Package org.hibernate.query.sqm.tree.predicate

Interface SqmNegatablePredicate

All Superinterfaces:

Expression<Boolean>, JpaCriteriaNode, JpaExpression<Boolean>, JpaPredicate, JpaSelection<Boolean>, JpaTupleElement<Boolean>, Predicate, Selection<Boolean>, Serializable, SqmExpressibleAccessor<Boolean>, SqmExpression<Boolean>, SqmNode, SqmPredicate, SqmSelectableNode<Boolean>, SqmTypedNode<Boolean>, SqmVisitableNode, TupleElement<Boolean>

All Known Subinterfaces:

SqmInPredicate<T>

All Known Implementing Classes:

AbstractNegatableSqmPredicate, SqmBetweenPredicate, SqmBooleanExpressionPredicate, SqmComparisonPredicate, SqmEmptinessPredicate, SqmExistsPredicate, SqmInListPredicate, SqmInSubQueryPredicate, SqmLikePredicate, SqmMemberOfPredicate, SqmNegatedPredicate, SqmNullnessPredicate

public interface SqmNegatablePredicate
extends SqmPredicate

Contract for predicates that have a negated form, e.g. x is not null as opposed to not(x is null)

Nested Class Summary

Nested classes/interfaces inherited from interface jakarta.persistence.criteria.Predicate

Predicate.BooleanOperator

Field Summary

Fields inherited from interface org.hibernate.query.sqm.tree.SqmNode

log

Method Summary

Modifier and Type	Method	Description
boolean	isNegated()	Is this predicate (currently) negated?
void	negate()	Apply an external negation.

Methods inherited from interface org.hibernate.query.criteria.JpaSelection

alias, getCompoundSelectionItems, getSelectionItems

Methods inherited from interface org.hibernate.query.criteria.JpaTupleElement

getJavaType

Methods inherited from interface jakarta.persistence.criteria.Predicate

getExpressions, getOperator

Methods inherited from interface jakarta.persistence.criteria.Selection

isCompoundSelection

Methods inherited from interface org.hibernate.query.sqm.tree.expression.SqmExpression

applyInferableType, as, asBigDecimal, asBigInteger, asDouble, asFloat, asInteger, asLong, asString, castAs, getNodeType, in, in, in, in, isNotNull, isNull, visitSubSelectableNodes

Methods inherited from interface org.hibernate.query.sqm.tree.SqmNode

asLoggableText, nodeBuilder

Methods inherited from interface org.hibernate.query.sqm.tree.predicate.SqmPredicate

copy, getJavaTypeDescriptor, not

Methods inherited from interface org.hibernate.query.sqm.tree.SqmTypedNode

getExpressible, getNodeJavaType

Methods inherited from interface org.hibernate.query.sqm.tree.SqmVisitableNode

accept, appendHqlString, toHqlString

Methods inherited from interface jakarta.persistence.TupleElement

getAlias

Method Detail

isNegated

boolean isNegated()

Is this predicate (currently) negated?

Specified by:

isNegated in interface Predicate

Returns:

true if we have a negated form currently

negate

void negate()

Apply an external negation. Called when we encounter a NOT grouping.

For example, for not(x is null) we build the SqmNullnessPredicate and then call its negate method which results in x is not null.

Can be applied nested as well. For example, not(not(x is null)) becomes x is null because the double-negative cancel each other out.