/// <summary>
/// Retrieves an item from the cache.
/// </summary>
/// <param name="key">
/// Item key.
/// </param>
/// <returns>
/// Item for the specified <paramref name="key"/>, or <c>null</c>.
/// </returns>
public override object Get(object key)
{
return(key == null ? null : _cache.Get(GenerateKey(key)));
}
