InstanceStore.BeginTryCommand Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
A persistence provider implements this method, which determines whether a particular persistence command can be executed. If the command can be executed, executes the command asynchronously.
protected public:
virtual IAsyncResult ^ BeginTryCommand(System::Runtime::DurableInstancing::InstancePersistenceContext ^ context, System::Runtime::DurableInstancing::InstancePersistenceCommand ^ command, TimeSpan timeout, AsyncCallback ^ callback, System::Object ^ state);protected internal virtual IAsyncResult BeginTryCommand (System.Runtime.DurableInstancing.InstancePersistenceContext context, System.Runtime.DurableInstancing.InstancePersistenceCommand command, TimeSpan timeout, AsyncCallback callback, object state);abstract member BeginTryCommand : System.Runtime.DurableInstancing.InstancePersistenceContext * System.Runtime.DurableInstancing.InstancePersistenceCommand * TimeSpan * AsyncCallback * obj -> IAsyncResult
override this.BeginTryCommand : System.Runtime.DurableInstancing.InstancePersistenceContext * System.Runtime.DurableInstancing.InstancePersistenceCommand * TimeSpan * AsyncCallback * obj -> IAsyncResultProtected Friend Overridable Function BeginTryCommand (context As InstancePersistenceContext, command As InstancePersistenceCommand, timeout As TimeSpan, callback As AsyncCallback, state As Object) As IAsyncResultParameters
- context
- InstancePersistenceContext
The instance context.
- command
- InstancePersistenceCommand
The persistence command to be executed.
- timeout
- TimeSpan
The timeout value for the command execution.
- callback
- AsyncCallback
The asynchronous callback delegate that receives notification of the completion of the asynchronous operation.
- state
- Object
The state information.
Returns
The state of the asynchronous operation.
Remarks
If the command can be executed, the persistence provider calls relevant methods on the InstancePersistenceContext to provide the results of the command.
Warning
Even though this method is declared as virtual rather than abstract, there is no implementation. This method must be overridden in order to provide functionality.
