cfg.JtaProcessEngineConfiguration: To be used when the engine runs in standalone mode, with JTA transactions.Д®vent-listeners can only be declared on the process element, as a child-element of the extensionElements. See the Spring integration section for more information. : To be used when the process engine is used in a Spring environment. When using this, probably no additional configuration is needed (except when using for example the job executor or mail capabilities). The database will be created and dropped when the engine boots and shuts down. An H2 in-memory database is used by default. Flowable will take care of the transactions. cfg.StandaloneInMemProcessEngineConfiguration: this is a convenience class for unit testing purposes.

By default, the database will only be checked when the engine boots (and an exception is thrown if there is no Flowable schema or the schema version is incorrect). cfg.StandaloneProcessEngineConfiguration: the process engine is used in a standalone way. In case of rejection, an email is sent to the employee. This could of course be replaced by an email. In case of approval, we have to register the request in some external system, which is followed by a user task again for the original employee to notify him/her of the decision. In this case, the manager needs to approve or reject the request.Дepending on what the manager decides, the exclusive gateway (the diamond shape with the cross) will route the process instance to either the approval or the rejection path. This is a step in the process that a human user has to perform. ItвЂ™s the starting point of a process instance. The circle on the left is called a start event. how many times is a request started, but not finished), depending on the business goal. In some scenarios this could be valuable information (e.g. In the alternative case, a user could change his mind and cancel before submitting, yet the process instance would be there already. But by having it as input data for the process, a process instance is only really created when a real request has been made. Of course, this could be modeled as a separate first step in the process.

We assume the process is started by providing some information, such as the employee name, the amount of holiday requested and a description.

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