org.springframework.orm.hibernate5

Interface HibernateCallback<T>

Type Parameters:

T - the result type

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface HibernateCallback<T>

Callback interface for Hibernate code. To be used with HibernateTemplate's execution methods, often as anonymous classes within a method implementation. A typical implementation will call Session.load/find/update to perform some operations on persistent objects.

Since:

4.2

Author:

Juergen Hoeller

See Also:

HibernateTemplate, HibernateTransactionManager

Method Summary

Modifier and Type	Method and Description
T	doInHibernate(Session session) Gets called by HibernateTemplate.execute with an active Hibernate Session.

Method Detail

doInHibernate

@Nullable
T doInHibernate(Session session)
                   throws HibernateException

Gets called by HibernateTemplate.execute with an active Hibernate Session. Does not need to care about activating or closing the Session, or handling transactions.

Allows for returning a result object created within the callback, i.e. a domain object or a collection of domain objects. A thrown custom RuntimeException is treated as an application exception: It gets propagated to the caller of the template.

Parameters:

session - active Hibernate session

Returns:

a result object, or null if none

Throws:

HibernateException - if thrown by the Hibernate API

See Also:

HibernateTemplate.execute(org.springframework.orm.hibernate5.HibernateCallback<T>)