ExpressionImpl (Hibernate JavaDocs)

java.lang.Object
- org.hibernate.jpa.criteria.AbstractNode
- - org.hibernate.jpa.criteria.expression.AbstractTupleElement<X>
  - - org.hibernate.jpa.criteria.expression.SelectionImpl<T>
    - - org.hibernate.jpa.criteria.expression.ExpressionImpl<T>

All Implemented Interfaces:

Serializable, Expression<T>, Selection<T>, TupleElement<T>, ExpressionImplementor<T>, ParameterContainer, Renderable, SelectionImplementor<T>, TupleElementImplementor<T>

Direct Known Subclasses:

AbstractPathImpl, AbstractPredicateImpl, BasicFunctionExpression, BinaryArithmeticOperation, CoalesceExpression, ConcatExpression, CriteriaSubqueryImpl, DelegatedExpressionImpl, EntityTypeExpression, ListIndexExpression, LiteralExpression, MapEntryExpression, NegatedPredicateWrapper, NullifExpression, NullLiteralExpression, ParameterExpressionImpl, PathTypeExpression, SearchedCaseExpression, SimpleCaseExpression, SizeOfCollectionExpression, SubqueryComparisonModifierExpression, UnaryArithmeticOperation
```
public abstract class ExpressionImpl<T>
extends SelectionImpl<T>
implements ExpressionImplementor<T>, Serializable
```
Models an expression in the criteria query language.

See Also:
Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface org.hibernate.jpa.criteria.ParameterContainer
  ParameterContainer.Helper

Constructor Summary

Constructors
Constructor and Description

ExpressionImpl(CriteriaBuilderImpl criteriaBuilder, Class<T> javaType)

Constructors
Constructor and Description
`ExpressionImpl(CriteriaBuilderImpl criteriaBuilder, Class<T> javaType)`

Method Summary

Methods
Modifier and Type	Method and Description
`<X> Expression<X>`	`as(Class<X> type)`
`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>)`
`Predicate`	`in(Collection<?> values)`
`Predicate`	`in(Expression<?>... values)`
`Predicate`	`in(Expression<Collection<?>> values)`
`Predicate`	`in(Object... values)`
`Predicate`	`isNotNull()`
`Predicate`	`isNull()`

Methods inherited from class org.hibernate.jpa.criteria.expression.SelectionImpl
alias, getCompoundSelectionItems, getValueHandlers, isCompoundSelection

Methods inherited from class org.hibernate.jpa.criteria.expression.AbstractTupleElement
forceConversion, getAlias, getJavaType, getValueHandler, resetJavaType, setAlias

Methods inherited from class org.hibernate.jpa.criteria.AbstractNode
criteriaBuilder

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.hibernate.jpa.criteria.SelectionImplementor
getValueHandlers

Methods inherited from interface org.hibernate.jpa.criteria.TupleElementImplementor
getValueHandler

Methods inherited from interface javax.persistence.criteria.Selection
alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement
getAlias, getJavaType

Methods inherited from interface org.hibernate.jpa.criteria.Renderable
render, renderProjection

Methods inherited from interface org.hibernate.jpa.criteria.ParameterContainer
registerParameters

- Constructor Detail
  - ExpressionImpl
```
public ExpressionImpl(CriteriaBuilderImpl criteriaBuilder,
              Class<T> javaType)
```
- Method Detail
  - as
```
public <X> Expression<X> as(Class<X> type)
```
    Specified by:
    
    as in interface Expression<T>
  - isNull
```
public Predicate isNull()
```
    Specified by:
    
    isNull in interface Expression<T>
  - isNotNull
```
public Predicate isNotNull()
```
    Specified by:
    
    isNotNull in interface Expression<T>
  - in
```
public Predicate in(Object... values)
```
    Specified by:
    
    in in interface Expression<T>
  - in
```
public Predicate in(Expression<?>... values)
```
    Specified by:
    
    in in interface Expression<T>
  - in
```
public Predicate in(Collection<?> values)
```
    Specified by:
    
    in in interface Expression<T>
  - in
```
public Predicate in(Expression<Collection<?>> values)
```
    Specified by:
    
    in in interface Expression<T>
  - asLong
```
public ExpressionImplementor<Long> asLong()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toLong(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asLong in interface ExpressionImplementor<T>
    
    Returns:
    this but as a long
  - asInteger
```
public ExpressionImplementor<Integer> asInteger()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asInteger in interface ExpressionImplementor<T>
    
    Returns:
    this but as an integer
  - asFloat
```
public ExpressionImplementor<Float> asFloat()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toFloat(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asFloat in interface ExpressionImplementor<T>
    
    Returns:
    this but as a float
  - asDouble
```
public ExpressionImplementor<Double> asDouble()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toDouble(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asDouble in interface ExpressionImplementor<T>
    
    Returns:
    this but as a double
  - asBigDecimal
```
public ExpressionImplementor<BigDecimal> asBigDecimal()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toBigDecimal(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asBigDecimal in interface ExpressionImplementor<T>
    
    Returns:
    this but as a BigDecimal
  - asBigInteger
```
public ExpressionImplementor<BigInteger> asBigInteger()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toBigInteger(javax.persistence.criteria.Expression<? extends java.lang.Number>)
    
    Specified by:
    
    asBigInteger in interface ExpressionImplementor<T>
    
    Returns:
    this but as a BigInteger
  - asString
```
public ExpressionImplementor<String> asString()
```
    Description copied from interface: ExpressionImplementor
    
    See CriteriaBuilder.toString(javax.persistence.criteria.Expression<java.lang.Character>)
    
    Specified by:
    
    asString in interface ExpressionImplementor<T>
    
    Returns:
    this but as a string

Class ExpressionImpl<T>

Nested Class Summary

Nested classes/interfaces inherited from interface org.hibernate.jpa.criteria.ParameterContainer

Constructor Summary

Method Summary

Methods inherited from class org.hibernate.jpa.criteria.expression.SelectionImpl

Methods inherited from class org.hibernate.jpa.criteria.expression.AbstractTupleElement

Methods inherited from class org.hibernate.jpa.criteria.AbstractNode

Methods inherited from class java.lang.Object

Methods inherited from interface org.hibernate.jpa.criteria.SelectionImplementor

Methods inherited from interface org.hibernate.jpa.criteria.TupleElementImplementor

Methods inherited from interface javax.persistence.criteria.Selection

Methods inherited from interface javax.persistence.TupleElement

Methods inherited from interface org.hibernate.jpa.criteria.Renderable

Methods inherited from interface org.hibernate.jpa.criteria.ParameterContainer

Constructor Detail

ExpressionImpl

Method Detail

as

isNull

isNotNull

in

in

in

in

asLong

asInteger

asFloat

asDouble

asBigDecimal

asBigInteger

asString