mondrian.rolap.agg
Class Segment.Region

java.lang.Object
  mondrian.rolap.agg.Segment.Region

Enclosing class:

Segment

static class Segment.Region
extends Object

Definition of a region of values which are not in a segment.

A region is defined by a set of constraints, one for each column in the segment. A constraint may be LiteralStarPredicate(true), meaning that the column is unconstrained.

For example,

 segment (State={CA, OR, WA}, Gender=*)
 actual values {1997, 1998} * {CA, OR, WA} * {M, F} = 12 cells
 excluded region (Year=*, State={CA, OR}, Gender={F})
 excluded values {1997, 1998} * {CA, OR} * {F} = 4 cells

 Values:

     F     M
 CA  out   in
 OR  out   in
 WA  in    in
 

Note that the resulting segment is not a hypercube: it has a 'hole'. This is why regions are required.

Constructor Summary

Segment.Region(List<StarColumnPredicate> predicateList, List<StarPredicate> multiColumnPredicateList, int cellCount)

Method Summary

void	describe(StringBuilder buf) Describes this Segment.
boolean	equals(Object obj)
int	getCellCount()
List<StarPredicate>	getMultiColumnPredicates()
List<StarColumnPredicate>	getPredicates()
int	hashCode()
boolean	wouldContain(Object[] keys)

Methods inherited from class java.lang.Object

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

Constructor Detail

Segment.Region

Segment.Region(List<StarColumnPredicate> predicateList,
               List<StarPredicate> multiColumnPredicateList,
               int cellCount)

Method Detail

getPredicates

public List<StarColumnPredicate> getPredicates()

getMultiColumnPredicates

public List<StarPredicate> getMultiColumnPredicates()

getCellCount

public int getCellCount()

wouldContain

public boolean wouldContain(Object[] keys)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

describe

public void describe(StringBuilder buf)

Describes this Segment.

Parameters:

buf - Buffer to write to.