# Interface ITransitionConditionsBuilder

OptimaJet.Workflow.Core.Model.Builder.ITransitionConditionsBuilder

Provides fluent operations for configuring the [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) and [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions in [TransitionDefinition.Conditions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/).

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

```csharp
public interface ITransitionConditionsBuilder : ITransitionBuilder, IProcessDefinitionBuilder
```

## Type Hierarchy

-   ITransitionConditionsBuilder Current type
    -   Base interfaces
        -   [ITransitionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionBuilder/)
            -   [IProcessDefinitionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/IProcessDefinitionBuilder/)
    -   Derived interfaces
        -   [ITransitionConditionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionBuilder/)
        -   [ITransitionExpressionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionExpressionBuilder/)

## Methods

`ITransitionConditionBuilder CreateCondition(string conditionName)` 

Creates a new [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition on the current transition.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `conditionName` | `String` | The condition implementation name to assign to [ActionDefinitionReference.ActionName](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ActionDefinitionReference/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionBuilder` | An [ITransitionConditionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionBuilder/) for configuring the new condition. |

### Exceptions

| Type | Description |
| --- | --- |
| `TransitionConditionAlreadyExistsException` | A [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition with the specified `conditionName` already exists on the current transition. |

`ITransitionConditionBuilder CreateOrUpdateCondition(string conditionName)` 

Creates a new [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition or selects an existing matching condition for configuration.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `conditionName` | `String` | The condition implementation name stored in [ActionDefinitionReference.ActionName](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ActionDefinitionReference/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionBuilder` | An [ITransitionConditionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionBuilder/) for configuring the created or selected condition. |

`ITransitionConditionBuilder UpdateCondition(string conditionName)` 

Selects an existing [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition for configuration.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `conditionName` | `String` | The condition implementation name stored in [ActionDefinitionReference.ActionName](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ActionDefinitionReference/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionBuilder` | An [ITransitionConditionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionBuilder/) for configuring the selected condition. |

### Exceptions

| Type | Description |
| --- | --- |
| `TransitionConditionNotFoundException` | No [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition with the specified `conditionName` exists on the current transition. |

`ITransitionConditionsBuilder DeleteCondition(string conditionName)` 

Removes all [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions with the specified implementation name from the current transition.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `conditionName` | `String` | The condition implementation name stored in [ActionDefinitionReference.ActionName](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ActionDefinitionReference/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionConditionsBuilder DeleteConditionsAndExpressions()` 

Removes every [ConditionDefinition](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionDefinition/) from [TransitionDefinition.Conditions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) on the current transition.

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionConditionsBuilder DeleteConditions()` 

Removes all [ConditionType.Action](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions from [TransitionDefinition.Conditions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) on the current transition.

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionConditionsBuilder DeleteExpressions()` 

Removes all [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions from [TransitionDefinition.Conditions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) on the current transition.

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionExpressionBuilder CreateExpression(string expression)` 

Creates a new [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition on the current transition.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `expression` | `String` | The C# expression text to assign to [ConditionDefinition.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionDefinition/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionExpressionBuilder` | An [ITransitionExpressionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionExpressionBuilder/) for configuring the new condition. |

### Exceptions

| Type | Description |
| --- | --- |
| `TransitionConditionAlreadyExistsException` | A [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition with the specified `expression` already exists on the current transition. |

`ITransitionExpressionBuilder CreateOrUpdateExpression(string expression)` 

Creates a new [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition or selects an existing matching condition for configuration.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `expression` | `String` | The C# expression text stored in [ConditionDefinition.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionDefinition/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionExpressionBuilder` | An [ITransitionExpressionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionExpressionBuilder/) for configuring the created or selected condition. |

`ITransitionExpressionBuilder UpdateExpression(string expression)` 

Selects an existing [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition for configuration.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `expression` | `String` | The C# expression text stored in [ConditionDefinition.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionDefinition/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionExpressionBuilder` | An [ITransitionExpressionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionExpressionBuilder/) for configuring the selected condition. |

### Exceptions

| Type | Description |
| --- | --- |
| `TransitionConditionNotFoundException` | No [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) condition with the specified `expression` exists on the current transition. |

`ITransitionConditionsBuilder DeleteExpression(string expression)` 

Removes all [ConditionType.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionType/) conditions with the specified expression text from the current transition.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `expression` | `String` | The C# expression text stored in [ConditionDefinition.Expression](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConditionDefinition/). |

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionConditionsBuilder ConcatConditionsByAnd()` 

Sets [TransitionDefinition.ConditionsConcatenationType](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) to [ConcatenationType.And](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConcatenationType/) to combine the current transition's conditions using logical AND.

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

`ITransitionConditionsBuilder ConcatConditionsByOr()` 

Sets [TransitionDefinition.ConditionsConcatenationType](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/TransitionDefinition/) to [ConcatenationType.Or](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model/ConcatenationType/) to combine the current transition's conditions using logical OR.

### Returns

| Type | Description |
| --- | --- |
| `ITransitionConditionsBuilder` | The same [ITransitionConditionsBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionsBuilder/) instance for method chaining. |

[Previous ITransitionConditionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionConditionBuilder/) [Next ITransitionExpressionBuilder](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Model.Builder/ITransitionExpressionBuilder/)