RavenDb stuff

ISessionBoundary.cs

public interface ISessionBoundary : IDisposable
    {
        IDocumentSession Session();
        bool WithOpenSession(Action<IDocumentSession> action);
        void SaveChanges();
        void Start();
        void MakeReadOnly();
    }

SessionBoundary.cs

public class SessionBoundary : ISessionBoundary
    {
        private readonly IDocumentStore _store;
        private Lazy<IDocumentSession> _session;

        public SessionBoundary(IDocumentStore store)
        {
            _store = store;
            reset();
        }

        private void reset()
        {
            Dispose();
            _session = new Lazy<IDocumentSession>(_store.OpenSession);
        }

        public void Dispose()
        {
            WithOpenSession(s => s.Dispose());
        }

        public IDocumentSession Session()
        {
            return _session.Value;
        }

        public bool WithOpenSession(Action<IDocumentSession> action)
        {
            if (_session != null && _session.IsValueCreated)
            {
                action(_session.Value);
                return true;
            }

            return false;
        }

        public void SaveChanges()
        {
            WithOpenSession(s => s.SaveChanges());
        }

        public void Start()
        {
            reset();
        }

        public void MakeReadOnly()
        {
            // this doesn't do anything yet
        }
    }