public virtual void Unsubscribe(Article article, ISubscriber subscriber)
{
if (article == null)
{
throw new ArgumentNullException("article");
}
if (subscriber == null)
{
throw new ArgumentNullException("subscriber");
}
ArticleSubscription subscription = new ArticleSubscription(article, subscriber);
subscriptionStore.Remove(((IObjectWithKey)subscription).Key);
}
public virtual void Subscribe(Article article, ISubscriber subscriber)
{
if (article == null)
{
throw new ArgumentNullException("article");
}
if (subscriber == null)
{
throw new ArgumentNullException("subscriber");
}
ArticleSubscription subscription = new ArticleSubscription(article, subscriber);
string key = ((IObjectWithKey)subscription).Key;
if (subscriptionStore.Select(key) == null)
{
subscriptionStore.Save(subscription);
}
}
