About join

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JPA Doc
42

javax.persistence.criteria.ListJoin

>, From, Join, Path, PluralJoin,E>, Selection, TupleElement The ListJoin interface is the type of the result of joining to a collection over an association or element ... expression of the given type Since: JPA 2.0 Fetch fetch(String attributeName) Create a fetch join
JPA Doc
42

javax.persistence.criteria.MapJoin

>, From, Join, Path, PluralJoin,V>, Selection, TupleElement The MapJoin interface is the type of the result of joining to a collection over an association or element ... a fetch join to the specified attribute using an inner join. Create a fetch join to the specified
JPA Doc
42

javax.persistence.criteria.SetJoin

>, From, Join, Path, PluralJoin,E>, Selection, TupleElement The SetJoin interface is the type of the result of joining to a collection over an association or element ... expression of the given type Since: JPA 2.0 Fetch fetch(String attributeName) Create a fetch join
JPA Doc
41

javax.persistence.criteria.PluralJoin

, From, Join, Path, Selection, TupleElement Subinterfaces: CollectionJoin, ListJoin, MapJoin, SetJoin The PluralJoin interface defines functionality that is common to joins ...  attributeName) Create a fetch join to the specified attribute using an inner join. Create a fetch join
JPA Doc
40

javax.persistence.criteria.From

>, Path, Selection, TupleElement Subinterfaces: CollectionJoin, Join, ListJoin, MapJoin ... , but may also be an embeddable belonging to an entity in the from clause. Serves as a factory for Joins ... Since: JPA 2.0 Fetch fetch(String attributeName) Create a fetch join to the specified attribute using
JPA Doc
40

javax.persistence.criteria.Root

> fetch(String attributeName) Create a fetch join to the specified attribute using an inner join. Create a fetch join to the specified attribute using an inner join. Parameters: attributeName - name of the attribute for the target of the join Returns: the resulting fetch join Throws
Forum
33

JPQL JOIN FETCH Error

Hello I get an error when executing the following JPQL query: select doi from Doi doi left join fetch doi.metadata metadata left join fetch metadata.titles titles left join fetch metadata.creators creators left join fetch metadata.descriptions descriptions left join fetch metadata
Forum
32

Left join fetch behaviour doesn't retrieve children?

Hello, I'm a little bit confused about a left join fetch behaviour. In this test case, i try to fetch my 3 children using a left join fetch. But my collection is null after closing the em ... left join fetch         em = emf.createEntityManager();         TypedQuery query
Forum
31

LEFT JOIN FETCH over empty embedded collection returns no results

First of all, thank you for promptly implementing JOIN FETCH over nested paths in response ... , but I attempt to LEFT JOIN FETCH all the members of a collection within a (non-existent) member ... where bList is empty, the following works (returns my instance of C): SELECT c FROM C c LEFT JOIN
Forum
30

multiple LEFT JOINs do not work as expected

like this: SELECT DISTINCT $1 FROM Organisation $1 JOIN $1.attributeList $2 LEFT JOIN $1.parentOrg $3 LEFT JOIN $3.parentOrg $4 WHERE ((($2.name='Attribute1') AND ($2 ... , since I use LEFT Joins this query should return all organisation under the root organisation