| Overload | Description |
|---|---|
| AddOrGetExisting<T>(String,T,DateTimeOffset,String) | Inserts a cache entry into the cache, by using a key, an object for the cache entry, an absolute expiration value, and an optional region to add the cache into. |
| AddOrGetExisting<T>(CacheItem,CacheItemPolicy) | Inserts the specified System.Runtime.Caching.CacheItem object into the cache, specifying information about how the entry will be evicted. |
| AddOrGetExisting<T>(String,T,CacheItemPolicy,String) | Inserts a cache entry into the cache, specifying a key and a value for the cache entry, and information about how the entry will be evicted. |