/// <summary>
/// Cache Channel
/// </summary>
/// <param name="tableName">tableName</param>
/// <param name="cacheKey">cacheKey</param>
/// <param name="func">Func<object></param>
/// <returns></returns>
private static object CacheChannel(string tableName, string cacheKey, Func <object> func)
{
/**
* author:qixiao
* create:2017-8-7 22:47:13
* Howw to judge a cache lose efficacy when we update the table data ？
* we add another cache name changeCache， let key = tableName，expire time default ，like 1.
* once we gain data from cache ， validate changeCache has any value not null.if it is ,regard value changed,we should gain table data renew not from cache.
* if it is null , regard as unchanged, if cacheCache expire ,dataCache expired too,we can gain cache relieved
* */
if (HttpRuntimeCache_Helper_DG.Cache_Get(tableName) == null)
{
object cacheValue = HttpRuntimeCache_Helper_DG.Cache_Get(cacheKey);
if (cacheValue != null)
{
return(cacheValue);
}
}
//Execute Action
object result = func();
HttpRuntimeCache_Helper_DG.Cache_Add(cacheKey, result);
HttpRuntimeCache_Helper_DG.Cache_Delete(tableName);
return(result);
}
/// <summary>
/// TableConstructionCache
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="cacheKey"></param>
/// <param name="func"></param>
/// <returns></returns>
internal static T TableConstructionCache <T>(string cacheKey, Func <T> func) where T : class
{
string hashKey = cacheKey.GetHashCode().ToString();
object cacheValue = HttpRuntimeCache_Helper_DG.Cache_Get(hashKey);
if (cacheValue != null)
{
return(cacheValue as T);
}
cacheValue = func();
HttpRuntimeCache_Helper_DG.Cache_Add(hashKey, cacheValue, 1440);
return(cacheValue as T);
}
