How to dynamically generate multiple child processes in Activiti?

In Activiti, multiple sub-process instances can be used to dynamically create multiple sub-processes. Here is one way to do it.

1. To begin with, define a sub-process calling task in the main process to trigger and control the generation and execution of sub-processes. The CallActivity task can be used to achieve this sub-process call.
2. In the main process, either JavaDelegate or ServiceTask can be utilized to implement the logic for calling subprocess tasks. Within this task, dynamic parameters can be set to call subprocesses, allowing for the dynamic generation of multiple subprocesses.
3. Tasks and logic that need to be executed within a sub-process can be defined within the sub-process.

By following the steps above, it is possible to dynamically generate multiple subprocesses. When the main process reaches a subprocess call task, parameters can be dynamically set as needed, then the subprocess can be called to create new instances. Each instance will execute its own tasks and logic independently, allowing for the dynamic generation of multiple subprocesses.

It is important to note that each subprocess instance is independent and has no direct association with each other. If you need to track and manage the execution of subprocesses in the main process, you can use the subprocess instance ID for correlation and querying.