org.apache.calcite.profile

Class SimpleProfiler.Space

java.lang.Object

org.apache.calcite.profile.SimpleProfiler.Space

All Implemented Interfaces:

Comparable<SimpleProfiler.Space>

Enclosing class:

SimpleProfiler

static class SimpleProfiler.Space
extends Object
implements Comparable<SimpleProfiler.Space>

Work space for a particular combination of columns.

Field Summary

Fields

Modifier and Type	Field and Description
(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) int	nullCount
(package private) boolean	unique
(package private) SortedSet<FlatLists.ComparableList<Comparable>>	values

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
double	cardinality() Number of distinct values.
int	compareTo(SimpleProfiler.Space o)
boolean	equals(Object o)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

columnOrdinals

final ImmutableBitSet columnOrdinals

columns

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

nullCount

int nullCount

values

final SortedSet<FlatLists.ComparableList<Comparable>> values

unique

boolean unique

dependencies

final BitSet dependencies

dependents

final Set<ImmutableBitSet> dependents

Constructor Detail

Space

Space(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

compareTo

public int compareTo(@Nonnull
                     SimpleProfiler.Space o)

Specified by:

compareTo in interface Comparable<SimpleProfiler.Space>

cardinality

public double cardinality()

Number of distinct values. Null is counted as a value, if present.