Patientenliste aktualisieren Button

src/main/java/de/uniluebeck/mi/projmi6/controller/PatientTablesController.java

@@ -245,13 +245,18 @@ public class PatientTablesController{
 
 
     public void updatePatientsFromDb(){
+            if(this.loadPatientTask != null && this.loadPatientTask.isRunning()) {
+                System.out.println("Patienten werden bereits geladen.");
+                return;
+            }
+
+            btnPatRefresh.setDisable(true);
 
-        //if(!loadPatientsTask.isRunning()) {
-            lblTablePatientEmpty.setText("Daten werden geladen...");
             tblPatientOverview.setItems(null);
 
             mainController.increaseParallelTaskCount();
 
+            lblTablePatientEmpty.setText("Liste wird geladen...");
 
             Task<List<Patient>>loadPatientsTask = new Task<List<Patient>>(){
 
@@ -263,32 +268,41 @@ public class PatientTablesController{
                 @Override
                 protected void succeeded() {
                     super.succeeded();
+                    btnPatRefresh.setDisable(false);
+                    lblTablePatientEmpty.setText("Liste ist leer.");
                     tblPatientOverview.setItems(FXCollections.observableArrayList(this.getValue()));
-                    lblTablePatientEmpty.setText("Es sind keine Patienten in der Datenbank");
                     mainController.decreaseParallelTaskCount();
-                    System.out.println("Patientenlsite erfolgreich aus Task geladen!");
                 }
 
                 @Override
                 protected void failed() {
                     super.failed();
+                    btnPatRefresh.setDisable(false);
+                    lblTablePatientEmpty.setText("Laden fehlgeschlagen!");
                     mainController.decreaseParallelTaskCount();
                     tblPatientOverview.setItems(null);
-                    lblTablePatientEmpty.setText("Ein Fehler ist aufgetreten: "+this.getException());
                     if(getException()!=null){
                         getException().printStackTrace();
                     }
                 }
             };
+            this.loadPatientTask = loadPatientsTask;
 
             Thread thread = new Thread(loadPatientsTask);
             thread.setDaemon(true);
             thread.start();
-       // }
     }
 
 
+    private Task loadPatientTask = null;
+
+    @FXML
+    private Button btnPatRefresh;
 
+    @FXML
+    private void clickedRefreshPatient(){
+        updatePatientsFromDb();
+    }
 
     private ObjectBinding<Patient> patientObjectBinding = null;
 

src/main/resources/patient_tables.fxml

@@ -17,6 +17,8 @@
                             <items>
                                 <Button fx:id="btnPatCreate" text="Neuen _Patient erstellen" onAction="#clickedCreatePatient" />
                                 <Button fx:id="btnPatEdit" text="Patient _bearbeiten"  onAction="#clickedEditPatient"/>
+                                <Pane HBox.hgrow="ALWAYS" />
+                                <Button fx:id="btnPatRefresh" text="Liste aktualisieren"  onAction="#clickedRefreshPatient"/>
                             </items>
                         </ToolBar>
                         <TableView fx:id="tblPatientOverview" editable="true" tableMenuButtonVisible="true" VBox.vgrow="ALWAYS">