IDurableOrchestrationContext.WaitForExternalEvent Method
Definition
Important
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Overloads
| WaitForExternalEvent(String) |
Waits asynchronously for an event to be raised with name |
| WaitForExternalEvent(String, TimeSpan, CancellationToken) |
Waits asynchronously for an event to be raised with name |
| WaitForExternalEvent<T>(String, TimeSpan, CancellationToken) |
Waits asynchronously for an event to be raised with name |
| WaitForExternalEvent<T>(String) |
Waits asynchronously for an event to be raised with name |
| WaitForExternalEvent<T>(String, TimeSpan, T, CancellationToken) |
Waits asynchronously for an event to be raised with name |
WaitForExternalEvent(String)
Waits asynchronously for an event to be raised with name name.
public System.Threading.Tasks.Task WaitForExternalEvent (string name);abstract member WaitForExternalEvent : string -> System.Threading.Tasks.TaskPublic Function WaitForExternalEvent (name As String) As TaskParameters
- name
- String
The name of the event to wait for.
Returns
A durable task that completes when the external event is received.
Remarks
External clients can raise events to a waiting orchestration instance using RaiseEventAsync(String, String, Object) with the object parameter set to null.
Applies to
WaitForExternalEvent(String, TimeSpan, CancellationToken)
Waits asynchronously for an event to be raised with name name.
public System.Threading.Tasks.Task WaitForExternalEvent (string name, TimeSpan timeout, System.Threading.CancellationToken cancelToken = default);abstract member WaitForExternalEvent : string * TimeSpan * System.Threading.CancellationToken -> System.Threading.Tasks.TaskPublic Function WaitForExternalEvent (name As String, timeout As TimeSpan, Optional cancelToken As CancellationToken = Nothing) As TaskParameters
- name
- String
The name of the event to wait for.
- timeout
- TimeSpan
The duration after which to throw a TimeoutException.
- cancelToken
- CancellationToken
The CancellationToken to use for cancelling timeout's internal timer.
Returns
A durable task that completes when the external event is received.
Exceptions
The external event was not received before the timeout expired.
Remarks
External clients can raise events to a waiting orchestration instance using RaiseEventAsync(String, String, Object) with the object parameter set to null.
Applies to
WaitForExternalEvent<T>(String, TimeSpan, CancellationToken)
Waits asynchronously for an event to be raised with name name and returns the event data.
public System.Threading.Tasks.Task<T> WaitForExternalEvent<T> (string name, TimeSpan timeout, System.Threading.CancellationToken cancelToken = default);abstract member WaitForExternalEvent : string * TimeSpan * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'T>Public Function WaitForExternalEvent(Of T) (name As String, timeout As TimeSpan, Optional cancelToken As CancellationToken = Nothing) As Task(Of T)Type Parameters
- T
Any serializeable type that represents the JSON event payload.
Parameters
- name
- String
The name of the event to wait for.
- timeout
- TimeSpan
The duration of time to wait for the event.
- cancelToken
- CancellationToken
The CancellationToken to use for cancelling timeout's internal timer.
Returns
A durable task that completes when the external event is received, or throws a timeout exception"/> if the timeout expires.
Exceptions
The external event was not received before the timeout expired.
Remarks
External clients can raise events to a waiting orchestration instance using RaiseEventAsync(String, String, Object).
Applies to
WaitForExternalEvent<T>(String)
Waits asynchronously for an event to be raised with name name and returns the event data.
public System.Threading.Tasks.Task<T> WaitForExternalEvent<T> (string name);abstract member WaitForExternalEvent : string -> System.Threading.Tasks.Task<'T>Public Function WaitForExternalEvent(Of T) (name As String) As Task(Of T)Type Parameters
- T
Any serializeable type that represents the JSON event payload.
Parameters
- name
- String
The name of the event to wait for.
Returns
A durable task that completes when the external event is received.
Remarks
External clients can raise events to a waiting orchestration instance using RaiseEventAsync(String, String, Object).
Applies to
WaitForExternalEvent<T>(String, TimeSpan, T, CancellationToken)
Waits asynchronously for an event to be raised with name name and returns the event data.
public System.Threading.Tasks.Task<T> WaitForExternalEvent<T> (string name, TimeSpan timeout, T defaultValue, System.Threading.CancellationToken cancelToken = default);abstract member WaitForExternalEvent : string * TimeSpan * 'T * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'T>Public Function WaitForExternalEvent(Of T) (name As String, timeout As TimeSpan, defaultValue As T, Optional cancelToken As CancellationToken = Nothing) As Task(Of T)Type Parameters
- T
Any serializeable type that represents the JSON event payload.
Parameters
- name
- String
The name of the event to wait for.
- timeout
- TimeSpan
The duration of time to wait for the event.
- defaultValue
- T
If specified, the default value to return if the timeout expires before the external event is received. Otherwise, a timeout exception will be thrown instead.
- cancelToken
- CancellationToken
The CancellationToken to use for cancelling timeout's internal timer.
Returns
A durable task that completes when the external event is received, or returns the value of defaultValue
if the timeout expires.
Remarks
External clients can raise events to a waiting orchestration instance using RaiseEventAsync(String, String, Object).
Applies to
Azure SDK for .NET