javax.persistence.criteria
Interface ListJoin<Z,E>
Type Parameters: Z
- the source type of the joinE
- the element type of the target List
All Superinterfaces: Expression <E>, FetchParent <Z,E>, From <Z,E>, Join <Z,E>, Path <E>, PluralJoin <Z,java.util.List<E>,E>, Selection <E>, TupleElement <E>
public interface ListJoin<Z,E> extends PluralJoin <Z,java.util.List<E>,E>
The ListJoin
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.List
.
Since:
Java Persistence 2.0
Method Summary
ListAttribute <? super Z ,E >
getModel ()
Return the metamodel representation for the list attribute.
Expression <java.lang.Integer>
index ()
Create an expression that corresponds to the index of
the object in the referenced association or element
collection.
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
getModel
ListAttribute <? super Z ,E > getModel ()
Return the metamodel representation for the list attribute.
Specified by: getModel
in interface Path <E >
Specified by: getModel
in interface PluralJoin <Z ,java.util.List<E >,E >
Returns: metamodel type representing the List
that is
the target of the join
index
Expression <java.lang.Integer> index ()
Create an expression that corresponds to the index of
the object in the referenced association or element
collection.
This method must only be invoked upon an object that
represents an association or element collection for
which an order column has been defined.
Returns: expression denoting the index
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