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Enum based Combobox

cmbSablonSecim = new ComboBox<>();
cmbSablonSecim.setItems(EnumSablonSecim.values());
My combo box --> TUMU,GRAFIK,DAGILIM
I want fill my combobox with Enum->islemAdi
Combobox --> Tümü,Grafik,Dağılım (Enum->islemAdi)
public enum EnumSablonSecim {
TUMU(0, "Tümü"),
GRAFIK(1, "Grafik"),
DAGILIM(2, "Dağılım")
;
private final Integer islemKodu;
private final String islemAdi;
private EnumSablonSecim(Integer islemKodu, String islemAdi) {
this.islemKodu = islemKodu;
this.islemAdi = islemAdi;
}
public Integer getIslemKodu() {
return islemKodu;
}
public String getIslemAdi() {
ResourceBundle messages = I18n.getInstance(this.getClass());
if (messages.containsKey(islemAdi)) {
return messages.getString(islemAdi);
} else {
return islemAdi;
}
}
public static EnumSablonSecim get(Integer islemKodu) {
for (EnumSablonSecim enumSablonSecim : EnumSablonSecim.values()) {
if (enumSablonSecim.islemKodu == islemKodu) {
return enumSablonSecim;
}
}
return null;
}
}
My combobox must return (islemAdi).is it possible or not? Thank you...

ComboBox::setItemLabelGenerator
Are you asking if you can show the islemAdi field as the label in the combo box?
You can specify code to generate a label used for displaying each item in your enum. Call ComboBox::setItemLabelGenerator. Pass a method reference for your getter. Vaadin then calls this method as needed to display each item.
cmbSablonSecim.setItemLabelGenerator(EnumSablonSecim::getIslemAdi);
See Showing a List of Data with Data Providers in the manual.

TableView doesn't refresh

I've got a project written in JavaFX and I'm trying to get a refresh on a tableview without result.
I've googled around and tried some examples I've found but it still doesn't work.
I populate a tableview with information each row in this table can have new comments added to by double click on the row. The a new Tabpane is opened and the new comment can be added there. On close of this tabpane I'd like the one I clicked from to be refreshed.
I must be doing something wrong. I just don't know what.
In my StoreController
private void populateTableView(List<Store> stores) {
ObservableList<Store> data = FXCollections.observableArrayList(stores);
storeNumberColumn.setCellValueFactory(
new PropertyValueFactory<Store, String>("id"));
storePhoneColumn.setCellValueFactory(
new PropertyValueFactory<Store, String>("phoneNbr"));
chainColumn.setCellValueFactory(
new PropertyValueFactory<Store, String>("chainId"));
commentColumn.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Store, ImageView>, ObservableValue<String>>() {
#Override
public ObservableValue<String> call(TableColumn.CellDataFeatures<Store, ImageView> p) {
Integer numberOfComments = p.getValue().getCommentsCount();
ReadOnlyObjectWrapper wrapper = null;
if (numberOfComments == 0) {
wrapper = null;
} else if (numberOfComments == 1) {
wrapper = new ReadOnlyObjectWrapper(new ImageView(COMMENT_SINGLE_FLAG_SOURCE));
} else {
wrapper = new ReadOnlyObjectWrapper(new ImageView(COMMENT_DOUBLE_FLAG_SOURCE));
}
return wrapper;
}
});
storeTable.setItems(data);
sortTable(storeTable, missedColumn);
}
#FXML
public void handleTableAction(MouseEvent event) {
if (event.getClickCount() == 2) {
showNewCommentStage();
}
}
private void showNewCommentStage() {
initCommentController();
Store store
= storeTable.getSelectionModel().selectedItemProperty().getValue();
commentController.showNewStage(commentPane, store);
}
It seems like the call-function doesn't get called when the commentpane is closed.
CommentController
public void showNewStage(Pane pane, Store store) {
this.store = store;
initStage(pane);
windowHandler = new WindowHandler(stage);
effectHandler.playEffect(pane);
constructCommentHeaders();
List<Comment> comments;
comments = commentService.listByStoreId(store.getId());
populateCommentTable(comments);
}
Like I said I've tried a lot of the solutions found here on Stackoverflow but with no results. The Tableview doesn't refresh. The Stores and the Comments are in different database tables if that's important
Can someone point me in the right direction?
Thanks!
****EDIT****
The Store.class
public class Store extends CommentEntity {
private String id;
private String chainId;
private String phoneNbr;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getChainId() {
return chainId;
}
public void setChainId(String chainId) {
this.chainId = chainId;
}
public String getPhoneNbr() {
return phoneNbr;
}
public void setPhoneNbr(String phoneNbr) {
this.phoneNbr = phoneNbr;
}
#Override
public String toString() {
return "Store{" + "id=" + id + ", chainId=" + chainId + '}';
}
#Override
public String getCommentIdentifier() {
return id;
}
}
The CommentEntity.Class
public abstract class CommentEntity {
private int commentsCount;
public int getCommentsCount() {
return commentsCount;
}
public void setCommentsCount(int commentsCount) {
this.commentsCount = commentsCount;
}
public abstract String getCommentIdentifier();
}
Thank you for input, I hadn't even reflected over the ImageView / String.

Two issues:
First, you need to distinguish between the data the cells in your column are displaying, and the cells that actually display those data. The cellValueFactory determines the data that are displayed. The PropertyValueFactory is a cellValueFactory implementation that references a JavaFX Property, so when you call
storeNumberColumn.setCellValueFactory(new PropertyValueFactory<Store, String>("id"));
it effectively tells the cells in the storeNumberColumn to call the idProperty() method on the Store object in the current row to get the data for the cell. (If no such method exists, it will try to use getId() as a backup plan.)
By default, you get a cellFactory that displays text resulting from calling toString() on the data generated by the cellValueFactory. In the case where your data are simply Strings, this is usually what you need. In other cases, you often need to provide a cellFactory of your own to get the correct way to display the data.
In your case, the data for the commentColumn are simply the number of comments. You are going to display that by choosing an image based on that numeric value.
So you should have
TableColumn<Store, Number> commentColumn = new TableColumn<>("Comments");
For the cellValueFactory, you can just use
commentColumn.setCellValueFactory(new PropertyValueFactory<>("commentsCount"));
Then you need a cellFactory that displays the appropriate ImageView:
commentColumn.setCellFactory(new Callback<TableColumn<Store, Number>, new TableCell<Store, Number>>() {
#Override
public TableCell<Store, Number>() {
private ImageView imageView = new ImageView();
#Override
public void updateItem(Number numberOfComments, boolean empty) {
super.updateItem(count, empty) ;
if (empty) {
setGraphic(null);
} else {
if (numberOfComments.intValue() == 0) {
setGraphic(null);
} else if (numberOfComments.intValue() == 1) {
imageView.setImage(new Image(COMMENT_SINGLE_FLAG_SOURCE));
setGraphic(imageView);
} else {
imageView.setImage(new Image(COMMENT_DOUBLE_FLAG_SOURCE));
setGraphic(imageView);
}
}
}
}
});
The second issue is actually about the update. A TableView keeps its contents "live" by observing JavaFX properties that are provided by the cellValueFactory as ObservableValues. If the value might change while the table is displayed, you must provide an actual property that can be observed: using a ReadOnlyObjectWrapper is no good (because it's read only, so it's wrapped value will not change). The PropertyValueFactory will also return a ReadOnlyObjectWrapper if you do not have JavaFX property accessor methods (i.e. if it is only using getXXX() methods to access the data). So your model class must provide JavaFX Properties.
You can make an immediate fix to this by updating CommentEntity to use an IntegerProperty:
public abstract class CommentEntity {
private final IntegerProperty commentsCount = new SimpleIntegerProperty();
public final int getCommentsCount() {
return commentsCountProperty().get();
}
public final void setCommentsCount(int commentsCount) {
commentsCountProperty().set(commentsCount);
}
public IntegerProperty commensCountProperty() {
return commentsCount ;
}
public abstract String getCommentIdentifier();
}
I would also strongly recommend updating the Store class to use JavaFX Properties in a similar manner.

How to run two methods in sequence with the same button in javafx?

I'm trying to fill a listview with the artist and title of songs using the open() method.
To achieve this I created the artist and title ArrayLists and merged them using the create() method.
The problem is, when I try to run create() inside open() nothing happens. However, if I assign the create() method to a different button and click it after using the filechooser everything works fine.
So, I would like to know if it is possible to run the create() method after the open() method using only one button via fxml or regular java code.
public class PLController implements Initializable {
#Override
public void initialize(URL location, ResourceBundle resources) {
list.setItems(visibleList);
}
List<File> filelist = new ArrayList<File>();
ArrayList<String> title = new ArrayList<String>();
ArrayList<String> artist = new ArrayList<String>();
ObservableList<String> visibleList = FXCollections.observableArrayList();
#FXML
ListView<String> list;
#FXML
Button impButton;
public void create(){
for(int i = 0; i < title.size(); i++){
visibleList.add(artist.get(i) +" - " +title.get(i));
Collections.sort(visibleList);
}
}
public void handleMetadata(String key, Object value){
if (key.equals("title")){
title.add(value.toString());
}
if (key.equals("artist")){
artist.add(value.toString());
}
}
public void open(){
FileChooser chooser = new FileChooser();
filelist = chooser.showOpenMultipleDialog(impButton.getScene().getWindow());
for(File f:filelist){
try {
Media media = new Media(f.toURI().toURL().toString());
media.getMetadata().addListener(new MapChangeListener<String, Object>(){
#Override
public void onChanged(Change<? extends String, ? extends Object> change) {
if(change.wasAdded()) {
handleMetadata(change.getKey(), change.getValueAdded());
}
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
}
}create(); //Nothing happens
}

As others have pointed out, the Media object does not have its metadata initialized immediately. (It needs to read data from the URL and populate those metadata as it receives them.) That is why the metadata are exposed as an ObservableMap. When you reach the end of your open() method, it is highly unlikely that the metadata will have been initialized, so your create() method will not see any data at that point.
What you need to do is observe the map, and update the ListView once both the artist and title are available. The best way to do this, in my opinion, is to encapsulate the information you want into a separate class:
public class Video {
private final Media media ;
private final ReadOnlyStringWrapper artist = new ReadOnlyStringWrapper("Unknown");
private final ReadOnlyStringWrapper title = new ReadOnlyStringWrapper("Title");
public Video(File file) {
try {
this.media = new Media(file.toURI().toURL().toExternalForm());
artist.bind(Bindings.createStringBinding(() -> {
Object a = media.getMetadata().get("artist");
return a == null ? "Unknown" : a.toString();
}, media.getMetadata()));
title.bind(Bindings.createStringBinding(() -> {
Object t = media.getMetadata().get("title");
return t == null ? "Unknown" : t.toString();
}, media.getMetadata()));
}
catch (Exception e) {
throw new RuntimeException("Could not create Video for "+file, e);
}
}
public ReadOnlyStringProperty titleProperty() {
return title.getReadOnlyProperty();
}
public ReadOnlyStringProperty artistProperty() {
return artist.getReadOnlyProperty();
}
public final String getTitle() {
return title.get();
}
public final String getArtist() {
return artist.get();
}
public final Media getMedia() {
return media ;
}
}
Now you can create a ListView<Video> to display the videos. Use a cell factory to display the artist and the title in the format you want. You can make sure that the observable list fires updates when either the artist or title properties change, and you can keep it sorted via a SortedList.
#FXML
private ListView<Video> list ;
private ObservableList<Video> visibleList ;
public void initialize() {
visibleList = FXCollections.observableArrayList(
// make list fire updates when artist or title change:
v -> new Observable[] {v.artistProperty(), v.titleProperty()});
list.setItems(new SortedList<>(list, Comparator.comparing(this::formatVideo)));
list.setCellFactory(lv -> new ListCell<Video>() {
#Override
public void updateItem(Video item, boolean empty) {
super.updateItem(item, empty) ;
setText(formatVideo(item));
}
});
}
#FXML
private void open() {
FileChooser chooser = new FileChooser();
List<File> fileList = chooser.showOpenMultipleDialog(impButton.getScene().getWindow());
if (fileList != null) {
fileList.stream()
.map(Video::new)
.forEach(visibleList::add);
}
}
private String formatVideo(Video v) {
if (v == null) return "" ;
return String.format("%s - %s", v.getArtist(), v.getTitle());
}

Simply creating a Media object and assigning a listener to it won't fire the code in the listener. So the title list in your code remains empty. The create() method is called, but since you are iterating over an empty list, nothing actually happens.
Use a debugger or add some logging information in such cases.
Also, you should sort the list after the for loop, not every time you add an item.

How to define which property ListView should use to render

I have a java bean object list which I would like to display in ListView control. By default ListView uses toString method.
How can I define which property to use for rendering in ListView?
I want to achieve same functionality as in TableView can be achieved by PropertyValueFactory in this code:
#FXML
private TableView<Person> mainTableView;
//...
TableColumn<Person,String> personColumn = new TableColumn<>("Name");List
personColumn.setCellValueFactory(new PropertyValueFactory("name"));
mainTableView.getColumns().add(personColumn);
Edit
It looks like there is no easy(out of the box) solution. Based on code from James_D I created generic class to deal with the problem. It wraps PropertyValueFactory - note that PropertyValueFactory firstly looks for method [NAME]Property() trying to get observable, only when it is not found it tries to access standard bean properties.
public class PropertyValueFactoryWrapperCellFactory<T> implements Callback<ListView<T>, ListCell<T>> {
private final PropertyValueFactory<T, String> pvf;
public PropertyValueFactoryWrapperCellFactory(String propertyName) {
super();
pvf = new PropertyValueFactory(propertyName);
}
#Override
public ListCell<T> call(ListView<T> param) {
return new ListCell<T>() {
#Override
public void updateItem(T item, boolean empty) {
super.updateItem(item, empty);
textProperty().unbind();
if (item == null) {
return;
}
TableColumn.CellDataFeatures<T, String> cdf = new TableColumn.CellDataFeatures<>(null, null, item);
textProperty().bind(pvf.call(cdf));
}
};
}
}
Usage:
#FXML
private ListView<Person> mainListView;
//...
mainListView.setCellFactory(new PropertyValueFactoryWrapperCellFactory("name"));

Use a cell factory.
If the property is immutable, it's pretty straightforward:
ListView<MyDataType> listView = new ListView<>();
listView.setCellFactory(new Callback<ListView<MyDataType>, ListCell<MyDataType>>() {
#Override
public ListCell<MyDataType> call(ListView<MyDataType> lv) {
return new ListCell<MyDataType>() {
#Override
public void updateItem(MyDataType item, boolean empty) {
super.updateItem(item, empty);
if (item == null) {
setText(null);
} else {
// assume MyDataType.getSomeProperty() returns a string
setText(item.getSomeProperty());
}
}
};
}
});
If the property can change its value and the list view needs to update dynamically in response to these changes, you need to bind the textProperty of the list cell:
listView.setCellFactory(new Callback<ListView<MyDataType>, ListCell<MyDataType>>() {
#Override
public ListCell<MyDataType> call(ListView<MyDataType> lv) {
return new ListCell<MyDataType>() {
#Override
public void updateItem(MyDataType item, boolean empty) {
super.updateItem(item, empty);
textProperty().unbind();
if (item == null) {
setText(null);
} else {
// assumes MyDataType.someProperty() returns a StringProperty:
textProperty.bind(item.someProperty());
}
}
};
}
});

Binding String Property
This code allows you to choose what JavaFX property is displayed in a ListView. I use an anonymous class inside a lambda to add some clarity to what is happening. In this example:
Display - The underlying object behind the ListView
titleProperty - The JavaFX property to be displayed
listView.setCellFactory(
listview -> {
return new ListCell<Display>() {
#Override
public void updateItem(Display item, boolean empty) {
super.updateItem(item, empty);
textProperty().unbind();
if(item != null)
textProperty().bind(item.titleProperty());
else
setText(null);
}
};
}
);
Explanation
With this code, we are basically making a custom ListCell. When it is updated and the item it is display is null, we clear the display text. Otherwise, we set the text to be whatever the title property of our item is.
TL;DR :: Modified James_D's Solution
I based this on James_D's second example. I wanted to bind a SimpleStringProperty to be the displayed text in a ListView. James_D's solution worked great but didn't update when I deleted an object from the ObservableList in the ListView, so I modified it. I also thought having a cleaner lambda example would be good.

Wicket - Add tooltip to every cell in PropertyColumn

I really need your help by a wicket-problem.
I want to add a tooltip to all the rows(by mouse hover) in a PropertyColumn. But how can I do it? I've seen solutions with an Abstractcolumn. But I have to use a PropertyColumn because i need the propertyExpression and don't need the sortProperty.

One way is to modify the DataTable like this:
add(new DefaultDataTable("wicektid", null, null, 10) {
#Override
protected Item newCellItem(String id, int index, IModel model) {
Item item = super.newCellItem(id, index, model);
item.add(AttributeModifier.replace("title", "Your Title"));
return item;
}
#Override
protected Item newRowItem(String id, int index, IModel model) {
Item item = super.newRowItem(id, index, model);
item.add(AttributeModifier.replace("title", "Your Title"));
return item;
}
});
Here you have the control if you want the tooltip on whole rows or on individual cells.
If you want to do it in certain columns you can override populateItem in the column like this:
add(new PropertyColumn<>(){
#Override
public void populateItem(Item<ICellPopulator<T>> item, String componentId, IModel<T> rowModel) {
super.populateItem(item, componentId, rowModel);
}
});

I now have found the solution.
First thing, which is important to know is, that in the populateItem-Method, there has to be at least one object in it. For example a label. Because you can't add a string or a tooltip to a cell without something in it. So i had to put a label in it and added the string to that label. After that i've added a PrototipBehavior to the label:
public void populateItem(final Item cellItem, final String componentId, final IModel model) {
Long id = ((MyObject) model.getObject()).getId();
String desc = ((MyObject) model.getObject()).getDescription();
Label l = new Label(componentId, id + "");
l.add(new PrototipBehaviour(desc));
cellItem.add(l);
}