# Class SchemeDefinition<T>

OptimaJet.Workflow.Core.Model.SchemeDefinition<T>

Carries an unparsed scheme together with its scheme code and stored-version metadata.

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

```csharp
public class SchemeDefinition<T> where T : class
```

## Constructors

`public SchemeDefinition(Guid id, Guid? rootSchemeId, string schemeCode, string rootSchemeCode, T scheme, bool isObsolete, List<string> allowedActivities, string startingTransition, string tenantId = null)` 

Initializes a new instance of the [SchemeDefinition<T>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/SchemeDefinition-T/) class with an unparsed scheme and stored-version data.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `id` | `Guid` | The identifier of the stored scheme version. |
| `rootSchemeId` | `Nullable<Guid>` | The identifier of the root process scheme version for a subprocess scheme, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) when no root scheme version is assigned. |
| `schemeCode` | `String` | The code that identifies the family of stored scheme versions. |
| `rootSchemeCode` | `String` | The code of the root process scheme for a subprocess scheme, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) when no separate root scheme is assigned. |
| `scheme` | `{T}` | The unparsed scheme. |
| `isObsolete` | `Boolean` | [true](https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool) when the stored scheme version is obsolete; otherwise, [false](https://learn.microsoft.com/dotnet/csharp/language-reference/builtin-types/bool). |
| `allowedActivities` | `List<String>` | The names of parent-process activities during which the subprocess may remain active. |
| `startingTransition` | `String` | The name of the transition that started the subprocess represented by this scheme. |
| `tenantId` | `String` | The tenant identifier that scopes the stored scheme version, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) for a shared scheme. |

`public SchemeDefinition(ProcessDefinition processDefinition, IWorkflowParser<T> parser, string tenantId = null)` 

Initializes a new instance of the [SchemeDefinition<T>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/SchemeDefinition-T/) class by serializing the supplied [ProcessDefinition](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ProcessDefinition/) and copying its scheme code and stored-version metadata. The tenant is supplied separately through `tenantId`.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `processDefinition` | `ProcessDefinition` | The parsed and built scheme to serialize and copy stored-version metadata from. |
| `parser` | `IWorkflowParser<T>` | The [IWorkflowParser<TSchemeMedium>](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Parser/IWorkflowParser-TSchemeMedium/) used to serialize `processDefinition` through [IWorkflowParser<TSchemeMedium>.SerializeToSchemeMedium(ProcessDefinition)](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Parser/IWorkflowParser-TSchemeMedium/). |
| `tenantId` | `String` | The tenant identifier that scopes the stored scheme version, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) for a shared scheme. |

## Properties

`public T Scheme { get; }` 

Gets the unparsed scheme.

`public string SchemeCode { get; set; }` 

Gets or sets the scheme code that identifies the family of stored scheme versions.

`public string RootSchemeCode { get; set; }` 

Gets or sets the scheme code of the root process for a subprocess scheme, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) when the scheme does not identify a separate root scheme.

`public Guid Id { get; }` 

Gets the identifier of this stored scheme version.

`public Guid? RootSchemeId { get; }` 

Gets the identifier of the root process scheme version for a subprocess scheme, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) when no root scheme version is assigned.

`public string TenantId { get; }` 

Gets the tenant identifier that scopes this stored scheme version, or [null](https://learn.microsoft.com/dotnet/csharp/language-reference/keywords/null) for a shared scheme.

`public List<string> AllowedActivities { get; set; }` 

Gets or sets the names of parent-process activities during which this subprocess may remain active.

`public string StartingTransition { get; set; }` 

Gets or sets the name of the transition that started the subprocess represented by this scheme.

`public bool IsObsolete { get; }` 

Gets a value indicating whether this stored scheme version is obsolete.

[Previous RuntimeStatus](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/RuntimeStatus/) [Next SerializedParameter](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/SerializedParameter/)