com.facebook.presto.spi

Class Domain

java.lang.Object

com.facebook.presto.spi.Domain

public final class Domain
extends Object

Defines the possible values of a single variable in terms of its valid scalar ranges and nullability. For example: Domain.none() => no scalar values allowed, NULL not allowed Domain.all() => all scalar values allowed, NULL allowed Domain.onlyNull() => no scalar values allowed, NULL allowed Domain.notNull() => all scalar values allowed, NULL not allowed

Constructor Summary

Constructors

Constructor and Description
Domain(SortedRangeSet ranges, boolean nullAllowed)

Method Summary

Methods

Modifier and Type	Method and Description
static Domain	all(Class<?> type)
Domain	complement()
boolean	contains(Domain other)
static Domain	create(SortedRangeSet ranges, boolean nullAllowed)
boolean	equals(Object obj)
Comparable<?>	getNullableSingleValue()
SortedRangeSet	getRanges() Returns a SortedRangeSet to represent the set of scalar values that are allowed in this Domain.
Comparable<?>	getSingleValue()
Class<?>	getType()
int	hashCode()
boolean	includesValue(Comparable<?> value)
Domain	intersect(Domain other)
boolean	isAll()
boolean	isNone()
boolean	isNullableSingleValue()
boolean	isNullAllowed()
boolean	isOnlyNull()
boolean	isSingleValue()
static Domain	none(Class<?> type)
static Domain	notNull(Class<?> type)
static Domain	onlyNull(Class<?> type)
boolean	overlaps(Domain other)
static Domain	singleValue(Comparable<?> value)
Domain	subtract(Domain other)
String	toString()
Domain	union(Domain other)
static Domain	union(List<Domain> domains)

Methods inherited from class java.lang.Object

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

Constructor Detail

Domain

public Domain(SortedRangeSet ranges,
      boolean nullAllowed)

Method Detail

create

public static Domain create(SortedRangeSet ranges,
            boolean nullAllowed)

none

public static Domain none(Class<?> type)

all

public static Domain all(Class<?> type)

onlyNull

public static Domain onlyNull(Class<?> type)

notNull

public static Domain notNull(Class<?> type)

singleValue

public static Domain singleValue(Comparable<?> value)

getType

public Class<?> getType()

getRanges

public SortedRangeSet getRanges()

Returns a SortedRangeSet to represent the set of scalar values that are allowed in this Domain. An empty (a.k.a. "none") SortedRangeSet indicates that no scalar values are allowed.

isNullAllowed

public boolean isNullAllowed()

isNone

public boolean isNone()

isAll

public boolean isAll()

isSingleValue

public boolean isSingleValue()

isNullableSingleValue

public boolean isNullableSingleValue()

isOnlyNull

public boolean isOnlyNull()

getSingleValue

public Comparable<?> getSingleValue()

getNullableSingleValue

public Comparable<?> getNullableSingleValue()

includesValue

public boolean includesValue(Comparable<?> value)

overlaps

public boolean overlaps(Domain other)

contains

public boolean contains(Domain other)

intersect

public Domain intersect(Domain other)

union

public Domain union(Domain other)

union

public static Domain union(List<Domain> domains)

complement

public Domain complement()

subtract

public Domain subtract(Domain other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object