Package io.trino.sql.planner.optimizations

Record Class Cardinality

java.lang.Object

java.lang.Record

io.trino.sql.planner.optimizations.Cardinality

public record Cardinality(com.google.common.collect.Range<Long> cardinalityRange)
extends Record

Constructor Summary

Constructors

Constructor	Description
Cardinality(com.google.common.collect.Range<Long> cardinalityRange)	Creates an instance of a Cardinality record class.

Method Summary

Modifier and Type	Method	Description
com.google.common.collect.Range<Long>	cardinalityRange()	Returns the value of the cardinalityRange record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
boolean	isAtLeast(long minCardinality)
boolean	isAtLeastScalar()
boolean	isAtMost(long maxCardinality)
boolean	isAtMostScalar()
boolean	isEmpty()
boolean	isScalar()
final String	toString()	Returns a string representation of this record class.

Methods inherited from class java.lang.Object

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

Constructor Details

Cardinality

public Cardinality(com.google.common.collect.Range<Long> cardinalityRange)

Creates an instance of a Cardinality record class.

Parameters:

cardinalityRange - the value for the cardinalityRange record component

Method Details

isEmpty

public boolean isEmpty()

isScalar

public boolean isScalar()

isAtLeastScalar

public boolean isAtLeastScalar()

isAtMostScalar

public boolean isAtMostScalar()

isAtLeast

public boolean isAtLeast(long minCardinality)

isAtMost

public boolean isAtMost(long maxCardinality)

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

cardinalityRange

public com.google.common.collect.Range<Long> cardinalityRange()

Returns the value of the cardinalityRange record component.

Returns:

the value of the cardinalityRange record component