2.2、Flowable API

Process Engine API和服务

引擎API是与Flowable交互的最常见方式。主要起点是ProcessEngine，可以按照配置部分中所述的几种方法创建它。从ProcessEngine，您可以获得包含工作流/ BPM方法的各种服务。ProcessEngine和服务对象是线程安全的，因此您可以为整个服务器保留对其中之一的引用。

ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

RuntimeService runtimeService = processEngine.getRuntimeService();
RepositoryService repositoryService = processEngine.getRepositoryService();
TaskService taskService = processEngine.getTaskService();
ManagementService managementService = processEngine.getManagementService();
IdentityService identityService = processEngine.getIdentityService();
HistoryService historyService = processEngine.getHistoryService();
FormService formService = processEngine.getFormService();
DynamicBpmnService dynamicBpmnService = processEngine.getDynamicBpmnService();

ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine()