/// <summary>
/// Specifies that each entry should be automatically removed from the cache once a duration
/// has elapsed after the entry's creation, the most recent replacement of its value, or its
/// last read. The expiration time is reset by all cache read and write operations (including
/// <see cref="ICache{K, V}.TryGetValue(K)"/> and <see cref="ICache{K, V}.Add(K, V)"/>.
///
/// Expired entries may be counted in <see cref="ICache{K, V}.EstimatedSize"/>, but will never be
/// visible to read or write operations. Expired entries are cleaned up as part of the routine
/// maintenance.
/// </summary>
/// <param name="expiry">The expiry to use in calculating the expiration time of cache entries</param>
/// <returns></returns>
/// <exception cref="InvalidOperationException">if expiration was already set.</exception>
/// <exception cref="ArgumentNullException">if expiry is <see langword="null"/></exception>
public Caffeine <K, V> SpecifyExpireVariable(IExpiry <K, V> expiry)
{
if (expireAfterAccessNanoseconds != UNSET_INT)
{
throw new InvalidOperationException("Expirer may not be used with ExpireAfterAccess.");
}
if (expireAfterWriteNanoseconds != UNSET_INT)
{
throw new InvalidOperationException("Expirer may not be used with ExpireAfterWrite.");
}
if (this.expiry != null)
{
throw new InvalidOperationException("Expirer was already set.");
}
if (expiry == null)
{
throw new ArgumentNullException("expiry", "Expirer cannot be set to NULL.");
}
this.expiry = expiry;
return(this);
}
public AsyncExpiry(IExpiry <K, V> @delegate)
{
this.@delegate = @delegate ?? throw new ArgumentNullException("@delegate", "expiry cannot be NULL.");
}