improving documentation

docs/src/modules/java/pages/setup-and-dependency-injection.adoc

@@ -33,7 +33,7 @@ You can use `ServiceSetup` to disable components by overriding `disabledComponen
 include::example$doc-snippets/src/main/java/com/example/MyAppSetup.java[tag=disable-components]
 ----
 <1> Override `disabledComponents`
-<2> Provide a set of component classes to disable
+<2> Provide a set of component classes to disable depending on the configuration
 
 
 [#_dependency_injection]

samples/doc-snippets/src/main/java/com/example/MyAppSetup.java

@@ -13,13 +13,14 @@
 @Setup
 public class MyAppSetup implements ServiceSetup {
 
-  // end::disable-components[]
   private final Config appConfig;
 
   public MyAppSetup(Config appConfig) {
     this.appConfig = appConfig;
   }
 
+  // end::disable-components[]
+
   @Override
   public DependencyProvider createDependencyProvider() { // <1>
     final var myAppSettings =
@@ -40,7 +41,11 @@ public <T> T getDependency(Class<T> clazz) {
   // tag::disable-components[]
   @Override
   public Set<Class<?>> disabledComponents() { // <1>
-    return Set.of(MyComponent.class); // <2>
+    if (appConfig.getString("my-app.environment").equals("prod")) {
+      return Set.of(MyComponent.class); // <2>
+    } else {
+      return Set.of(); // <2>
+    }
   }
   // tag::pojo-dependency-injection[]
 }

samples/doc-snippets/src/main/resources/application.conf

@@ -1,3 +1,4 @@
 my-app {
   some-feature-flag = true
+  environment = "test"
 }