com.facebook.presto.common.predicate

Class Domain

java.lang.Object

com.facebook.presto.common.predicate.Domain

public final class Domain
extends Object

Defines the possible values of a single variable in terms of its valid scalar values 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

Method Summary

Modifier and Type	Method and Description
static Domain	all(Type type)
Domain	complement()
boolean	contains(Domain other)
static Domain	create(ValueSet values, boolean nullAllowed)
boolean	equals(Object obj)
Object	getNullableSingleValue()
Object	getSingleValue()
Type	getType()
ValueSet	getValues()
int	hashCode()
boolean	includesNullableValue(Object value)
Domain	intersect(Domain other)
boolean	isAll()
boolean	isNone()
boolean	isNullableSingleValue()
boolean	isNullAllowed()
boolean	isOnlyNull()
boolean	isSingleValue()
static Domain	multipleValues(Type type, List<?> values)
static Domain	none(Type type)
static Domain	notNull(Type type)
static Domain	onlyNull(Type type)
boolean	overlaps(Domain other)
Domain	simplify() Reduces the number of discrete components in the Domain if there are too many.
static Domain	singleValue(Type type, Object value)
Domain	subtract(Domain other)
String	toString(SqlFunctionProperties properties)
Domain	union(Domain other)
static Domain	union(List<Domain> domains)

Methods inherited from class java.lang.Object

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

Method Detail

create

public static Domain create(ValueSet values,
                            boolean nullAllowed)

none

public static Domain none(Type type)

all

public static Domain all(Type type)

onlyNull

public static Domain onlyNull(Type type)

notNull

public static Domain notNull(Type type)

singleValue

public static Domain singleValue(Type type,
                                 Object value)

multipleValues

public static Domain multipleValues(Type type,
                                    List<?> values)

getType

public Type getType()

getValues

public ValueSet getValues()

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 Object getSingleValue()

getNullableSingleValue

public Object getNullableSingleValue()

includesNullableValue

public boolean includesNullableValue(Object 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

simplify

public Domain simplify()

Reduces the number of discrete components in the Domain if there are too many.

toString

public String toString(SqlFunctionProperties properties)