javax.persistence.criteria

Interface CollectionJoin<Z,E>

Type Parameters:

Z - the source type of the join

E - the element type of the target Collection

All Superinterfaces:

Expression<E>, FetchParent<Z,E>, From<Z,E>, Join<Z,E>, Path<E>, PluralJoin<Z,java.util.Collection<E>,E>, Selection<E>, TupleElement<E>

public interface CollectionJoin<Z,E>
extends PluralJoin<Z,java.util.Collection<E>,E>

The CollectionJoin interface is the type of the result of joining to a collection over an association or element collection that has been specified as a java.util.Collection.

Since:

Java Persistence 2.0

Method Summary

Modifier and Type	Method and Description
CollectionAttribute<? super Z,E>	getModel() Return the metamodel representation for the collection attribute.
CollectionJoin<Z,E>	on(Expression<java.lang.Boolean> restriction) Modify the join to restrict the result according to the specified ON condition and return the join object.
CollectionJoin<Z,E>	on(Predicate... restrictions) Modify the join to restrict the result according to the specified ON condition and return the join object.

Methods inherited from interface javax.persistence.criteria.Join

getAttribute, getJoinType, getOn, getParent

Methods inherited from interface javax.persistence.criteria.From

getCorrelationParent, getJoins, isCorrelated, join, join, join, join, join, join, join, join, join, join, join, join, joinCollection, joinCollection, joinList, joinList, joinMap, joinMap, joinSet, joinSet

Methods inherited from interface javax.persistence.criteria.Path

get, get, get, get, getParentPath, type

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 javax.persistence.criteria.FetchParent

fetch, fetch, fetch, fetch, fetch, fetch, getFetches

Method Detail

on

CollectionJoin<Z,E> on(Expression<java.lang.Boolean> restriction)

Modify the join to restrict the result according to the specified ON condition and return the join object. Replaces the previous ON condition, if any.

Specified by:

on in interface Join<Z,E>

Parameters:

restriction - a simple or compound boolean expression

Returns:

the modified join object

Since:

Java Persistence 2.1

on

CollectionJoin<Z,E> on(Predicate... restrictions)

Modify the join to restrict the result according to the specified ON condition and return the join object. Replaces the previous ON condition, if any.

Specified by:

on in interface Join<Z,E>

Parameters:

restrictions - zero or more restriction predicates

Returns:

the modified join object

Since:

Java Persistence 2.1

getModel

CollectionAttribute<? super Z,E> getModel()

Return the metamodel representation for the collection attribute.

Specified by:

getModel in interface Path<E>

Specified by:

getModel in interface PluralJoin<Z,java.util.Collection<E>,E>

Returns:

metamodel type representing the Collection that is the target of the join