#Scheelite

Lightweight Java finite state machine library.

##Features

• Entry/exit actions
• Sub states
• Triggerless transitions
• Immutable state machine logic (no more than one instance needed)
• Final states
• Completion transition when a composite state is finished (reaches a final state)
• PlanUML diagram writer

##Concepts See http://en.wikipedia.org/wiki/UML_state_machine.

###Maven

Current version is 2.1.

<dependency>
    <groupId>com.headstartech.scheelite</groupId>
    <artifactId>scheelite-core</artifactId>
    <version>2.1.0.RELEASE</version>
</dependency>

<dependency>
    <groupId>com.headstartech.scheelite</groupId>
    <artifactId>scheelite-diagram</artifactId>
    <version>2.1.0.RELEASE</version>
</dependency>

##Changes

###2.1

• Explicit support for final states
• Completion transition when a composite state is finished (reaches a final state)
• PlantUML diagram writer

###2.0

New features

• Added support for getting state machine configuration from state machine instance.

Breaking changes

• Possibility to throw checked exceptions from states, actions and guards.
• Guard interface changed

##License

Scheelite is Open Source software released under the Apache 2.0 license.