Package mondrian.rolap.agg

Class AbstractSegmentBody

java.lang.Object

mondrian.rolap.agg.AbstractSegmentBody

All Implemented Interfaces:

Serializable, SegmentBody

Direct Known Subclasses:

DenseDoubleSegmentBody, DenseIntSegmentBody, DenseObjectSegmentBody, SparseSegmentBody

abstract class AbstractSegmentBody
extends Object
implements SegmentBody

Abstract implementation of a SegmentBody.

Author:

LBoudreau

Field Summary

Fields

Modifier and Type	Field	Description
protected SortedSet<Comparable>[]	axisValueSets

Constructor Summary

Constructors

Constructor	Description
AbstractSegmentBody(List<Pair<SortedSet<Comparable>,Boolean>> axes)

Method Summary

Modifier and Type	Method	Description
SortedSet<Comparable>[]	getAxisValueSets()	Returns the cached axis value sets to be used as an initializer for the segment's axis.
protected int	getEffectiveSize()	Returns the amount of non-null elements.
boolean[]	getNullAxisFlags()	Returns an array of boolean values which identify which axis of the cached segment contained null values.
BitSet	getNullValueIndicators()	Returns a bit-set indicating whether values are null.
protected abstract Object	getObject(int i)
protected abstract int	getSize()	Returns the overall amount of stored elements, including those, that are considered to be null.
Object	getValueArray()	Returns an array of values.
Map<CellKey,Object>	getValueMap()	Converts contents of this segment into a cellkey/value map.

Methods inherited from class java.lang.Object

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

Field Detail

axisValueSets

protected final SortedSet<Comparable>[] axisValueSets

Constructor Detail

AbstractSegmentBody

public AbstractSegmentBody(List<Pair<SortedSet<Comparable>,Boolean>> axes)

Method Detail

getAxisValueSets

public SortedSet<Comparable>[] getAxisValueSets()

Description copied from interface: SegmentBody

Returns the cached axis value sets to be used as an initializer for the segment's axis.

Specified by:

getAxisValueSets in interface SegmentBody

Returns:

An array of SortedSets which was cached previously.

getNullAxisFlags

public boolean[] getNullAxisFlags()

Description copied from interface: SegmentBody

Returns an array of boolean values which identify which axis of the cached segment contained null values.

Specified by:

getNullAxisFlags in interface SegmentBody

Returns:

An array of boolean values.

getValueMap

public Map<CellKey,Object> getValueMap()

Description copied from interface: SegmentBody

Converts contents of this segment into a cellkey/value map. Use only for sparse segments.

Specified by:

getValueMap in interface SegmentBody

Returns:

Map containing cell values keyed by their coordinates

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

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

Returns:

Indicators

getSize

protected abstract int getSize()

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

Returns:

the size of stored data

getEffectiveSize

protected int getEffectiveSize()

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().

Returns:

the effective size of stored data

getObject

protected abstract Object getObject(int i)