SCXML - Commons SCXML Guide

Commons SCXML Guide

This is a collection of notes about all things Commons SCXML, a scratch pad of sorts, aimed at noting down usages for the frequently needed bits of Commons SCXML and some related and interesting (to some of us) tidbits.

Introduction

State Chart XML (SCXML) is a general-purpose event-based state machine language that can be used in many ways.

SCXML documents - A five minute introduction to SCXML documents.
Commons SCXML - Using the Commons SCXML engine.

Trying out Commons SCXML

Contains notes about trying Commons SCXML and testing SCXML documents.

Standalone - Rev'ing the engine.

Core API

Contains notes about the core Commons SCXML APIs.

The first set of notes walks through the most common usage pattern, end-to-end.

SCXML Reader - Reading SCXML into the Commons SCXML Java object model.
Datamodel - Defining a datamodel and temporary variables.
Contexts and Evaluators - Plugging in the expression language for the document.
Executor - Instantiating an SCXML executor (engine).
Triggering events - Executing the event driven state machine.

Advanced API

Contains notes about Commons SCXML APIs for extending or altering document semantics.

Custom actions - Adding custom actions to the Commons SCXML object model.
Custom semantics - Changing the default semantics of the Commons SCXML engine for specialized uses.

Side-effects

Contains notes about non-primary uses for Commons SCXML.