Javadoc
enables the read filter such that graph queries will have non-visible
entities silently removed from the return value. This filter does
not
apply to single value loads from the database. See
ome.security.ACLVoter#allowLoad(Session,Class,Details,long) for more.
Note: this filter must be disabled on logout, otherwise the necessary
parameters (current user, current group, etc.) for building the filters
will not be available. Similarly, while enabling this filter, no calls
should be made on the given session object.