org.apache.paimon.predicate

Class IsNull

java.lang.Object

org.apache.paimon.predicate.LeafFunction

org.apache.paimon.predicate.LeafUnaryFunction

org.apache.paimon.predicate.IsNull

All Implemented Interfaces:

Serializable

public class IsNull
extends LeafUnaryFunction

A NullFalseLeafBinaryFunction to eval is null.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static IsNull	INSTANCE

Method Summary

Modifier and Type	Method and Description
Optional<LeafFunction>	negate()
boolean	test(DataType type, long rowCount, Object min, Object max, Long nullCount)
boolean	test(DataType type, Object field)
<T> T	visit(FunctionVisitor<T> visitor, FieldRef fieldRef, List<Object> literals)

Methods inherited from class org.apache.paimon.predicate.LeafUnaryFunction

test, test

Methods inherited from class org.apache.paimon.predicate.LeafFunction

equals, hashCode, toString

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final IsNull INSTANCE

Method Detail

test

public boolean test(DataType type,
                    Object field)

Specified by:

test in class LeafUnaryFunction

test

public boolean test(DataType type,
                    long rowCount,
                    Object min,
                    Object max,
                    Long nullCount)

Specified by:

test in class LeafUnaryFunction

negate

public Optional<LeafFunction> negate()

Specified by:

negate in class LeafFunction

visit

public <T> T visit(FunctionVisitor<T> visitor,
                   FieldRef fieldRef,
                   List<Object> literals)

Specified by:

visit in class LeafFunction