Package jakarta.persistence.criteria

Interface Expression<T>

Type Parameters:
T - the type of the expression
All Superinterfaces:
Selection<T>, TupleElement<T>
All Known Subinterfaces:
CollectionJoin<Z,E>, CriteriaBuilder.Case<R>, CriteriaBuilder.Coalesce<T>, CriteriaBuilder.In<T>, CriteriaBuilder.SimpleCase<C,R>, DiscriminatorSqmPath<T>, From<Z,X>, Join<Z,X>, JpaCoalesce<T>, JpaCollectionJoin<O,T>, JpaCrossJoin<T>, JpaDerivedFrom<T>, JpaDerivedJoin<T>, JpaDerivedRoot<T>, JpaEntityJoin<T>, JpaExpression<T>, JpaFrom<O,T>, JpaFunction<T>, JpaInPredicate<T>, JpaJoin<O,T>, JpaJoinedFrom<O,T>, JpaListJoin<O,T>, JpaMapJoin<O,K,V>, JpaParameterExpression<T>, JpaPath<T>, JpaPluralJoin<O,C,E>, JpaPredicate, JpaRoot<T>, JpaSearchedCase<T>, JpaSetJoin<O,T>, JpaSimpleCase<C,R>, JpaSubQuery<T>, ListJoin<Z,E>, MapJoin<Z,K,V>, ParameterExpression<T>, Path<X>, PluralJoin<Z,C,E>, Predicate, Root<X>, SetJoin<Z,E>, SqmAggregateFunction<T>, SqmAttributeJoin<O,T>, SqmCorrelation<O,T>, SqmExpression<T>, SqmFrom<O,T>, SqmInPredicate<T>, SqmJoin<O,T>, SqmNegatablePredicate, SqmOrderedSetAggregateFunction<T>, SqmParameter<T>, SqmPath<T>, SqmPathWrapper<W,T>, SqmPredicate, SqmQualifiedJoin<O,T>, SqmSimplePath<T>, SqmTreatedPath<T,S>, SqmWindowFunction<T>, Subquery<T>
All Known Implementing Classes:
AbstractNegatableSqmPredicate, AbstractSqmAttributeJoin, AbstractSqmExpression, AbstractSqmFrom, AbstractSqmJoin, AbstractSqmParameter, AbstractSqmPath, AbstractSqmPluralJoin, AbstractSqmPredicate, AbstractSqmQualifiedJoin, AbstractSqmSimplePath, AbstractSqmSpecificPluralPartPath, AnyDiscriminatorSqmPath, AsWrapperSqmExpression, EmbeddedDiscriminatorSqmPath, EntityDiscriminatorSqmPath, FormatFunction.FormatSqmFunction, FullyQualifiedReflectivePathTerminal, InverseDistributionFunction.SelfRenderingInverseDistributionFunction, JpaCriteriaParameter, NonAggregatedCompositeSimplePath, SelfRenderingSqmAggregateFunction, SelfRenderingSqmFunction, SelfRenderingSqmOrderedSetAggregateFunction, SelfRenderingSqmWindowFunction, SqmAliasedNodeRef, SqmAny, SqmAnyDiscriminatorValue, SqmAnyValuedSimplePath, SqmBagJoin, SqmBasicValuedSimplePath, SqmBetweenPredicate, SqmBinaryArithmetic, SqmBooleanExpressionPredicate, SqmByUnit, SqmCaseSearched, SqmCaseSimple, SqmCoalesce, SqmCollation, SqmCollectionSize, SqmComparisonPredicate, SqmCorrelatedBagJoin, SqmCorrelatedCrossJoin, SqmCorrelatedEntityJoin, SqmCorrelatedListJoin, SqmCorrelatedMapJoin, SqmCorrelatedPluralPartJoin, SqmCorrelatedRoot, SqmCorrelatedRootJoin, SqmCorrelatedSetJoin, SqmCorrelatedSingularJoin, SqmCrossJoin, SqmCteJoin, SqmCteRoot, SqmDerivedJoin, SqmDerivedRoot, SqmElementAggregateFunction, SqmEmbeddedValuedSimplePath, SqmEmptinessPredicate, SqmEntityJoin, SqmEntityValuedSimplePath, SqmEnumLiteral, SqmEvery, SqmExistsPredicate, SqmFieldLiteral, SqmFkExpression, SqmFormat, SqmFunction, SqmFunctionPath, SqmGroupedPredicate, SqmHqlNumericLiteral, SqmIndexAggregateFunction, SqmIndexedCollectionAccessPath, SqmInListPredicate, SqmInSubQueryPredicate, SqmJpaCompoundSelection, SqmJpaCriteriaParameterWrapper, SqmJunctionPredicate, SqmLikePredicate, SqmListJoin, SqmLiteral, SqmLiteralEmbeddableType, SqmLiteralEntityType, SqmLiteralNull, SqmMapEntryReference, SqmMapJoin, SqmMemberOfPredicate, SqmModifiedSubQueryExpression, SqmNamedParameter, SqmNegatedPredicate, SqmNullnessPredicate, SqmOver, SqmOverflow, SqmParameterizedEntityType, SqmPluralPartJoin, SqmPluralValuedSimplePath, SqmPositionalParameter, SqmRoot, SqmSelfRenderingExpression, SqmSetJoin, SqmSingularJoin, SqmStar, SqmSubQuery, SqmSummarization, SqmToDuration, SqmTreatedBagJoin, SqmTreatedCrossJoin, SqmTreatedEmbeddedValuedSimplePath, SqmTreatedEntityJoin, SqmTreatedEntityValuedSimplePath, SqmTreatedListJoin, SqmTreatedMapJoin, SqmTreatedPluralPartJoin, SqmTreatedRoot, SqmTreatedSetJoin, SqmTreatedSingularJoin, SqmTruthnessPredicate, SqmTuple, SqmUnaryOperation, ValueBindJpaCriteriaParameter
public interface Expression<T> extends Selection<T>
Type for query expressions.
Since:
2.0

  • Method Details

    • isNull

      Predicate isNull()
      Create a predicate to test whether the expression is null.
      Returns:
      predicate testing whether the expression is null

    • isNotNull

      Predicate isNotNull()
      Create a predicate to test whether the expression is not null.
      Returns:
      predicate testing whether the expression is not null

    • in

      Predicate in(Object... values)
      Create a predicate to test whether the expression is a member of the argument list.
      Parameters:
      values - values to be tested against
      Returns:
      predicate testing for membership

    • in

      Predicate in(Expression<?>... values)
      Create a predicate to test whether the expression is a member of the argument list.
      Parameters:
      values - expressions to be tested against
      Returns:
      predicate testing for membership

    • in

      Predicate in(Collection<?> values)
      Create a predicate to test whether the expression is a member of the collection.
      Parameters:
      values - collection of values to be tested against
      Returns:
      predicate testing for membership

    • in

      Predicate in(Expression<Collection<?>> values)
      Create a predicate to test whether the expression is a member of the collection.
      Parameters:
      values - expression corresponding to collection to be tested against
      Returns:
      predicate testing for membership

    • as

      <X> Expression<X> as(Class<X> type)
      Perform a typecast upon the expression, returning a new expression object. This method does not cause type conversion: the runtime type is not changed. Warning: may result in a runtime failure.
      Parameters:
      type - intended type of the expression
      Returns:
      new expression of the given type