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

Nested Classes

Modifier and Type	Class and Description
(package private) static class	GroupingSetsList.Cohort Collection of SegmentDataset that have the same dimensionality and identical axis values.

Constructor Summary

Constructors

Constructor and Description
GroupingSetsList(List<GroupingSet> groupingSets) Creates a GroupingSetsList.

Method Summary

Modifier and Type	Method and Description
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()