# Class WorkflowTimerProcessor

OptimaJet.Workflow.Core.Runtime.Timers.WorkflowTimerProcessor

Provides timer processing for workflow runtime instances.

Namespace: [OptimaJet.Workflow.Core.Runtime.Timers](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.Timers/)

```csharp
public class WorkflowTimerProcessor
```

## Constructors

`public WorkflowTimerProcessor(WorkflowRuntime workflowRuntime, CancellationToken token)` 

Initializes a new instance of the [WorkflowTimerProcessor](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.Timers/WorkflowTimerProcessor/) class.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `workflowRuntime` | `WorkflowRuntime` | Workflow runtime used to execute timer actions and update process state. |
| `token` | `CancellationToken` | Cancellation token observed while processing timers. |

## Methods

`public Func<Task> GetTimerProcessorAsyncAction(IGrouping<Guid, WorkflowTimer> timersGroup)` 

Creates an asynchronous delegate that processes all timers in the specified group.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `timersGroup` | `IGrouping<Guid, WorkflowTimer>` | A collection of workflow timers grouped by root process identifier. |

### Returns

| Type | Description |
| --- | --- |
| `Func<Task>` | A delegate that can be executed to process all timers in `timersGroup` sequentially. |

### Remarks

The returned action orders timers by [WorkflowTimer.NextExecutionDateTime](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/WorkflowTimer/), locks each timer before execution, executes it through the runtime timer execution flow, and then removes the timer or resets process state as needed.

[Previous TimerCategory](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.Timers/TimerCategory/) [Next ProcessInstancesTree](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Subprocess/ProcessInstancesTree/)