How to use

getOrphans

method

in

org.hibernate.engine.spi.CollectionEntry

  /**
   * Delete any entities that were removed from the collection
   */
  private static void deleteOrphans(EventSource eventSource, String entityName, PersistentCollection pc) throws HibernateException {
    //TODO: suck this logic into the collection!
    final Collection orphans;
    if ( pc.wasInitialized() ) {
      final CollectionEntry ce = eventSource.getPersistenceContext().getCollectionEntry( pc );
      orphans = ce==null
          ? java.util.Collections.EMPTY_LIST
          : ce.getOrphans( entityName, pc );
    }
    else {
      orphans = pc.getQueuedOrphans( entityName );
    }

    for ( Object orphan : orphans ) {
      if ( orphan != null ) {
        LOG.tracev( "Deleting orphaned entity instance: {0}", entityName );
        eventSource.delete( entityName, orphan, false, new HashSet() );
      }
    }
  }
}

  /**
   * Delete any entities that were removed from the collection
   */
  private void deleteOrphans(String entityName, PersistentCollection pc) throws HibernateException {
    //TODO: suck this logic into the collection!
    final Collection orphans;
    if ( pc.wasInitialized() ) {
      CollectionEntry ce = eventSource.getPersistenceContext().getCollectionEntry(pc);
      orphans = ce==null ?
          CollectionHelper.EMPTY_COLLECTION :
          ce.getOrphans(entityName, pc);
    }
    else {
      orphans = pc.getQueuedOrphans(entityName);
    }

    final Iterator orphanIter = orphans.iterator();
    while ( orphanIter.hasNext() ) {
      Object orphan = orphanIter.next();
      if (orphan!=null) {
        LOG.tracev( "Deleting orphaned entity instance: {0}", entityName );
        eventSource.delete( entityName, orphan, false, new HashSet() );
      }
    }
  }
}

  /**
   * Delete any entities that were removed from the collection
   */
  private void deleteOrphans(String entityName, PersistentCollection pc) throws HibernateException {
    //TODO: suck this logic into the collection!
    final Collection orphans;
    if ( pc.wasInitialized() ) {
      CollectionEntry ce = eventSource.getPersistenceContext().getCollectionEntry(pc);
      orphans = ce==null ?
          CollectionHelper.EMPTY_COLLECTION :
          ce.getOrphans(entityName, pc);
    }
    else {
      orphans = pc.getQueuedOrphans(entityName);
    }

    final Iterator orphanIter = orphans.iterator();
    while ( orphanIter.hasNext() ) {
      Object orphan = orphanIter.next();
      if (orphan!=null) {
        LOG.tracev( "Deleting orphaned entity instance: {0}", entityName );
        eventSource.delete( entityName, orphan, false, new HashSet() );
      }
    }
  }
}

  /**
   * Delete any entities that were removed from the collection
   */
  private static void deleteOrphans(EventSource eventSource, String entityName, PersistentCollection pc) throws HibernateException {
    //TODO: suck this logic into the collection!
    final Collection orphans;
    if ( pc.wasInitialized() ) {
      final CollectionEntry ce = eventSource.getPersistenceContext().getCollectionEntry( pc );
      orphans = ce==null
          ? java.util.Collections.EMPTY_LIST
          : ce.getOrphans( entityName, pc );
    }
    else {
      orphans = pc.getQueuedOrphans( entityName );
    }

    for ( Object orphan : orphans ) {
      if ( orphan != null ) {
        LOG.tracev( "Deleting orphaned entity instance: {0}", entityName );
        eventSource.delete( entityName, orphan, false, new HashSet() );
      }
    }
  }
}

private void cascadeOrphans(JPABase base, PersistentCollection persistentCollection, boolean willBeSaved) {
  String dbName = JPA.getDBName(this.getClass());
  SessionImpl session = ((SessionImpl) JPA.em(dbName).getDelegate());
  PersistenceContext pc = session.getPersistenceContext();
  CollectionEntry ce = pc.getCollectionEntry(persistentCollection);
  if (ce != null) {
    CollectionPersister cp = ce.getLoadedPersister();
    if (cp != null) {
      Type ct = cp.getElementType();
      if (ct instanceof EntityType) {
        EntityEntry entry = pc.getEntry(base);
        String entityName = entry.getEntityName();
        entityName = ((EntityType) ct).getAssociatedEntityName(session.getFactory());
        if (ce.getSnapshot() != null) {
          Collection orphans = ce.getOrphans(entityName, persistentCollection);
          for (Object o : orphans) {
            saveAndCascadeIfJPABase(o, willBeSaved);
          }
        }
      }
    }
  }
}