Programmatic schema builder

info

This functionality is available in Workflow Engine 13.3.0 and later.

With the Workflow Engine Builder, you can create workflow schemas programmatically without using a designer interface. To work with the Builder, you need to initialize the IProcessDefinitionBuilder interface:

IProcessDefinitionBuilder processDefinitionBuilder = ProcessDefinitionBuilder.Create("SchemeName");

IProcessDefinitionBuilder provides the necessary methods for creating workflow elements. After creating elements, you can set additional options. For example, to create a new activity, you can call the CreateActivity method with a name, then set the state, mark it as initial, and position it on the schema using coordinates.

processDefinitionBuilder
    .CreateActivity("InitialActivity")
    .State("Initial")
    .Initial()
    .EnableSetState()
    .EnableAutoSchemeUpdate()
    .SetX(320).SetY(220)
    .Ref(out ActivityDefinition activity1)
    .CreateActivity("FinalActivity")
    .State("Final")
    .Final()
    .EnableSetState()
    .EnableAutoSchemeUpdate()
    .SetX(520).SetY(220)
    .Ref(out ActivityDefinition activity2);

The Ref method allows you to obtain a reference to the created definition for further use. Similarly, you can create commands and transitions using the CreateCommand and CreateTransition methods, respectively.

processDefinitionBuilder
    .CreateCommand("Go")
    .Ref(out CommandDefinition goCommand)
    .CreateTransition("TransitionName", activity1, activity2)
    .Direct();

For a complete list of methods, refer to the API Reference.