# Interface IProcessRestorer

OptimaJet.Workflow.Core.Runtime.ProcessRestoring.IProcessRestorer

Provides a customization point for process recovery after runtime restart.

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

```csharp
public interface IProcessRestorer
```

## Methods

`bool NeedCustomRestore(string schemeCode, ProcessStatus status)` 

Indicates whether a process instance should be handled by a custom restore decision during recovery.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `schemeCode` | `String` | The scheme code of the process being restored. |
| `status` | `ProcessStatus` | The status assigned to the process before restore begins (currently either [ProcessStatus.Error](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/ProcessStatus/) or [ProcessStatus.Terminated](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Persistence/ProcessStatus/)). |

### Returns

| Type | Description |
| --- | --- |
| `Boolean` | [true](https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool) to apply custom restore logic using [IProcessRestorer.GetCustomRestoreDecision(ProcessInstance)](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.ProcessRestoring/IProcessRestorer/); otherwise [false](https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool) to use the default recovery behavior. |

### Remarks

Restorers are evaluated in registration order; the first implementation that returns [true](https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool) is used.

`RestoreDecision GetCustomRestoreDecision(ProcessInstance process)` 

Gets the custom restore decision for a process selected for custom recovery.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `process` | `ProcessInstance` | The process instance to inspect before recovery continues. |

### Returns

| Type | Description |
| --- | --- |
| `RestoreDecision` | A [RestoreDecision](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.ProcessRestoring/RestoreDecision/) specifying the next restore action. Return [RestoreDecision.Default](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.ProcessRestoring/RestoreDecision/) or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) to keep default restore behavior. |

[Previous TypeSearcher](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.CodeAutocomplete/TypeSearcher/) [Next RestoreDecision](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Runtime.ProcessRestoring/RestoreDecision/)