ExecutionStrategy.ExecuteAsync Method
Definition
Important
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Overloads
ExecuteAsync<TState,TResult>(TState, Func<DbContext,TState,CancellationToken, Task<TResult>>, Func<DbContext,TState,CancellationToken,Task<ExecutionResult<TResult>>>, CancellationToken) |
Executes the specified asynchronous operation and returns the result. |
ExecuteAsync<TState,TResult>(Func<TState,CancellationToken,Task<TResult>>, Func<TState,CancellationToken,Task<ExecutionResult<TResult>>>, TState, CancellationToken) |
Executes the specified asynchronous operation and returns the result. |
ExecuteAsync<TState,TResult>(TState, Func<DbContext,TState,CancellationToken, Task<TResult>>, Func<DbContext,TState,CancellationToken,Task<ExecutionResult<TResult>>>, CancellationToken)
Executes the specified asynchronous operation and returns the result.
public virtual System.Threading.Tasks.Task<TResult> ExecuteAsync<TState,TResult> (TState state, Func<Microsoft.EntityFrameworkCore.DbContext,TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<TResult>> operation, Func<Microsoft.EntityFrameworkCore.DbContext,TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<TResult>>> verifySucceeded, System.Threading.CancellationToken cancellationToken = default);
public virtual System.Threading.Tasks.Task<TResult> ExecuteAsync<TState,TResult> (TState state, Func<Microsoft.EntityFrameworkCore.DbContext,TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<TResult>> operation, Func<Microsoft.EntityFrameworkCore.DbContext,TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<TResult>>>? verifySucceeded, System.Threading.CancellationToken cancellationToken = default);
abstract member ExecuteAsync : 'State * Func<Microsoft.EntityFrameworkCore.DbContext, 'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<'Result>> * Func<Microsoft.EntityFrameworkCore.DbContext, 'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<'Result>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
override this.ExecuteAsync : 'State * Func<Microsoft.EntityFrameworkCore.DbContext, 'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<'Result>> * Func<Microsoft.EntityFrameworkCore.DbContext, 'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<'Result>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
Public Overridable Function ExecuteAsync(Of TState, TResult) (state As TState, operation As Func(Of DbContext, TState, CancellationToken, Task(Of TResult)), verifySucceeded As Func(Of DbContext, TState, CancellationToken, Task(Of ExecutionResult(Of TResult))), Optional cancellationToken As CancellationToken = Nothing) As Task(Of TResult)
Type Parameters
- TState
The type of the state.
- TResult
The result type of the Task<TResult> returned by operation
.
Parameters
- state
- TState
The state that will be passed to the operation.
- operation
- Func<DbContext,TState,CancellationToken,Task<TResult>>
A function that returns a started task of type TResult
.
- verifySucceeded
- Func<DbContext,TState,CancellationToken,Task<ExecutionResult<TResult>>>
A delegate that tests whether the operation succeeded even though an exception was thrown.
- cancellationToken
- CancellationToken
A cancellation token used to cancel the retry operation, but not operations that are already in flight or that already completed successfully.
Returns
A task that will run to completion if the original task completes successfully (either the first time or after retrying transient failures). If the task fails with a non-transient error or the retry limit is reached, the returned task will become faulted and the exception must be observed.
Implements
Exceptions
The operation has not succeeded after the configured number of retries.
If the CancellationToken is canceled.
Remarks
See Connection resiliency and database retries for more information and examples.
Applies to
ExecuteAsync<TState,TResult>(Func<TState,CancellationToken,Task<TResult>>, Func<TState,CancellationToken,Task<ExecutionResult<TResult>>>, TState, CancellationToken)
Executes the specified asynchronous operation and returns the result.
public virtual System.Threading.Tasks.Task<TResult> ExecuteAsync<TState,TResult> (Func<TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<TResult>> operation, Func<TState,System.Threading.CancellationToken,System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<TResult>>> verifySucceeded, TState state, System.Threading.CancellationToken cancellationToken = default);
abstract member ExecuteAsync : Func<'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<'Result>> * Func<'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<'Result>>> * 'State * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
override this.ExecuteAsync : Func<'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<'Result>> * Func<'State, System.Threading.CancellationToken, System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Storage.ExecutionResult<'Result>>> * 'State * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result>
Public Overridable Function ExecuteAsync(Of TState, TResult) (operation As Func(Of TState, CancellationToken, Task(Of TResult)), verifySucceeded As Func(Of TState, CancellationToken, Task(Of ExecutionResult(Of TResult))), state As TState, Optional cancellationToken As CancellationToken = Nothing) As Task(Of TResult)
Type Parameters
- TState
The type of the state.
- TResult
The result type of the Task<TResult> returned by operation
.
Parameters
- operation
- Func<TState,CancellationToken,Task<TResult>>
A function that returns a started task of type TResult
.
- verifySucceeded
- Func<TState,CancellationToken,Task<ExecutionResult<TResult>>>
A delegate that tests whether the operation succeeded even though an exception was thrown.
- state
- TState
The state that will be passed to the operation.
- cancellationToken
- CancellationToken
A cancellation token used to cancel the retry operation, but not operations that are already in flight or that already completed successfully.
Returns
A task that will run to completion if the original task completes successfully (either the first time or after retrying transient failures). If the task fails with a non-transient error or the retry limit is reached, the returned task will become faulted and the exception must be observed.
Implements
Exceptions
Thrown if the operation has not succeeded after the configured number of retries.
Applies to
Entity Framework