/**
* 1. record the collection role that this collection is referenced by 2. decide if the collection
* needs deleting/creating/updating (but don't actually schedule the action yet)
*/
@SuppressWarnings({"JavaDoc"})
private static void prepareCollectionForUpdate(
PersistentCollection collection, CollectionEntry entry, SessionFactoryImplementor factory) {
if (entry.isProcessed()) {
throw new AssertionFailure("collection was processed twice by flush()");
}
entry.setProcessed(true);
final CollectionPersister loadedPersister = entry.getLoadedPersister();
final CollectionPersister currentPersister = entry.getCurrentPersister();
if (loadedPersister != null
|| currentPersister != null) { // it is or was referenced _somewhere_
boolean ownerChanged =
loadedPersister != currentPersister
|| // if either its role changed,
!currentPersister
.getKeyType()
.isEqual( // or its key changed
entry.getLoadedKey(), entry.getCurrentKey(), factory);
if (ownerChanged) {
// do a check
final boolean orphanDeleteAndRoleChanged =
loadedPersister != null
&& currentPersister != null
&& loadedPersister.hasOrphanDelete();
if (orphanDeleteAndRoleChanged) {
throw new HibernateException(
"Don't change the reference to a collection with cascade=\"all-delete-orphan\": "
+ loadedPersister.getRole());
}
// do the work
if (currentPersister != null) {
entry.setDorecreate(true); // we will need to create new entries
}
if (loadedPersister != null) {
entry.setDoremove(true); // we will need to remove ye olde entries
if (entry.isDorecreate()) {
LOG.trace("Forcing collection initialization");
collection.forceInitialization();
}
}
} else if (collection.isDirty()) {
// the collection's elements have changed
entry.setDoupdate(true);
}
}
}
