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 Summary

Constructors

Constructor	Description
NullIf(Expression first, Expression second)	Creates an instance of a NullIf record class.

Method Summary

Modifier and Type	Method	Description
<R, C> R	accept(IrVisitor<R,C> visitor, C context)	Accessible for IrVisitor, use IrVisitor.process(Expression, Object) instead.
List<? extends Expression>	children()
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
Expression	first()	Returns the value of the first record component.
final int	hashCode()	Returns a hash code value for this object.
Expression	second()	Returns the value of the second record component.
String	toString()	Returns a string representation of this record class.
Type	type()

Methods inherited from class java.lang.Object

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

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