com.speedment.runtime.compute.expression.predicate

Interface IsNull<T,R>

All Superinterfaces:

NullPredicate<T,R>, Predicate<T>

All Known Subinterfaces:

FieldIsNullPredicate<ENTITY,T>

public interface IsNull<T,R>
extends NullPredicate<T,R>

Since:

3.1.2

Author:

Emil Forslund

Method Summary

Modifier and Type	Method and Description
IsNotNull<T,R>	negate()
default NullPredicateType	nullPredicateType() If this predicate represents a simple a == null or a != null predicate on the mapped value, then this method may choose to return a special value so that the predicate may be short-circuited.
default boolean	test(T in)

Methods inherited from interface com.speedment.runtime.compute.expression.predicate.NullPredicate

expression

Methods inherited from interface java.util.function.Predicate

and, isEqual, or

Method Detail

nullPredicateType

default NullPredicateType nullPredicateType()

Description copied from interface: NullPredicate

If this predicate represents a simple a == null or a != null predicate on the mapped value, then this method may choose to return a special value so that the predicate may be short-circuited. The method may always return NullPredicateType.OTHER, in which case no such optimization can be done.

Specified by:

nullPredicateType in interface NullPredicate<T,R>

Returns:

the type of predicate this represents

test

default boolean test(T in)

Specified by:

test in interface Predicate<T>

negate

IsNotNull<T,R> negate()

Specified by:

negate in interface Predicate<T>