Package mondrian.rolap.agg

Class SegmentAxis

java.lang.Object

mondrian.rolap.agg.SegmentAxis

public class SegmentAxis
extends Object

Collection of values of one of the columns that parameterizes a Segment.

Constructor Summary

Constructors

Constructor	Description
SegmentAxis(StarColumnPredicate predicate, SortedSet<Comparable> keySet, boolean hasNull)	Creates a SegmentAxis populated with a set of key values.

Method Summary

Modifier and Type	Method	Description
int	getMatchCount(StarColumnPredicate predicate)	Returns how many of this SegmentAxis's keys match a given constraint.
Pair<SortedSet<Comparable>,Boolean>	getValuesAndIndicator()
boolean	wouldContain(Object key)	Returns whether this axis contains a given key, or would contain it if it existed.

Methods inherited from class java.lang.Object

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

Constructor Detail

SegmentAxis

public SegmentAxis(StarColumnPredicate predicate,
                   SortedSet<Comparable> keySet,
                   boolean hasNull)

Creates a SegmentAxis populated with a set of key values.

Parameters:

predicate - Predicate defining which keys should appear on axis. (If a key passes the predicate but is not in the list, every cell with that key is assumed to have a null value.)

keySet - Set of distinct key values, sorted

hasNull - Whether the axis contains the null value, in addition to the values in valueSet

Method Detail

wouldContain

public final boolean wouldContain(Object key)

Returns whether this axis contains a given key, or would contain it if it existed.

For example, if this axis is unconstrained, then this method returns true for any value.

Parameters:

key - Key

Returns:

Whether this axis would contain key

getMatchCount

public int getMatchCount(StarColumnPredicate predicate)

Returns how many of this SegmentAxis's keys match a given constraint.

Parameters:

predicate - Predicate

Returns:

How many keys match constraint

getValuesAndIndicator

public Pair<SortedSet<Comparable>,Boolean> getValuesAndIndicator()