What Hibernate cascading mode is used as much as possible? This mode is specified per cardinality in the hibernate mapping. 

'''Option 1:''' save-update
 * + no resources gets magically deleted
 * - resources do remain


'''Option 2:''' all
 * + related resources are always cleaned uyp
 * - magic deletion which might not be desirable 

Chosen option 2
I ran into the situation that I was inserting and deleting. The thing is that with option 1, Hibernate does not delete the related resources. Therefore I have chosen for option 2. Note thought that this can be differentiated per entity.