“Completion event”

© Franck.Barbier@FranckBarbier.com

“Completion event” is a software case study, which is implemented in PauWare. PauWare is a Java engine for executing Harel's Statecharts in general.

Application Programming Interface -API-: Javadoc.

This case study aims at illustrating the notion of “completion event” in UML. A transition without a labeling event raises the problem of passing through such a transition while no explicit triggering is specified. PauWare automatically generates a (implicit) completion event when reaching an exit state (black plain circle inside a surrounding (bigger) circle). Note that the notion of “completion event” is not supported in SCXML.

• Java SE application as a Maven project Completion.PauWare2Web.zip 

• This application has been designed and tested by means of PauWare ver. 2.0 (a.k.a. PauWare2, Sept. 2021). This application also reuses PauWare2Web, a PauWare2 add-on, which allows the dynamic simulation of Harel's Statecharts in a Web browser. While PauWare2 is based on Java 9, PauWare2Web requires Java 11.
• After downloading Completion.PauWare2Web.zip , PauWare2 PauWare2.zip  and PauWare2Web PauWare2Web.zip  must be made accessible as Maven dependencies. PauWare2Web itself requires third-party libraries that are downloaded by Maven:
  • Java API for Processing JSON software is linked to PauWare2Web as a runtime library.
  • PlantUML Java software is linked to PauWare2Web as a runtime library.
    • Graphviz software (required by PlantUML) is a priori installed on Windows.
    • Graphviz software on macOS may be installed using Homebrew (see also here…).
  • Tyrus Java software is linked to PauWare2Web as a runtime library.
• Note that PauWare2Web can be bypassed in the code (no Web visualization then) by commenting/removing in Table_tennis.java what follows:

_Table_tennis_state_machine = new com.pauware.pauware_engine.Core.StateMachine(… /*, new com.pauware.pauware2web.PauWare2Web_client()*/);