Document monitoring and boot

- Relates to #263

spring-statemachine-core/src/main/java/org/springframework/statemachine/monitor/AbstractStateMachineMonitor.java

@@ -16,6 +16,7 @@
 package org.springframework.statemachine.monitor;
 
 import org.springframework.statemachine.StateMachine;
+import org.springframework.statemachine.action.Action;
 import org.springframework.statemachine.transition.Transition;
 
 /**
@@ -31,4 +32,8 @@ public abstract class AbstractStateMachineMonitor<S, E> implements StateMachineM
 	@Override
 	public void transition(StateMachine<S, E> stateMachine, Transition<S, E> transition, long duration) {
 	}
+
+	@Override
+	public void action(StateMachine<S, E> stateMachine, Action<S, E> action, long duration) {
+	}
 }

spring-statemachine-core/src/test/java/org/springframework/statemachine/docs/DocsConfigurationSampleTests9.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.statemachine.docs;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.statemachine.StateMachine;
+import org.springframework.statemachine.action.Action;
+import org.springframework.statemachine.config.EnableStateMachine;
+import org.springframework.statemachine.config.StateMachineConfigurerAdapter;
+import org.springframework.statemachine.config.builders.StateMachineConfigurationConfigurer;
+import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
+import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
+import org.springframework.statemachine.monitor.AbstractStateMachineMonitor;
+import org.springframework.statemachine.monitor.StateMachineMonitor;
+import org.springframework.statemachine.transition.Transition;
+
+public class DocsConfigurationSampleTests9 {
+
+// tag::snippetA[]
+	@Configuration
+	@EnableStateMachine
+	public class Config1 extends StateMachineConfigurerAdapter<String, String> {
+
+		@Override
+		public void configure(StateMachineConfigurationConfigurer<String, String> config)
+				throws Exception {
+			config
+				.withMonitoring()
+					.monitor(stateMachineMonitor());
+		}
+
+		@Override
+		public void configure(StateMachineStateConfigurer<String, String> states) throws Exception {
+			states
+				.withStates()
+					.initial("S1")
+					.state("S2");
+		}
+
+		@Override
+		public void configure(StateMachineTransitionConfigurer<String, String> transitions) throws Exception {
+			transitions
+				.withExternal()
+					.source("S1")
+					.target("S2")
+					.event("E1");
+		}
+
+		@Bean
+		public StateMachineMonitor<String, String> stateMachineMonitor() {
+			return new TestStateMachineMonitor();
+		}
+	}
+// end::snippetA[]
+
+// tag::snippetB[]
+	public class TestStateMachineMonitor extends AbstractStateMachineMonitor<String, String> {
+
+		@Override
+		public void transition(StateMachine<String, String> stateMachine, Transition<String, String> transition, long duration) {
+		}
+
+		@Override
+		public void action(StateMachine<String, String> stateMachine, Action<String, String> action, long duration) {
+		}
+	}
+// end::snippetB[]
+
+}