org.hibernate.jpa.criteria.expression

Class SelectionImpl<X>

java.lang.Object

org.hibernate.jpa.criteria.AbstractNode

org.hibernate.jpa.criteria.expression.AbstractTupleElement<X>

org.hibernate.jpa.criteria.expression.SelectionImpl<X>

All Implemented Interfaces:

Serializable, Selection<X>, TupleElement<X>, ParameterContainer, SelectionImplementor<X>, TupleElementImplementor<X>

Direct Known Subclasses:

CompoundSelectionImpl, ExpressionImpl

public abstract class SelectionImpl<X>
extends AbstractTupleElement<X>
implements SelectionImplementor<X>, ParameterContainer, Serializable

The Hibernate implementation of the JPA Selection contract.

Author:

Steve Ebersole

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
SelectionImpl(CriteriaBuilderImpl criteriaBuilder, Class<X> javaType)

Method Summary

Modifier and Type	Method and Description
Selection<X>	alias(String alias) Assigns an alias to the selection item.
List<Selection<?>>	getCompoundSelectionItems() Return the selection items composing a compound selection.
List<ValueHandlerFactory.ValueHandler>	getValueHandlers()
boolean	isCompoundSelection() Whether the selection item is a compound selection.

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.TupleElementImplementor

getValueHandler

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

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

registerParameters

Constructor Detail

SelectionImpl

public SelectionImpl(CriteriaBuilderImpl criteriaBuilder,
                     Class<X> javaType)

Method Detail

alias

public Selection<X> alias(String alias)

Description copied from interface: Selection

Assigns an alias to the selection item. Once assigned, an alias cannot be changed or reassigned. Returns the same selection item.

Specified by:

alias in interface Selection<X>

Parameters:

alias - alias

Returns:

selection item

isCompoundSelection

public boolean isCompoundSelection()

Description copied from interface: Selection

Whether the selection item is a compound selection.

Specified by:

isCompoundSelection in interface Selection<X>

Returns:

boolean indicating whether the selection is a compound selection

getValueHandlers

public List<ValueHandlerFactory.ValueHandler> getValueHandlers()

Specified by:

getValueHandlers in interface SelectionImplementor<X>

getCompoundSelectionItems

public List<Selection<?>> getCompoundSelectionItems()

Description copied from interface: Selection

Return the selection items composing a compound selection. Modifications to the list do not affect the query.

Specified by:

getCompoundSelectionItems in interface Selection<X>

Returns:

list of selection items