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[BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs (#4037)

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* [BREAKING] refactor: Decouple Checkpointing and Execution APIs

With this change, Checkpointing becomes an property of an IWorkflowExecutionEnvironment. This lets environments that are tightly-coupled to their CheckpointManager avoid needing to present APIs that would not work (e.g. taking in an InMemory CheckpointManager for Durable Tasks, for example)

* refactor: Normalize IsCheckpointingEnabled naming
This commit is contained in:
Jacob Alber
2026-02-19 11:41:35 -05:00
committed by GitHub
Unverified
parent fd4e6e816c
commit c73bd87503
34 changed files with 299 additions and 317 deletions
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dotnet/samples/GettingStarted/Workflows/Checkpoint/CheckpointWithHumanInTheLoop/Program.cs
+5 -5
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@@ -34,17 +34,17 @@ public static class Program
var checkpoints = new List<CheckpointInfo>();
// Execute the workflow and save checkpoints
await using Checkpointed<StreamingRun> checkpointedRun = await InProcessExecution
await using StreamingRun checkpointedRun = await InProcessExecution
.StreamAsync(workflow, new SignalWithNumber(NumberSignal.Init), checkpointManager)
;
await foreach (WorkflowEvent evt in checkpointedRun.Run.WatchStreamAsync())
await foreach (WorkflowEvent evt in checkpointedRun.WatchStreamAsync())
{
switch (evt)
{
case RequestInfoEvent requestInputEvt:
// Handle `RequestInfoEvent` from the workflow
ExternalResponse response = HandleExternalRequest(requestInputEvt.Request);
await checkpointedRun.Run.SendResponseAsync(response);
await checkpointedRun.SendResponseAsync(response);
break;
case ExecutorCompletedEvent executorCompletedEvt:
Console.WriteLine($"* Executor {executorCompletedEvt.ExecutorId} completed.");
@@ -77,14 +77,14 @@ public static class Program
CheckpointInfo savedCheckpoint = checkpoints[CheckpointIndex];
// Note that we are restoring the state directly to the same run instance.
await checkpointedRun.RestoreCheckpointAsync(savedCheckpoint, CancellationToken.None);
await foreach (WorkflowEvent evt in checkpointedRun.Run.WatchStreamAsync())
await foreach (WorkflowEvent evt in checkpointedRun.WatchStreamAsync())
{
switch (evt)
{
case RequestInfoEvent requestInputEvt:
// Handle `RequestInfoEvent` from the workflow
ExternalResponse response = HandleExternalRequest(requestInputEvt.Request);
await checkpointedRun.Run.SendResponseAsync(response);
await checkpointedRun.SendResponseAsync(response);
break;
case ExecutorCompletedEvent executorCompletedEvt:
Console.WriteLine($"* Executor {executorCompletedEvt.ExecutorId} completed.");