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public class OxxCacheManager
{
	public static void Add<T>(T o, string key, int absoluteExpireMinutesFromNow = 120) where T : class
	{
		// NOTE: Apply expiration parameters as you see fit.
		// In this example, I want an absolute
		// timeout so changes will always be reflected
		// at that time. Hence, the NoSlidingExpiration.
		HttpContext.Current.Cache.Insert(
			key,
			o,
			null,
			DateTime.Now.AddMinutes(absoluteExpireMinutesFromNow),
			System.Web.Caching.Cache.NoSlidingExpiration);
	}

	/// <summary>
	/// Remove item from cache
	/// </summary>
	/// <param name="key">Name of cached item</param>
	public static void Clear(string key)
	{
		HttpContext.Current.Cache.Remove(key);
	}

	/// <summary>
	/// Check for item in cache
	/// </summary>
	/// <param name="key">Name of cached item</param>
	/// <returns></returns>
	public static bool Exists(string key)
	{
		if(HttpContext.Current != null && HttpContext.Current.Cache != null)
		{
			return HttpContext.Current.Cache[key] != null;
		}
		return false;
	}

	/// <summary>
	/// Retrieve cached item
	/// </summary>
	/// <typeparam name="T">Type of cached item</typeparam>
	/// <param name="key">Name of cached item</param>
	/// <returns>Cached item as type</returns>
	public static T Get<T>(string key) where T : class
	{
		try
		{
			return (T)HttpContext.Current.Cache[key];
		}
		catch
		{
			return null;
		}
	}
}