Package io.trino.sql.ir

Record Class NullIf

java.lang.Object
java.lang.Record
io.trino.sql.ir.NullIf
All Implemented Interfaces:
Expression
public record NullIf(Expression first, Expression second) extends Record implements Expression
NULLIF(V1,V2): CASE WHEN V1=V2 THEN NULL ELSE V1 END

  • Constructor Details

    • NullIf

      public NullIf(Expression first, Expression second)
      Creates an instance of a NullIf record class.
      Parameters:
      first - the value for the first record component
      second - the value for the second record component

  • Method Details

    • type

      public Type type()
      Specified by:
      type in interface Expression

    • accept

      public <R, C> R accept(IrVisitor<R,C> visitor, C context)
      Description copied from interface: Expression
      Accessible for IrVisitor, use IrVisitor.process(Expression, Object) instead.
      Specified by:
      accept in interface Expression

    • children

      public List<? extends Expression> children()
      Specified by:
      children in interface Expression

    • toString

      public 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.

    • first

      public Expression first()
      Returns the value of the first record component.
      Returns:
      the value of the first record component

    • second

      public Expression second()
      Returns the value of the second record component.
      Returns:
      the value of the second record component