Struct Engine 

pub struct Engine { /* private fields */ }

Engine

Main BPMN execution engine.

Implementations

impl Engine

pub fn new() -> Self

Create a new engine

pub fn with_activity_factory(factory: Arc<dyn ActivityFactory>) -> Self

Create a new engine with custom activity factory

pub async fn start_process( &self, definition: ProcessDefinition, initial_variables: Option<HashMap<String, Value>>, ) -> Result<Arc<ProcessInstance>, EngineError>

Start a new process instance

Arguments

• definition - Process definition to execute
• initial_variables - Initial process variables

Returns

• Ok(ProcessInstance) - Created process instance
• Err(EngineError) - Engine error

pub async fn get_instance( &self, instance_id: &str, ) -> Option<Arc<ProcessInstance>>

Get a process instance by ID

Trait Implementations

impl Debug for Engine

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Engine

fn default() -> Self

Returns the “default value” for a type.