org.datanucleus.api.jpa.criteria

Class PathImpl<Z,X>

java.lang.Object

org.datanucleus.api.jpa.criteria.ExpressionImpl<X>

org.datanucleus.api.jpa.criteria.PathImpl<Z,X>

Type Parameters:

X - Type referenced by the path

All Implemented Interfaces:

Serializable, javax.persistence.criteria.Expression<X>, javax.persistence.criteria.Path<X>, javax.persistence.criteria.Selection<X>, javax.persistence.TupleElement<X>

Direct Known Subclasses:

FetchImpl, FromImpl

public class PathImpl<Z,X>
extends ExpressionImpl<X>
implements javax.persistence.criteria.Path<X>

Implementation of JPA2 Criteria "Path".

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected AttributeImpl<? super Z,?>	attribute
protected PathImpl<?,Z>	parent

Constructor Summary

Constructors

Constructor and Description
PathImpl(Class<X> cls)
PathImpl(PathImpl<?,Z> parent, AttributeImpl<? super Z,?> attr, Class<X> cls)

Method Summary

Methods

Modifier and Type	Method and Description
<K,V,M extends Map<K,V>> javax.persistence.criteria.Expression<M>	get(javax.persistence.metamodel.MapAttribute<X,K,V> attr)
<E,C extends Collection<E>> javax.persistence.criteria.Expression<C>	get(javax.persistence.metamodel.PluralAttribute<X,C,E> attr)
<Y> javax.persistence.criteria.Path<Y>	get(javax.persistence.metamodel.SingularAttribute<? super X,Y> attr)
<Y> javax.persistence.criteria.Path<Y>	get(String attrName)
javax.persistence.metamodel.Bindable<X>	getModel()
javax.persistence.criteria.Path<?>	getParentPath()
org.datanucleus.query.expression.Expression	getQueryExpression() Accessor for the underlying DataNucleus expression for this path.
javax.persistence.metamodel.Type<?>	getType()
String	toString() Method to return the path as something suitable for use as JPQL single-string.
javax.persistence.criteria.Expression<Class<? extends X>>	type()

Methods inherited from class org.datanucleus.api.jpa.criteria.ExpressionImpl

alias, as, getAlias, getCompoundSelectionItems, getJavaType, in, in, in, in, isCompoundSelection, isNotNull, isNull

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, 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

Field Detail

parent

protected final PathImpl<?,Z> parent

attribute

protected final AttributeImpl<? super Z,?> attribute

Constructor Detail

PathImpl

public PathImpl(Class<X> cls)

PathImpl

public PathImpl(PathImpl<?,Z> parent,
        AttributeImpl<? super Z,?> attr,
        Class<X> cls)

Method Detail

get

public <K,V,M extends Map<K,V>> javax.persistence.criteria.Expression<M> get(javax.persistence.metamodel.MapAttribute<X,K,V> attr)

Specified by:

get in interface javax.persistence.criteria.Path<X>

get

public <E,C extends Collection<E>> javax.persistence.criteria.Expression<C> get(javax.persistence.metamodel.PluralAttribute<X,C,E> attr)

Specified by:

get in interface javax.persistence.criteria.Path<X>

get

public <Y> javax.persistence.criteria.Path<Y> get(javax.persistence.metamodel.SingularAttribute<? super X,Y> attr)

Specified by:

get in interface javax.persistence.criteria.Path<X>

get

public <Y> javax.persistence.criteria.Path<Y> get(String attrName)

Specified by:

get in interface javax.persistence.criteria.Path<X>

getType

public javax.persistence.metamodel.Type<?> getType()

getModel

public javax.persistence.metamodel.Bindable<X> getModel()

Specified by:

getModel in interface javax.persistence.criteria.Path<X>

getParentPath

public javax.persistence.criteria.Path<?> getParentPath()

Specified by:

getParentPath in interface javax.persistence.criteria.Path<X>

type

public javax.persistence.criteria.Expression<Class<? extends X>> type()

Specified by:

type in interface javax.persistence.criteria.Path<X>

getQueryExpression

public org.datanucleus.query.expression.Expression getQueryExpression()

Accessor for the underlying DataNucleus expression for this path. Creates it if not yet existing.

Overrides:

getQueryExpression in class ExpressionImpl<X>

Returns:

The DataNucleus query expression

toString

public String toString()

Method to return the path as something suitable for use as JPQL single-string.

Overrides:

toString in class ExpressionImpl<X>

Returns:

The JPQL form