Example usage for org.hibernate.collection.spi PersistentCollection unsetSession

Introduction

In this page you can find the example usage for org.hibernate.collection.spi PersistentCollection unsetSession.

Prototype

boolean unsetSession(SharedSessionContractImplementor currentSession);

Source Link

Document

Disassociate this collection from the given session.

Usage

From source file:org.jspresso.framework.application.backend.persistence.hibernate.HibernateHelper.java

License:Open Source License

/**
 * Whenever the entity has dirty persistent collection, make them clean to
 * workaround a "bug" with hibernate since hibernate cannot re-attach a
 * "dirty" detached collection./*from   w ww .  j a v  a 2  s.  co  m*/
 *
 * @param collection    the collection
 * @param targetSession the session that is targeted to after the dirty states have been
 *          reset or null if none.
 */
public static void unsetCollectionHibernateSession(PersistentCollection collection, Session targetSession) {
    // Whenever the entity has dirty persistent collection, make them
    // clean to workaround a "bug" with hibernate since hibernate cannot
    // re-attach a "dirty" detached collection.
    if (collection != null) {
        if (Hibernate.isInitialized(collection)) {
            collection.clearDirty();
        }
        if (collection instanceof AbstractPersistentCollection
                && ((AbstractPersistentCollection) collection).getSession() != null
                && targetSession != ((AbstractPersistentCollection) collection).getSession()) {
            // The following is to avoid to avoid Hibernate exceptions due to
            // re-associating a collection that is already associated with the
            // session.
            collection.unsetSession(((AbstractPersistentCollection) collection).getSession());
        }
    }
}

---