refactor: annotation-based dependency-injection

src/main/java/ch/zhaw/gartenverwaltung/PlantsController.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.HardinessZoneNotSetException;
 import ch.zhaw.gartenverwaltung.models.PlantListModel;
 import ch.zhaw.gartenverwaltung.types.HardinessZone;
@@ -8,7 +11,6 @@ import ch.zhaw.gartenverwaltung.types.Seasons;
 import javafx.beans.property.ListProperty;
 import javafx.beans.property.SimpleListProperty;
 import javafx.collections.FXCollections;
-import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.geometry.Insets;
 import javafx.scene.control.*;
@@ -25,21 +27,18 @@ import java.util.logging.Logger;
 
 public class PlantsController {
     private static final Logger LOG = Logger.getLogger(PlantsController.class.getName());
+
+    @Inject
     private PlantListModel plantListModel;
-    private MainFXMLController mainController;
+    @Inject
+    private AppLoader appLoader;
+
     private Plant selectedPlant = null;
     private final HardinessZone DEFAULT_HARDINESS_ZONE = HardinessZone.ZONE_8A;
 
     // TODO: move to model
     private final ListProperty<Plant> plantListProperty = new SimpleListProperty<>(FXCollections.observableArrayList());
 
-    @SuppressWarnings("unused")
-    public void injectDependencies(PlantListModel plantListModel, MainFXMLController mainController) {
-        this.plantListModel =  plantListModel;
-        this.mainController = mainController;
-        init();
-    }
-
     @FXML
     private VBox seasons;
 
@@ -63,12 +62,11 @@ public class PlantsController {
 
     /**
      * open new window to select sow or harvest day to save the crop
-     * @param event event
      */
     @FXML
-    void selectSowDate(ActionEvent event) throws IOException {
+    void selectSowDate() throws IOException {
         Stage stage = new Stage();
-        if (mainController.loadSceneToStage("SelectSowDay.fxml", stage) instanceof SelectSowDayController controller) {
+        if (appLoader.loadSceneToStage("SelectSowDay.fxml", stage) instanceof SelectSowDayController controller) {
             controller.setSelectedPlant(selectedPlant);
         }
 
@@ -84,6 +82,8 @@ public class PlantsController {
      * create event listener for selected list entry and search by query
      * {@inheritDoc}
      */
+    @AfterInject
+    @SuppressWarnings("unused")
     public void init() {
         setListCellFactory();
         fillPlantListWithHardinessZone();
@@ -95,6 +95,7 @@ public class PlantsController {
         createFilterSeasons();
         createFilterHardinessZone();
         lookForSelectedListEntry();
+
         try {
             viewFilteredListBySearch();
         } catch (HardinessZoneNotSetException e) {