| Callback interface for Hibernate code. To be used with
HibernateTemplate 's
execution methods, often as anonymous classes within a method implementation.
The typical implementation will call Session.load/find/update to perform
some operations on persistent objects. It can also perform direct JDBC operations
via Hibernate's Session.connection(), operating on a JDBC Connection.
Note that Hibernate works on unmodified plain Java objects, performing dirty
detection via copies made at load time. Returned objects can thus be used outside
of an active Hibernate Session without any hassle, e.g. for display in a web GUI.
Reassociating such instances with a new Session, e.g. for updates when coming
back from the GUI, is straightforward, as the instance has kept its identity.
You should care to reassociate them as early as possible though, to avoid having
already loaded a version from the database in the same Session.
author:
Juergen Hoeller
since:
02.05.2003
See Also: HibernateTemplate
See Also: HibernateTransactionManager |