# Interface ITimerManager

OptimaJet.Workflow.Core.Runtime.ITimerManager

Defines services for initializing and managing workflow timers at runtime.

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

```csharp
public interface ITimerManager
```

## Properties

`bool IsSupportsMultiServer { get; }` 

Gets a value indicating whether this timer manager can be used in multi-server runtime deployments.

## Methods

`void Init(WorkflowRuntime runtime)` 

Initializes the timer manager for the specified workflow runtime.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `runtime` | `WorkflowRuntime` | The [WorkflowRuntime](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/WorkflowRuntime/) that owns the managed timers. |

`Task StartAsync()` 

Starts timer processing for the configured runtime.

### Returns

| Type | Description |
| --- | --- |
| `Task` | A task that represents the asynchronous start operation. |

`Task StopAsync()` 

Stops timer processing for the configured runtime.

### Returns

| Type | Description |
| --- | --- |
| `Task` | A task that represents the asynchronous stop operation. |

`Task ClearAndRegisterTimersAsync(ProcessInstance processInstance)` 

Clears currently registered timers and registers timers for the specified process instance.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `processInstance` | `ProcessInstance` | The process instance for which timers should be removed and (re)registered. |

### Returns

| Type | Description |
| --- | --- |
| `Task` | A task that represents the asynchronous operation. |

[Previous IRuntimeIdProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/IRuntimeIdProvider/) [Next IWorkflowActionProvider](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime/IWorkflowActionProvider/)