Package mondrian.rolap.agg

Class DenseDoubleSegmentBody

java.lang.Object

mondrian.rolap.agg.AbstractSegmentBody

mondrian.rolap.agg.DenseDoubleSegmentBody

All Implemented Interfaces:

Serializable, SegmentBody

class DenseDoubleSegmentBody
extends AbstractSegmentBody

Implementation of a segment body which stores the data inside a dense primitive array of double precision numbers.

Author:

LBoudreau

Field Summary

Fields inherited from class mondrian.rolap.agg.AbstractSegmentBody

axisValueSets

Constructor Summary

Constructors

Constructor	Description
DenseDoubleSegmentBody(BitSet nullValues, double[] values, List<Pair<SortedSet<Comparable>,Boolean>> axes)	Creates a DenseDoubleSegmentBody.

Method Summary

Modifier and Type	Method	Description
protected int	getEffectiveSize()	Returns the amount of non-null elements.
BitSet	getNullValueIndicators()	Returns a bit-set indicating whether values are null.
protected Object	getObject(int i)
protected int	getSize()	Returns the overall amount of stored elements, including those, that are considered to be null.
Object	getValueArray()	Returns an array of values.
String	toString()

Methods inherited from class mondrian.rolap.agg.AbstractSegmentBody

getAxisValueSets, getNullAxisFlags, getValueMap

Methods inherited from class java.lang.Object

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

Constructor Detail

DenseDoubleSegmentBody

DenseDoubleSegmentBody(BitSet nullValues,
                       double[] values,
                       List<Pair<SortedSet<Comparable>,Boolean>> axes)

Creates a DenseDoubleSegmentBody.

Stores the given array of cell values and null indicators; caller must not modify them afterwards.

Parameters:

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.

values - Cell values

axes - Axes

Method Detail

getValueArray

public Object getValueArray()

Description copied from interface: SegmentBody

Returns an array of values.

Use only for dense segments.

Specified by:

getValueArray in interface SegmentBody

Overrides:

getValueArray in class AbstractSegmentBody

Returns:

An array of values

getNullValueIndicators

public BitSet getNullValueIndicators()

Description copied from interface: SegmentBody

Returns a bit-set indicating whether values are null. The ordinals in the bit-set correspond to the indexes in the array returned from SegmentBody.getValueArray().

Use only for dense segments of native values.

Specified by:

getNullValueIndicators in interface SegmentBody

Overrides:

getNullValueIndicators in class AbstractSegmentBody

Returns:

Indicators

getSize

protected int getSize()

Description copied from class: AbstractSegmentBody

Returns the overall amount of stored elements, including those, that are considered to be null.

Specified by:

getSize in class AbstractSegmentBody

Returns:

the size of stored data

getEffectiveSize

protected int getEffectiveSize()

Description copied from class: AbstractSegmentBody

Returns the amount of non-null elements. This amount is equal to number of elements that getValueMap().entrySet().iterator() is returned. By default the method executes getSize().

Overrides:

getEffectiveSize in class AbstractSegmentBody

Returns:

the effective size of stored data

getObject

protected Object getObject(int i)

Specified by:

getObject in class AbstractSegmentBody

toString

public String toString()

Overrides:

toString in class Object