refactor: annotation-based dependency-injection

src/main/java/ch/zhaw/gartenverwaltung/MyGardenController.java

@@ -1,5 +1,8 @@
 package ch.zhaw.gartenverwaltung;
 
+import ch.zhaw.gartenverwaltung.bootstrap.AfterInject;
+import ch.zhaw.gartenverwaltung.bootstrap.AppLoader;
+import ch.zhaw.gartenverwaltung.bootstrap.Inject;
 import ch.zhaw.gartenverwaltung.io.PlantList;
 import ch.zhaw.gartenverwaltung.models.Garden;
 import ch.zhaw.gartenverwaltung.io.HardinessZoneNotSetException;
@@ -28,19 +31,21 @@ import java.util.logging.Logger;
 public class MyGardenController {
     private static final Logger LOG = Logger.getLogger(MyGardenController.class.getName());
 
+    @Inject
+    AppLoader appLoader;
+    @Inject
     MainFXMLController mainController;
+    @Inject
     private Garden garden;
+    @Inject
     private PlantList plantList;
 
     @FXML
     private VBox myPlants_vbox;
 
+    @AfterInject
     @SuppressWarnings("unused")
-    public void injectDependencies(Garden garden, PlantList plantList, MainFXMLController mainController) {
-        this.garden = garden;
-        this.plantList = plantList;
-        this.mainController = mainController;
-
+    public void init() {
         garden.getPlantedCrops().addListener((observable, oldValue, newValue) -> {
             try {
                 createPlantView(newValue);
@@ -96,7 +101,7 @@ public class MyGardenController {
         return (event) -> {
             try {
                 Stage stage = new Stage();
-                if (mainController.loadSceneToStage("CropDetail.fxml", stage) instanceof CropDetailController controller) {
+                if (appLoader.loadSceneToStage("CropDetail.fxml", stage) instanceof CropDetailController controller) {
                     controller.setPlantFromCrop(crop);
                 }
                 stage.initModality(Modality.APPLICATION_MODAL);