What does it mean when the engine is successfully initiated?

Answer 1

The engine had been successfully initiated, which meant that the engine had completed a series of preparatory operations and could start the subsequent work process normally. Different types of engines had different meanings of successful initialisation.

Take the work flow engine as an example. The work flow engine needs to deal with the content related to the core work flow when it is initialized. For example, in the design stage, the design of the process definition data is completed according to the business requirements, and the process order data is saved in the database. In the instantiating stage, the defined process data, order business data, organization structure data, task form data, and system dictionary data were combined to complete the state initialisation. When these steps were successfully completed, the work flow engine was successfully initialised, and the task information or task transmission route could be executed according to the established rule order.

For game engines such as FlaxEngine, the initialisation process involves resource integration and system support-related operations, such as the definition of global variables.(These global variables affect the system as a whole), complete the basic code of the engine and the settings of the corresponding service class, including determining whether the game engine is ready, whether the background is running, and other operations. It also defined the methods such as the log, path, window initialisation, as well as the usual actions related to the function call every frame when the game runs. When these operations were successfully completed, the game engine was successfully initialised, and the game-related operations could begin.

For Springboot-related process engines, such as those involving Activiti7, the success of their initializations was based on the correct loading and configuration of the relevant beans. For example, automatically scan the META-INT/spring.factories file under all packages through the @ EnableAutowergy annotation, load specific classes as beans, and then perform the configuration of the process engine in the class of MachineAutowergy. The data source and the relevant attributes in the Springboot configuration file will be projected and deployed into the engine. If these configuration processes are successfully completed, the process engine will be successfully initiated, and subsequent process related work can be carried out.