HttpContext Items Strongly Typed

I have just refactored my nHibernate session store in HttpContext.Items to use this as the base class. This fits perfectly with the spring wiring and means that i can also use it in other projects, for other items that i want strongly typed access to the object. I forgot the dispose method so i was having bad memory leaks. See also the default(T) keyword, interesting.

    public abstract class AbstractObjectCacher<T> {

        #region IoC

        private IObjectCache<T> cache;

        public IObjectCache<T> Cache {

            set { cache = value; }

            get { return cache; }

        }

        #endregion

        public T Get() {

            return cache.Get();

        }

        public void Set(T obj) {

            cache.Set(obj);

        }

        public void Dispose() {

            T obj = Get();

            if(obj != null) {

                Set(default(T));

                if(obj is IDisposable) {

                    ((IDisposable)obj).Dispose();

                }

                obj = default(T);

            }

            cache.Clear();

        }

    }

So for instance, the thread store i use for unit testing will look like this:

    public class ThreadObjectCache<T> : IObjectCache<T> {

        #region IoC

        private string key;

        public string Key {

            set {

                key = value;

                ThreadStore.Initialise(key);

            }

            get { return key; }

        }

        #endregion

        public T Get() {

            return (T)ThreadStore.Get(key);

        }

        public void Set(T obj) {

            ThreadStore.Set(key, obj);

        }

        public void Clear() {

            ThreadStore.Set(key, null);

        }

        public void Dispose() {

            ThreadStore.Dispose(key);

        }

    }

And the HttpContext store will look like this:

    public class HttpContextCache<T> : IObjectCache<T> {

        #region IoC

        private string key;

        public string Key {

            set { key = value; }

            get { return key; }

        }

        #endregion
        public T Get() {

            return (T)HttpContext.Current.Items[key];

        }

        public void Set(T obj) {

            HttpContext.Current.Items[key] = obj;

        }

        public void Clear() {

            HttpContext.Current.Items[key] = null;

        }

        public void Dispose() {

            HttpContext.Current.Items.Remove(key);

        }

    }