Hi, While investigating how Lock Cascading works, I realized that the lock "scope" is only applied for detached entities. Object entity = source.getPersistenceContext().unproxyAndReassociate( event.getObject() ); //TODO: if object was an uninitialized proxy, this is inefficient, // resulting in two SQL selects EntityEntry entry = source.getPersistenceContext().getEntry(entity); if (entry==null) { final EntityPersister persister = source.getEntityPersister( event.getEntityName(), entity ); final Serializable id = persister.getIdentifier( entity, source ); if ( !ForeignKeys.isNotTransient( event.getEntityName(), entity, Boolean.FALSE, source ) ) { throw new TransientObjectException( "cannot lock an unsaved transient instance: " + persister.getEntityName() ); } entry = reassociate(event, entity, id, persister); cascadeOnLock(event, persister, entity); } upgradeLock( entity, entry, event.getLockOptions(), event.getSession() ); If an entity is already attached, the Lock will only be applied to the request entity. If the lock request entity is detached, then it will be: - re-associated - and the lock cascade will be propagated The Cascade lock action looks like this: LockMode lockMode = LockMode.NONE; LockOptions lr = new LockOptions(); if ( anything instanceof LockOptions ) { LockOptions lockOptions = (LockOptions) anything; lr.setTimeOut( lockOptions.getTimeOut() ); lr.setScope( lockOptions.getScope() ); if ( lockOptions.getScope() ) { lockMode = lockOptions.getLockMode(); } } lr.setLockMode( lockMode ); session.buildLockRequest( lr ).lock( entityName, child );So, if I specify a "scope" lock request I can propagate the lock to all child association (configured with CascadeType.ALL or CascadeType.LOCK): Query:{[select id from Comment where id =? for update][1]} Query:{[select id from Comment where id =? for update][2]} Query:{[select id from PostDetails where id =? for update][1]} Query:{[select id from Post where id =? for update][1]}  Shouldn't this logic be consistent for both attached and detached entities? The test is available on GitHub: https://github.com/vladmihalcea/hibernate-master-class/blob/master/core/s... Vlad Mihalcea