update example in the quick start archetype

easy-rules-archetype/src/main/resources/archetype-resources/src/main/java/HelloWorldRule.java

@@ -27,28 +27,17 @@ import org.jeasy.rules.annotation.Action;
 import org.jeasy.rules.annotation.Condition;
 import org.jeasy.rules.annotation.Rule;
 
-@Rule(name = "Hello World rule", description = "Say Hello to only duke's friends")
+@Rule(name = "Hello World rule", description = "Always say hello world")
 public class HelloWorldRule {
 
-    /**
-     * The user input which represents the data that the rule will operate on.
-     */
-    private String input;
-
     @Condition
-    public boolean checkInput() {
+    public boolean when() {
-        //The rule should be applied only if the user's response is yes (duke friend)
+        return true;
-        return input.equalsIgnoreCase("yes");
     }
 
     @Action
-    public void sayHelloToDukeFriend() throws Exception {
+    public void then() throws Exception {
-        //When rule conditions are satisfied, prints 'Hello duke's friend!' to the console
+        System.out.println("hello world");
-        System.out.println("Hello duke's friend!");
-    }
-
-    public void setInput(String input) {
-        this.input = input;
     }
 
 }

easy-rules-archetype/src/main/resources/archetype-resources/src/main/java/Launcher.java

@@ -23,46 +23,25 @@
  */
 package ${packageName};
 
+import org.jeasy.rules.api.Facts;
+import org.jeasy.rules.api.Rules;
 import org.jeasy.rules.api.RulesEngine;
+import org.jeasy.rules.core.DefaultRulesEngine;
 
-import java.util.Scanner;
-
-import static org.jeasy.rules.core.RulesEngineBuilder.aNewRulesEngine;
-
-/**
- * Launcher class of the Hello World sample.
- */
 public class Launcher {
 
     public static void main(String[] args) {
 
-        Scanner scanner = new Scanner(System.in);
+        // create facts
-        System.out.println("Are you a friend of duke? [yes/no]:");
+        Facts facts = new Facts();
-        String input = scanner.nextLine();
 
-        /**
+        // create rules
-         * Declare the rule
+        Rules rules = new Rules();
-         */
+        rules.register(new HelloWorldRule());
-        HelloWorldRule helloWorldRule = new HelloWorldRule();
 
-        /**
+        // create a rules engine and fire rules on known facts
-         * Set business data to operate on
+        RulesEngine rulesEngine = new DefaultRulesEngine();
-         */
+        rulesEngine.fire(rules, facts);
-        helloWorldRule.setInput(input.trim());
-
-        /**
-         * Create a rules engine and register the business rule
-         */
-        RulesEngine rulesEngine = aNewRulesEngine()
-                .named("Hello world rules engine")
-                .build();
-
-        rulesEngine.registerRule(helloWorldRule);
-
-        /**
-         * Fire rules
-         */
-        rulesEngine.fireRules();
 
     }
 }