The ProcessEngine is an aggregator of services.

• ProcessService
• ProcessDefinitionService
• API SignalService
• API MessageService

To obtain the an instance of the ProcessEngine you can either get the default ProcessEngine like this

    // Get the default the ProcessEngine
    ProcessEngine engine = ProcessEngine.getProcessEngine();

or a named ProcessEngine like this

    // TODO

The default ProcessEngine is a Java Bean controlled by the JBoss Microcontainer.