javax.persistence

Interface TupleElement<X>

Type Parameters:

X - the type of the element

All Known Subinterfaces:

BinaryOperatorExpression<T>, CollectionJoin<Z,E>, CollectionJoinImplementor<Z,X>, CompoundSelection<X>, CriteriaBuilder.Case<R>, CriteriaBuilder.Coalesce<T>, CriteriaBuilder.In<T>, CriteriaBuilder.SimpleCase<C,R>, Expression<T>, ExpressionImplementor<T>, From<Z,X>, FromImplementor<Z,X>, FunctionExpression<T>, Join<Z,X>, JoinImplementor<Z,X>, ListJoin<Z,E>, ListJoinImplementor<Z,X>, MapJoin<Z,K,V>, MapJoinImplementor<Z,K,V>, ParameterExpression<T>, Path<X>, PathImplementor<X>, PathSource<X>, PluralJoin<Z,C,E>, Predicate, Root<X>, Selection<X>, SelectionImplementor<X>, SetJoin<Z,E>, SetJoinImplementor<Z,X>, Subquery<T>, TupleElementImplementor<X>, UnaryOperatorExpression<T>

All Known Implementing Classes:

AbsFunction, AbstractEntityManagerImpl.TupleBuilderTransformer.HqlTupleElementImpl, AbstractFromImpl, AbstractJoinImpl, AbstractPathImpl, AbstractPredicateImpl, AbstractSimplePredicate, AbstractTupleElement, AggregationFunction, AggregationFunction.AVG, AggregationFunction.COUNT, AggregationFunction.GREATEST, AggregationFunction.LEAST, AggregationFunction.MAX, AggregationFunction.MIN, AggregationFunction.SUM, BasicFunctionExpression, BetweenPredicate, BinaryArithmeticOperation, BooleanAssertionPredicate, BooleanExpressionPredicate, BooleanStaticAssertionPredicate, CastFunction, CoalesceExpression, CollectionAttributeJoin, ComparisonPredicate, CompoundPredicate, CompoundSelectionImpl, ConcatExpression, CriteriaSubqueryImpl, CurrentDateFunction, CurrentTimeFunction, CurrentTimestampFunction, EntityTypeExpression, ExistsPredicate, ExplicitTruthValueCheck, ExpressionImpl, InPredicate, IsEmptyPredicate, LengthFunction, LikePredicate, ListAttributeJoin, ListIndexExpression, LiteralExpression, LocateFunction, LowerFunction, MapAttributeJoin, MapEntryExpression, MapKeyHelpers.MapKeyPath, MapKeyHelpers.MapKeySource, MemberOfPredicate, NullifExpression, NullLiteralExpression, NullnessPredicate, ParameterExpressionImpl, ParameterizedFunctionExpression, PathTypeExpression, PluralAttributeJoinSupport, PluralAttributePath, RootImpl, SearchedCaseExpression, SelectionImpl, SetAttributeJoin, SimpleCaseExpression, SingularAttributeJoin, SingularAttributePath, SizeOfCollectionExpression, SqrtFunction, SubqueryComparisonModifierExpression, SubstringFunction, TrimFunction, UnaryArithmeticOperation, UpperFunction

public interface TupleElement<X>

The TupleElement interface defines an element that is returned in a query result tuple.

Since:

Java Persistence 2.0

See Also:

Tuple

Method Summary

Methods

Modifier and Type	Method and Description
String	getAlias() Return the alias assigned to the tuple element or null, if no alias has been assigned.
Class<? extends X>	getJavaType() Return the Java type of the tuple element.

Method Detail

getJavaType

Class<? extends X> getJavaType()

Return the Java type of the tuple element.

Returns:

the Java type of the tuple element

getAlias

String getAlias()

Return the alias assigned to the tuple element or null, if no alias has been assigned.

Returns:

alias