mondrian.rolap.agg
Class GroupingSetsList

java.lang.Object
  mondrian.rolap.agg.GroupingSetsList

final class GroupingSetsList
extends Object

Class for using GROUP BY GROUPING SETS sql query.

For example, suppose we have the 3 grouping sets (a, b, c), (a, b) and (b, c).

• detailed grouping set -> (a, b, c)
• rolled-up grouping sets -> (a, b), (b, c)
• rollup columns -> c, a (c for (a, b) and a for (b, c))
• rollup columns bitkey ->
  (a, b, c) grouping set represented as 0, 0, 0
  (a, b) grouping set represented as 0, 0, 1
  (b, c) grouping set represented as 1, 0, 0

Since:

24 May 2007

Author:

Thiyagu

Nested Class Summary

(package private) static class

GroupingSetsList.Cohort Collection of SegmentDataset that have the same dimensionality and identical axis values.

Constructor Summary

GroupingSetsList(List<GroupingSet> groupingSets)
Creates a GroupingSetsList.

Method Summary

int	findGroupingFunctionIndex(int columnIndex)
SegmentAxis[]	getDefaultAxes()
RolapStar.Column[]	getDefaultColumns()
protected GroupingSet	getDefaultGroupingSet()
BitKey	getDefaultLevelBitKey()
BitKey	getDefaultMeasureBitKey()
StarColumnPredicate[]	getDefaultPredicates()
List<Segment>	getDefaultSegments()
int	getGroupingBitKeyIndex()
(package private) List<RolapStar.Column[]>	getGroupingColumnsList(List<GroupingSet> groupingSets)
List<GroupingSet>	getGroupingSets()
List<RolapStar.Column[]>	getGroupingSetsColumns()
List<RolapStar.Column>	getRollupColumns()
List<BitKey>	getRollupColumnsBitKeyList()
List<GroupingSet>	getRollupGroupingSets()
RolapStar	getStar()
boolean	useGroupingSets()

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupingSetsList

public GroupingSetsList(List<GroupingSet> groupingSets)

Creates a GroupingSetsList.

First element of the groupingSets list should be the detailed grouping set (default grouping set), followed by grouping sets which can be rolled-up.

Parameters:

groupingSets - List of groups of columns

Method Detail

getGroupingColumnsList

List<RolapStar.Column[]> getGroupingColumnsList(List<GroupingSet> groupingSets)

getGroupingBitKeyIndex

public int getGroupingBitKeyIndex()

getRollupColumns

public List<RolapStar.Column> getRollupColumns()

getGroupingSetsColumns

public List<RolapStar.Column[]> getGroupingSetsColumns()

getRollupColumnsBitKeyList

public List<BitKey> getRollupColumnsBitKeyList()

useGroupingSets

public boolean useGroupingSets()

findGroupingFunctionIndex

public int findGroupingFunctionIndex(int columnIndex)

getDefaultAxes

public SegmentAxis[] getDefaultAxes()

getDefaultPredicates

public StarColumnPredicate[] getDefaultPredicates()

getDefaultGroupingSet

protected GroupingSet getDefaultGroupingSet()

getDefaultColumns

public RolapStar.Column[] getDefaultColumns()

getDefaultSegments

public List<Segment> getDefaultSegments()

getDefaultLevelBitKey

public BitKey getDefaultLevelBitKey()

getDefaultMeasureBitKey

public BitKey getDefaultMeasureBitKey()

getStar

public RolapStar getStar()

getGroupingSets

public List<GroupingSet> getGroupingSets()

getRollupGroupingSets

public List<GroupingSet> getRollupGroupingSets()