# Class ProcessInstanceTree

OptimaJet.Workflow.PostgreSQL.ProcessInstanceTree

Namespace: [OptimaJet.Workflow.PostgreSQL](https://api.workflowengine.io/postgresql/OptimaJet.Workflow.PostgreSQL/)

```csharp
public class ProcessInstanceTree : DbObject<ProcessInstanceTreeItem>
```

## Type Hierarchy

-   [DbObject<ProcessInstanceTreeItem>](https://api.workflowengine.io/postgresql/OptimaJet.Workflow.PostgreSQL/DbObject-TEntity/)
    -   ProcessInstanceTree Current type

## Constructors

`public ProcessInstanceTree(string schemaName, int commandTimeout)` 

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `schemaName` | `String` |  |
| `commandTimeout` | `Int32` |  |

## Methods

`public Task<List<IProcessInstanceTreeItem>> GetProcessTreeItemsByRootProcessId(NpgsqlConnection connection, Guid rootProcessId)` 

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `connection` | `NpgsqlConnection` |  |
| `rootProcessId` | `Guid` |  |

### Returns

| Type | Description |
| --- | --- |
| `Task<IProcessInstanceTreeItem>` |  |

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