程序包 org.hibernate.query.criteria.internal

接口 ExpressionImplementor<T>

所有超级接口:

javax.persistence.criteria.Expression<T>, Renderable, javax.persistence.criteria.Selection<T>, SelectionImplementor<T>, javax.persistence.TupleElement<T>, TupleElementImplementor<T>

所有已知子接口:

CollectionJoinImplementor<Z,X>, FromImplementor<Z,X>, JoinImplementor<Z,X>, ListJoinImplementor<Z,X>, MapJoinImplementor<Z,K,V>, PathImplementor<X>, SetJoinImplementor<Z,X>

所有已知实现类:

AbsFunction, AbstractFromImpl, AbstractJoinImpl, AbstractPathImpl, AbstractPredicateImpl, AbstractSimplePredicate, AggregationFunction, AggregationFunction.AVG, AggregationFunction.COUNT, AggregationFunction.GREATEST, AggregationFunction.LEAST, AggregationFunction.MAX, AggregationFunction.MIN, AggregationFunction.SUM, BasicFunctionExpression, BetweenPredicate, BinaryArithmeticOperation, BooleanAssertionPredicate, BooleanExpressionPredicate, BooleanStaticAssertionPredicate, CastFunction, CoalesceExpression, CollectionAttributeJoin, CollectionAttributeJoin.TreatedCollectionAttributeJoin, ComparisonPredicate, CompoundPredicate, ConcatExpression, CriteriaSubqueryImpl, CriteriaSubqueryImpl.SubquerySelection, CurrentDateFunction, CurrentTimeFunction, CurrentTimestampFunction, DelegatedExpressionImpl, EntityTypeExpression, ExistsPredicate, ExplicitTruthValueCheck, ExpressionImpl, InPredicate, IsEmptyPredicate, LengthFunction, LikePredicate, ListAttributeJoin, ListAttributeJoin.TreatedListAttributeJoin, ListIndexExpression, LiteralExpression, LocateFunction, LowerFunction, MapAttributeJoin, MapAttributeJoin.TreatedMapAttributeJoin, MapEntryExpression, MapKeyHelpers.MapKeyPath, MapKeyHelpers.MapKeySource, MemberOfPredicate, NegatedPredicateWrapper, NullifExpression, NullLiteralExpression, NullnessPredicate, ParameterExpressionImpl, ParameterizedFunctionExpression, PathTypeExpression, PluralAttributeJoinSupport, PluralAttributePath, RootImpl, RootImpl.TreatedRoot, SearchedCaseExpression, SetAttributeJoin, SetAttributeJoin.TreatedSetAttributeJoin, SimpleCaseExpression, SingularAttributeJoin, SingularAttributeJoin.TreatedSingularAttributeJoin, SingularAttributePath, SingularAttributePath.TreatedSingularAttributePath, SizeOfPluralAttributeExpression, SqrtFunction, SubqueryComparisonModifierExpression, SubstringFunction, TrimFunction, UnaryArithmeticOperation, UpperFunction

public interface ExpressionImplementor<T>
extends SelectionImplementor<T>, javax.persistence.criteria.Expression<T>, Renderable

Internal contract for implementations of the JPA Expression contract.

作者:

Steve Ebersole

方法概要

修饰符和类型	方法	说明
ExpressionImplementor<BigDecimal>	asBigDecimal()	See CriteriaBuilder.toBigDecimal(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<BigInteger>	asBigInteger()	See CriteriaBuilder.toBigInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<Double>	asDouble()	See CriteriaBuilder.toDouble(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<Float>	asFloat()	See CriteriaBuilder.toFloat(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<Integer>	asInteger()	See CriteriaBuilder.toInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<Long>	asLong()	See CriteriaBuilder.toLong(javax.persistence.criteria.Expression<? extends java.lang.Number>)
ExpressionImplementor<String>	asString()	See CriteriaBuilder.toString(javax.persistence.criteria.Expression<java.lang.Character>)

从接口继承的方法 javax.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

从接口继承的方法 org.hibernate.query.criteria.internal.Renderable

render

从接口继承的方法 javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

从接口继承的方法 org.hibernate.query.criteria.internal.SelectionImplementor

getValueHandlers

从接口继承的方法 javax.persistence.TupleElement

getAlias, getJavaType

从接口继承的方法 org.hibernate.query.criteria.internal.TupleElementImplementor

getValueHandler

方法详细资料

asLong

ExpressionImplementor<Long> asLong()

See CriteriaBuilder.toLong(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as a long

asInteger

ExpressionImplementor<Integer> asInteger()

See CriteriaBuilder.toInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as an integer

asFloat

ExpressionImplementor<Float> asFloat()

See CriteriaBuilder.toFloat(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as a float

asDouble

ExpressionImplementor<Double> asDouble()

See CriteriaBuilder.toDouble(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as a double

asBigDecimal

ExpressionImplementor<BigDecimal> asBigDecimal()

See CriteriaBuilder.toBigDecimal(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as a BigDecimal

asBigInteger

ExpressionImplementor<BigInteger> asBigInteger()

See CriteriaBuilder.toBigInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)

返回:

this but as a BigInteger

asString

ExpressionImplementor<String> asString()

See CriteriaBuilder.toString(javax.persistence.criteria.Expression<java.lang.Character>)

返回:

this but as a string