From d0e96368a2a08b694d5abebd34f193a32fdedb39 Mon Sep 17 00:00:00 2001
From: Janne Valkealahti <janne.valkealahti@gmail.com>
Date: Fri, 10 Apr 2015 11:39:16 +0100
Subject: [PATCH] More content and sample

---
 img/statechart0.png | Bin 0 -> 4822 bytes
 index.html          |  82 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 81 insertions(+), 1 deletion(-)
 create mode 100644 img/statechart0.png

diff --git a/img/statechart0.png b/img/statechart0.png
new file mode 100644
index 0000000000000000000000000000000000000000..18d97d9f1e4f8c607685a6c470c2098154986b04
GIT binary patch
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diff --git a/index.html b/index.html
index a2b234fe..abd14b7d 100644
--- a/index.html
+++ b/index.html
@@ -16,12 +16,22 @@ badges:
 
 {% capture billboard_description %}
 
-Spring Statemachine is a framework for application developers to use state machine concepts with Spring.
+Spring Statemachine is a framework for application developers to use state machine concepts with Spring applications.
 
 {% endcapture %}
 
 {% capture main_content %}
 
+Spring Statemachine aims to provide following features:
+
+* Easy to use flat one level state machine for simple use cases.
+* Hierarchical state machine structure to ease complex state configuration.
+* State machine regions to provide even more complex state configurations.
+* Usage of triggers, transitions, guards and actions.
+* Type safe configuration adapter.
+* State machine event listeners.
+* Spring IOC integration to associate beans with a state machine.
+
 State machines are powerful because behaviour is always guaranteed to be consistent and relatively easily debugged due to ways how operational rules are written in stone when machine is started. Idea is that your application is and may exist in a finite number of states and then something happens which takes your application from one state to the next. What will drive a state machine are triggers which are either based on an events or timers.
 
 It is much easier to design high level logic outside of your application and then interact with a state machine with a various different ways. You will simple send interact with a state machine by sending event, listening what a state machine does or simply request a current state.
@@ -31,6 +41,76 @@ It is much easier to design high level logic outside of your application and the
 
 {% include download_widget.md %}
 
+Following sample should give an idea how statemachine is configured and used. Assuming we have states **STATE1**, **STATE2** and events **EVENT1**, **EVENT2**.
+
+<img class="styled-image" src="img/statechart0.png" alt="Statechart" title="Statechart"/>
+
+```java
+static enum States {
+    STATE1, STATE2
+}
+
+static enum Events {
+    EVENT1, EVENT2
+}
+```
+
+```java
+@Configuration
+@EnableStateMachine
+static class Config1 extends EnumStateMachineConfigurerAdapter<States, Events> {
+
+    @Override
+    public void configure(StateMachineStateConfigurer<States, Events> states)
+            throws Exception {
+        states
+            .withStates()
+                .initial(States.STATE1)
+                .states(EnumSet.allOf(States.class));
+    }
+
+    @Override
+    public void configure(StateMachineTransitionConfigurer<States, Events> transitions)
+            throws Exception {
+        transitions
+            .withExternal()
+                .source(States.STATE1).target(States.STATE2)
+                .event(Events.EVENT1)
+                .and()
+            .withExternal()
+                .source(States.STATE2).target(States.STATE1)
+                .event(Events.EVENT2);
+    }
+}
+```
+
+```java
+@WithStateMachine
+static class MyBean {
+
+    @OnTransition(target = "STATE1")
+    void toState1() {
+    }
+
+    @OnTransition(target = "STATE2")
+    void toState2() {
+    }
+}
+```
+
+```java
+static class MyApp {
+
+    @Autowired
+    StateMachine<States, Events> stateMachine;
+
+    void doSignals() {
+        stateMachine.sendEvent(Events.EVENT1);
+        stateMachine.sendEvent(Events.EVENT2);
+    }
+}
+```
+
 {% endcapture %}
 
 {% capture related_resources %}