ObjectCache.CreateCacheEntryChangeMonitor Method
Definition
Important
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When overridden in a derived class, creates a CacheEntryChangeMonitor object that can trigger events in response to changes to specified cache entries.
public abstract System.Runtime.Caching.CacheEntryChangeMonitor CreateCacheEntryChangeMonitor (System.Collections.Generic.IEnumerable<string> keys, string regionName = default);abstract member CreateCacheEntryChangeMonitor : seq<string> * string -> System.Runtime.Caching.CacheEntryChangeMonitorPublic MustOverride Function CreateCacheEntryChangeMonitor (keys As IEnumerable(Of String), Optional regionName As String = Nothing) As CacheEntryChangeMonitorParameters
- keys
- IEnumerable<String>
The unique identifiers for cache entries to monitor.
- regionName
- 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.
Returns
A change monitor that monitors cache entries in the cache.
Remarks
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.
