| public AddOrGetExisting ( string key, object value, System.Runtime.Caching.CacheItemPolicy policy, string regionName = null ) : object | ||
| key | string | A unique identifier for the cache entry to add or get. |
| value | object | The data for the cache entry. |
| policy | System.Runtime.Caching.CacheItemPolicy | An object that contains eviction details for the cache entry. This object provides more options for eviction than a simple absolute expiration. |
| regionName | string | A named region in the cache to which a cache entry can be added. Do not pass a value for this parameter. By default, this parameter is null, because the |
| 리턴 | object | |
/// <summary>
/// Gets the existing or a new item from cache
/// </summary>
/// <param name="key">The key.</param>
/// <param name="valueFactory">The value factory.</param>
/// <returns></returns>
public static GlobalAttributesCache GetOrAddExisting(string key, Func <GlobalAttributesCache> valueFactory)
{
var newValue = new Lazy <GlobalAttributesCache>(valueFactory);
var oldValue = _cache.AddOrGetExisting(key, newValue, new CacheItemPolicy()) as Lazy <GlobalAttributesCache>;
try
{
return((oldValue ?? newValue).Value);
}
catch
{
_cache.Remove(key);
throw;
}
}
/// <summary>
/// Gets the or add existing.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="valueFactory">The value factory.</param>
/// <returns></returns>
public static int GetOrAddExisting(string key, Func <int> valueFactory)
{
RockMemoryCache cache = RockMemoryCache.Default;
var newValue = new Lazy <int>(valueFactory);
var oldValue = cache.AddOrGetExisting(key, newValue, new CacheItemPolicy()) as Lazy <int>;
try
{
return((oldValue ?? newValue).Value);
}
catch
{
cache.Remove(key);
throw;
}
}
