org.datanucleus.api.jpa.criteria

Class FetchImpl<Z,X>

java.lang.Object

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

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

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

Type Parameters:

Z - type from which joining

X - type of the attribute being joined

All Implemented Interfaces:

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

public class FetchImpl<Z,X>
extends PathImpl<Z,X>
implements javax.persistence.criteria.Fetch<Z,X>

Implementation of JPA2 Criteria "Fetch".

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Set<javax.persistence.criteria.Fetch<X,?>>	fetches
protected javax.persistence.criteria.JoinType	joinType

Fields inherited from class org.datanucleus.api.jpa.criteria.PathImpl

attribute, parent

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

cb

Constructor Summary

Constructors

Constructor and Description
FetchImpl(CriteriaBuilderImpl cb, FromImpl<?,Z> parent, AttributeImpl<? super Z,X> attr, javax.persistence.criteria.JoinType joinType) Constructor for a fetch join to an entity.

Method Summary

Modifier and Type	Method and Description
<Y> javax.persistence.criteria.Fetch<X,Y>	fetch(javax.persistence.metamodel.PluralAttribute<? super X,?,Y> attr)
<Y> javax.persistence.criteria.Fetch<X,Y>	fetch(javax.persistence.metamodel.PluralAttribute<? super X,?,Y> attr, javax.persistence.criteria.JoinType type)
<Y> javax.persistence.criteria.Fetch<X,Y>	fetch(javax.persistence.metamodel.SingularAttribute<? super X,Y> attr)
<Y> javax.persistence.criteria.Fetch<X,Y>	fetch(javax.persistence.metamodel.SingularAttribute<? super X,Y> attr, javax.persistence.criteria.JoinType type)
<X,Y> javax.persistence.criteria.Fetch<X,Y>	fetch(String attrName)
<X,Y> javax.persistence.criteria.Fetch<X,Y>	fetch(String attrName, javax.persistence.criteria.JoinType type)
javax.persistence.metamodel.Attribute<? super Z,?>	getAttribute()
Set<javax.persistence.criteria.Fetch<X,?>>	getFetches()
javax.persistence.criteria.JoinType	getJoinType()
javax.persistence.criteria.FetchParent<?,Z>	getParent()

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

get, get, get, get, getModel, getParentPath, getQueryExpression, getType, toString, 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

fetches

protected Set<javax.persistence.criteria.Fetch<X,?>> fetches

joinType

protected javax.persistence.criteria.JoinType joinType

Constructor Detail

FetchImpl

public FetchImpl(CriteriaBuilderImpl cb,
                 FromImpl<?,Z> parent,
                 AttributeImpl<? super Z,X> attr,
                 javax.persistence.criteria.JoinType joinType)

Constructor for a fetch join to an entity.

Parameters:

cb - Criteria Builder

parent - Parent object

attr - The type joining to

joinType - Type of join (Inner/LeftOuter/RightOuter)

Method Detail

fetch

public <Y> javax.persistence.criteria.Fetch<X,Y> fetch(javax.persistence.metamodel.PluralAttribute<? super X,?,Y> attr,
                                                       javax.persistence.criteria.JoinType type)

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

fetch

public <Y> javax.persistence.criteria.Fetch<X,Y> fetch(javax.persistence.metamodel.PluralAttribute<? super X,?,Y> attr)

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

fetch

public <Y> javax.persistence.criteria.Fetch<X,Y> fetch(javax.persistence.metamodel.SingularAttribute<? super X,Y> attr,
                                                       javax.persistence.criteria.JoinType type)

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

fetch

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

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

fetch

public <X,Y> javax.persistence.criteria.Fetch<X,Y> fetch(String attrName,
                                                         javax.persistence.criteria.JoinType type)

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

fetch

public <X,Y> javax.persistence.criteria.Fetch<X,Y> fetch(String attrName)

Specified by:

fetch in interface javax.persistence.criteria.FetchParent<Z,X>

getFetches

public Set<javax.persistence.criteria.Fetch<X,?>> getFetches()

Specified by:

getFetches in interface javax.persistence.criteria.FetchParent<Z,X>

getAttribute

public javax.persistence.metamodel.Attribute<? super Z,?> getAttribute()

Specified by:

getAttribute in interface javax.persistence.criteria.Fetch<Z,X>

getJoinType

public javax.persistence.criteria.JoinType getJoinType()

Specified by:

getJoinType in interface javax.persistence.criteria.Fetch<Z,X>

getParent

public javax.persistence.criteria.FetchParent<?,Z> getParent()

Specified by:

getParent in interface javax.persistence.criteria.Fetch<Z,X>