axes,
                         BitSet nullValues)

Creates a DenseNativeSegmentDataset.

Parameters:

axes - Segment axes, containing actual column values

nullValues - A bit-set indicating whether values are null. Each position in the bit-set corresponds to an offset in the value array. If position is null, the corresponding entry in the value array will also be 0.

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