org.hibernate.ejb.criteria.expression
Class SimpleCaseExpression<C,R>

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<R>
                  org.hibernate.ejb.criteria.expression.SimpleCaseExpression<C,R>

All Implemented Interfaces:

Serializable, CriteriaBuilder.SimpleCase<C,R>, Expression<R>, Selection<R>, TupleElement<R>, ExpressionImplementor<R>, ParameterContainer, Renderable, SelectionImplementor<R>, TupleElementImplementor<R>

public class SimpleCaseExpression<C,R>
extends ExpressionImpl<R>
implements CriteriaBuilder.SimpleCase<C,R>, Serializable

Models what ANSI SQL terms a simple case statement. This is a CASE expression in the form

 CASE [expression]
     WHEN [firstCondition] THEN [firstResult]
     WHEN [secondCondition] THEN [secondResult]
     ELSE [defaultResult]
 END
 

See Also:

Serialized Form

Nested Class Summary

class

SimpleCaseExpression.WhenClause

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

ParameterContainer.Helper

Constructor Summary

SimpleCaseExpression(CriteriaBuilderImpl criteriaBuilder, Class<R> javaType, Expression<? extends C> expression)

Method Summary

Expression<C>	getExpression()
Expression<? extends R>	getOtherwiseResult()
List<SimpleCaseExpression.WhenClause>	getWhenClauses()
Expression<R>	otherwise(Expression<? extends R> result)
Expression<R>	otherwise(R result)
void	registerParameters(ParameterRegistry registry) Register any parameters contained within this query component with the given registry.
String	render(CriteriaQueryCompiler.RenderingContext renderingContext)
String	renderProjection(CriteriaQueryCompiler.RenderingContext renderingContext)
CriteriaBuilder.SimpleCase<C,R>	when(C condition, Expression<? extends R> result)
CriteriaBuilder.SimpleCase<C,R>	when(C condition, R result)

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

as, asBigDecimal, asBigInteger, asDouble, asFloat, asInteger, asLong, asString, in, in, in, in, isNotNull, 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 javax.persistence.criteria.Expression

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

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.SelectionImplementor

getValueHandlers

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

getValueHandler

Constructor Detail

SimpleCaseExpression

public SimpleCaseExpression(CriteriaBuilderImpl criteriaBuilder,
                            Class<R> javaType,
                            Expression<? extends C> expression)

Method Detail

getExpression

public Expression<C> getExpression()

Specified by:

getExpression in interface CriteriaBuilder.SimpleCase<C,R>

when

public CriteriaBuilder.SimpleCase<C,R> when(C condition,
                                            R result)

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

when

public CriteriaBuilder.SimpleCase<C,R> when(C condition,
                                            Expression<? extends R> result)

Specified by:

when in interface CriteriaBuilder.SimpleCase<C,R>

otherwise

public Expression<R> otherwise(R result)

Specified by:

otherwise in interface CriteriaBuilder.SimpleCase<C,R>

otherwise

public Expression<R> otherwise(Expression<? extends R> result)

Specified by:

otherwise in interface CriteriaBuilder.SimpleCase<C,R>

getOtherwiseResult

public Expression<? extends R> getOtherwiseResult()

getWhenClauses

public List<SimpleCaseExpression.WhenClause> getWhenClauses()

registerParameters

public void registerParameters(ParameterRegistry registry)

Description copied from interface: ParameterContainer

Register any parameters contained within this query component with the given registry.

Specified by:

registerParameters in interface ParameterContainer

Parameters:

registry - The parameter registry with which to register.

render

public String render(CriteriaQueryCompiler.RenderingContext renderingContext)

Specified by:

render in interface Renderable

renderProjection

public String renderProjection(CriteriaQueryCompiler.RenderingContext renderingContext)

Specified by:

renderProjection in interface Renderable