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