How to achieve flexible workflow

[tll]

hi,
    I'm trying to implement flexible process which users can determine the next task dynamically. I have used the ActivityImpl#getOutgoingTransitions(), createOutgoingTransition(), etc. in our method. This method need to change and restore the the process definition each time. I think this method has some risk. If multi-users use the same process definition simultaneously, the process maybe crashed.

Is there some interface in Activiti that I can complete the task with specified “destinationTaskKey”?

Thanks!

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best regards,

tll

[trademak]

How many different tasks are we talking about? And are these tasks flexible as well, or do you have a fixed pool of 100 different tasks or so? You could do something with call activities and expressions on the calledElement to make your process flexible. If there are only a couple of tasks you could use the outgoing transitions to show a list of options to the user. Also, it's possible to use a form key expression to dynamically determine the task type. So a lot of possibilities.

Best regards,

[tll]

There are about ten tasks in total.
what is"form key expression" ?  Does that mean the TaskDefinitionKey of a task that defined in the process definition ".xml" file?
If so, how can I complete the current task by using the supplied complete() function? It only has a parameter " taskId". Maybe I could extend the complete() by adding another parameter "TaskDefinitionKey". Also I need to modify the corresponding source code in org.activiti.engine.impl.interceptor.Command.

[jbarrez]

My guess ( i think i posted this in the other thread to) is to work with expressions for the task name and form key, combined with exclusive gateways that check whether a new task needs to be created.