[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3414) fetch profiles

fetch profiles -------------- Key: HHH-3414 URL: https://hibernate.onjira.com/browse/HHH-3414 Project: Hibernate ORM Issue Type: New Feature Components: core, metamodel Reporter: Steve Ebersole Assignee: Steve Ebersole The concept of fetch profiles as we are discussing here is basically to allow users to dynamically affect the mapped fetching strategy for associations at runtime. Consider the following example: <class name="Person"> ... <set name="addresses" lazy="true" fetch="subselect" ...> ... </set> </class> <class name="Address"> ... </class> This follows the normal recommendation to map associations as lazy and use a dynamic fetching strategy (ala HQL/Criteria) to modify this lazy behavior at runtime. The fetaure discussed here would allow the same behavior for loading as well: <hibernate-mapping> <fetch-profile name="person-details"> <fetch path="Person.addresses" style="join"/> </fetch-profile> </hibernate-mapping> Or: <hibernate-mapping> <class name="Person"> ... <fetch-profile name="person-details"> <fetch path="addresses" style="join"/> </fetch-profile> <set name="addresses" lazy="true" fetch="subselect" ...> ... </set> </class> </hibernate-mapping> Now, doing: session.enableFetchProfile( "person-details" ).get( Person.class, 1 )... will load Person#1 as well as their addresses in a single joined query.