/**
* Iterate just the elements of the collection that are already there. Don't load any new elements
* from the database.
*/
public static Iterator getLoadedElementsIterator(
SessionImplementor session, CollectionType collectionType, Object collection) {
if (collectionIsInitialized(collection)) {
// handles arrays and newly instantiated collections
return collectionType.getElementsIterator(collection, session);
} else {
// does not handle arrays (thats ok, cos they can't be lazy)
// or newly instantiated collections, so we can do the cast
return ((PersistentCollection) collection).queuedAdditionIterator();
}
}
/**
* Given a collection, get an iterator of all its children, loading them from the database if
* necessary.
*
* @param session The session within which the cascade is occuring.
* @param collectionType The mapping type of the collection.
* @param collection The collection instance.
* @return The children iterator.
*/
private static Iterator getAllElementsIterator(
EventSource session, CollectionType collectionType, Object collection) {
return collectionType.getElementsIterator(collection, session);
}