Question

I have a User class marked as entity which also implements UserDetails. I want to be able to grab some properties of a certain user, and based on their values, to return specific roles in the getAuthorities method. Many of those properties are however lazy-loaded and require a Hibernate transaction.

I tried anything from making the user class @Transactional to making the UserDetailsService and RememberMeService which I use @Transactional. None of those works!

All of my other DAO and Service classes mapped as transactional work (and they are just simple classes – no other annotations besides a @Transactional on top)

UPDATE: This is the overriden getUserDetails in class User

@Override
    public Collection<? extends GrantedAuthority> getAuthorities() {

        GrantedAuthority auth = new GrantedAuthority() {

            @Override
            public String getAuthority() {
                // TODO Auto-generated method stub
                return "ROLE_USER";
            }
        };

        ArrayList<GrantedAuthority> result = new ArrayList<GrantedAuthority>();

        if (options.size() > 0) {
            for (Option o : options) {
                result.add(createAuthority(Option.getStringType(o.type)));
            }
        }

        result.add(auth);

        return result;

    }

Answer 1

The UserDetails is not a Spring bean and thus is Spring is not going to look for @Transactional on it.

I would need to see a stack trace but what I’m assuming is that getAuthorities() is being called by another UserDetailsService method directly, i.e., not going through the transactional proxy.

Inject the PlatformTransactionManager into your UserDetailsService and use a TransactionTemplate in getAuthorities() to wrap your DB accessing code in a transaction.