org.apache.calcite.profile

Class ProfilerImpl.Space

java.lang.Object

org.apache.calcite.profile.ProfilerImpl.Space

Enclosing class:

ProfilerImpl

static class ProfilerImpl.Space
extends Object

Work space for a particular combination of columns.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	cardinality Number of distinct values.
(package private) ProfilerImpl.Collector	collector
(package private) ImmutableBitSet	columnOrdinals
(package private) com.google.common.collect.ImmutableSortedSet<Profiler.Column>	columns
(package private) BitSet	dependencies
(package private) Set<ImmutableBitSet>	dependents
(package private) double	expectedCardinality
(package private) int	nullCount Assigned by ProfilerImpl.Collector.finish().
private ProfilerImpl.Run	run
(package private) boolean	unique
(package private) SortedSet<Comparable>	valueSet Assigned by ProfilerImpl.Collector.finish().

Constructor Summary

Constructors

Constructor and Description
Space(ProfilerImpl.Run run, ImmutableBitSet columnOrdinals, Iterable<Profiler.Column> columns)

Method Summary

Modifier and Type	Method and Description
Profiler.Distribution	distribution() Returns the distribution created from this space, or null if no distribution has been registered yet.
boolean	equals(Object o)
int	hashCode()
(package private) double	surprise()

Methods inherited from class java.lang.Object

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

Field Detail

run

private final ProfilerImpl.Run run

columnOrdinals

final ImmutableBitSet columnOrdinals

columns

final com.google.common.collect.ImmutableSortedSet<Profiler.Column> columns

unique

boolean unique

dependencies

final BitSet dependencies

dependents

final Set<ImmutableBitSet> dependents

expectedCardinality

double expectedCardinality

collector

ProfilerImpl.Collector collector

nullCount

int nullCount

Assigned by ProfilerImpl.Collector.finish().

cardinality

int cardinality

Number of distinct values. Null is counted as a value, if present. Assigned by ProfilerImpl.Collector.finish().

valueSet

SortedSet<Comparable> valueSet

Assigned by ProfilerImpl.Collector.finish().

Constructor Detail

Space

Space(ProfilerImpl.Run run,
      ImmutableBitSet columnOrdinals,
      Iterable<Profiler.Column> columns)

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

distribution

public Profiler.Distribution distribution()

Returns the distribution created from this space, or null if no distribution has been registered yet.

surprise

double surprise()