ObjectCache.CreateCacheEntryChangeMonitor Method (IEnumerable<String>, String)
When overridden in a derived class, creates a CacheEntryChangeMonitor object that can trigger events in response to changes to specified cache entries.
Assembly: System.Runtime.Caching (in System.Runtime.Caching.dll)
public abstract CacheEntryChangeMonitor CreateCacheEntryChangeMonitor( IEnumerable<string> keys, string regionName = null )
Parameters
- keys
-
Type:
System.Collections.Generic.IEnumerable<String>
The unique identifiers for cache entries to monitor.
- regionName
-
Type:
System.String
Optional. A named region in the cache where the cache keys in the keys parameter exist, if regions are implemented. The default value for the optional parameter is null.
Return Value
Type: System.Runtime.Caching.CacheEntryChangeMonitorA change monitor that monitors cache entries in the cache.
When a derived ObjectCache class overrides the base CreateCacheEntryChangeMonitor method, the cache implementation must create a CacheEntryChangeMonitor object. This specialized change monitor notifies callers when there are changes to the cache entries that are specified in the keys parameter. For example, if a monitored item in the keys parameter is updated or removed from the cache, the change monitor created by this method triggers an event.
If a cache implementation supports named cache regions, a string value can be specified as the regionName parameter. Otherwise, the parameter defaults to null.
Note |
|---|
Not all cache implementations support cache-entry change monitors. To determine whether your cache implementation supports CacheEntryChangeMonitor objects, see the documentation for the specific cache implementation. |
Available since 4.0
