DataCacheFailureNotificationCallback Delegate
[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Specifies the parameters required for a method to be invoked by a failure notification when the cache client misses cache notifications.
Namespace: Microsoft.Data.Caching
Assembly: ClientLibrary (in clientlibrary.dll)
Syntax
'Declaration
Public Delegate Sub DataCacheFailureNotificationCallback ( _
cacheName As String, _
nd As DataCacheNotificationDescriptor _
)
'Usage
Dim instance As New DataCacheFailureNotificationCallback(AddressOf HandlerMethod)
public delegate void DataCacheFailureNotificationCallback (
string cacheName,
DataCacheNotificationDescriptor nd
)
public delegate void DataCacheFailureNotificationCallback (
String^ cacheName,
DataCacheNotificationDescriptor^ nd
)
/** @delegate */
public delegate void DataCacheFailureNotificationCallback (
String cacheName,
DataCacheNotificationDescriptor nd
)
JScript supports the use of delegates, but not the declaration of new ones.
Parameters
- cacheName
The name of the cache associated with the missing notifications.
- nd
The DataCacheNotificationDescriptor object associated with the failure notification that invoked the delegate method.
Remarks
Failure notifications are triggered when the cache client misses one or more notifications. Similar to adding callbacks for cache notifications, adding a failure notification callback involves two steps. First, create a method that will be invoked when a failure notification is triggered. The method you invoke with the failure notification must accept the same parameters as this delegate. Second, add the failure notification callback using the AddFailureNotificationCallback method.
Note
In order for your application to use notifications, you need to enable them on a named cache. Use the notificationsEnabled parameter with the New-Cache or Set-CacheConfig commands. For more information, see Cache Administration with PowerShell (Velocity).