/// <summary>
/// Inserts a cache entry into the cache, overwriting any existing cache entry.
/// </summary>
/// <param name="key">A unique identifier for the cache entry.</param>
/// <param name="value">The object to insert.</param>
/// <param name="absoluteExpiration">The fixed date and time at which the cache entry will expire.</param>
/// <param name="regionName">Ignored.</param>
/// <returns>true if insertion succeeded, false otherwise.</returns>
public override bool Add(string key, object value, DateTimeOffset absoluteExpiration, string regionName = null)
{
// Sanitize
if (string.IsNullOrWhiteSpace(key))
{
throw new ArgumentException("cannot be null, empty, or white space", "key");
}
if (value == null)
{
throw new ArgumentNullException("value");
}
var cacheKey = string.Format(_cacheKey, key);
_cacheClient.AddOrUpdate(cacheKey, value, absoluteExpiration: absoluteExpiration);
return(true);
}