org.hibernate.ejb.criteria.expression
Class ExpressionImpl<T>

java.lang.Object
  org.hibernate.ejb.criteria.AbstractNode
      org.hibernate.ejb.criteria.expression.AbstractTupleElement<X>
          org.hibernate.ejb.criteria.expression.SelectionImpl<T>
              org.hibernate.ejb.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, EntityTypeExpression, ListIndexExpression, LiteralExpression, MapEntryExpression, 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.ejb.criteria.ParameterContainer

ParameterContainer.Helper

Constructor Summary

ExpressionImpl(CriteriaBuilderImpl criteriaBuilder, Class<T> javaType)

Method Summary

<X> Expression<X>	as(Class<X> type)
ExpressionImplementor<BigDecimal>	asBigDecimal() See CriteriaBuilder.toBigDecimal(javax.persistence.criteria.Expression)
ExpressionImplementor<BigInteger>	asBigInteger() See CriteriaBuilder.toBigInteger(javax.persistence.criteria.Expression)
ExpressionImplementor<Double>	asDouble() See CriteriaBuilder.toDouble(javax.persistence.criteria.Expression)
ExpressionImplementor<Float>	asFloat() See CriteriaBuilder.toFloat(javax.persistence.criteria.Expression)
ExpressionImplementor<Integer>	asInteger() See CriteriaBuilder.toInteger(javax.persistence.criteria.Expression)
ExpressionImplementor<Long>	asLong() See CriteriaBuilder.toLong(javax.persistence.criteria.Expression)
ExpressionImplementor<String>	asString() See CriteriaBuilder.toString(javax.persistence.criteria.Expression)
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.ejb.criteria.expression.SelectionImpl

alias, getCompoundSelectionItems, getValueHandlers, isCompoundSelection

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

forceConversion, getAlias, getJavaType, getValueHandler, resetJavaType, setAlias

Methods inherited from class org.hibernate.ejb.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.ejb.criteria.SelectionImplementor

getValueHandlers

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

render, renderProjection

Methods inherited from interface org.hibernate.ejb.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()

See CriteriaBuilder.toLong(javax.persistence.criteria.Expression)

Specified by:

asLong in interface ExpressionImplementor<T>

Returns:

this but as a long

asInteger

public ExpressionImplementor<Integer> asInteger()

See CriteriaBuilder.toInteger(javax.persistence.criteria.Expression)

Specified by:

asInteger in interface ExpressionImplementor<T>

Returns:

this but as an integer

asFloat

public ExpressionImplementor<Float> asFloat()

See CriteriaBuilder.toFloat(javax.persistence.criteria.Expression)

Specified by:

asFloat in interface ExpressionImplementor<T>

Returns:

this but as a float

asDouble

public ExpressionImplementor<Double> asDouble()

See CriteriaBuilder.toDouble(javax.persistence.criteria.Expression)

Specified by:

asDouble in interface ExpressionImplementor<T>

Returns:

this but as a double

asBigDecimal

public ExpressionImplementor<BigDecimal> asBigDecimal()

See CriteriaBuilder.toBigDecimal(javax.persistence.criteria.Expression)

Specified by:

asBigDecimal in interface ExpressionImplementor<T>

Returns:

this but as a BigDecimal

asBigInteger

public ExpressionImplementor<BigInteger> asBigInteger()

See CriteriaBuilder.toBigInteger(javax.persistence.criteria.Expression)

Specified by:

asBigInteger in interface ExpressionImplementor<T>

Returns:

this but as a BigInteger

asString

public ExpressionImplementor<String> asString()

See CriteriaBuilder.toString(javax.persistence.criteria.Expression)

Specified by:

asString in interface ExpressionImplementor<T>

Returns:

this but as a string