How to i18n "selectOneListbox" Components?

Hi,
I'm using a "selectOneListbox" Component in my JSF page.
<h:selectOneListbox id="mySelection" value="#{myBean.mySelection}" size="1">
<f:selectItems value="#{myBean.myList}" />
</h:selectOneListbox>
The "getMyList" Method of the bean "myBean" returns a java.util.List Implementation containing "javax.faces.model.SelectItem" objects.
This works fine so far. And now for the problem:
As by now the labels displayed on the screen are taken directly from the "label" properties of the "SelectItems" objects. Let's say the labels are "Kuchen", "Kekse" and "S��es". Now that's fine for german speaking users of the site but english speaking user probably would like to select from "Cakes", "Cookies" and "Sweets".
So, the question is:
How to perform i18n on the listbox labels?
So far the only way of doing this I found has been to do the translation inside the Bean "myBean". But that approach is actually bad, because it means to implement view related code into the model which is not the idea of a framework like JSF.
Does anyone have a nice solution to this? I do not reckon that no one ever needed this, allthough I found nothing regarding this problem on the net. Probably I'm just missing something.
Thanks for your help,
regards

I do not understand your concern about the separating the backing bean and the "view". I claim that from the high level perspective of your application, the backing beans are part of the view technology. They are tightly coupled to JSF and the specific pages you have in your application. When the next best thing after JSF comes you will need to discard your backing beans and replace them with the appropriate technology. If you have business logic in your backing beans you are making it too difficult to re-use your business logic.
If you want to look at a JEE application with JSF as an MVC pattern, the model are the EJB entity beans or POJOs if you are using a lightweight framework. The controller is your collection of business logic classes which might live behind a session EJB or in a container like Spring. Then the pages and the code supporting the pages are the view.
So I do not see an issue with having a backing bean which looks up the localized values for a drop down in a resource bundle. Perhaps you have some business logic intermixed with your backing beans. I would encourage you to separate them out from the backing beans that are coupled with the pages in that case. The tightly coupled backers will be discarded when the view technology is swapped out. The business logic beans will be re-usable.

Similar Messages

How to pass/share components between different JPanels/Container

Dear Friends,
I know here a lot Java Guru, I met a problem below.
How can I pass components between different JPanels??
here, ListPanelMain.java is main,
When I click a tree node in splitPane, I can see all its children on the right splitpane, but I hope they can be seen on another Panel called "ListRightPane.java"
How to do it??
Why cannot pass??
[1]. main Program:
package swing.com.test.test;
import javax.swing.JFrame;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import java.io.Serializable;
import swing.com.test.test.ListPanel;
import java.awt.GridLayout;
public class ListPanelMain implements java.io.Serializable{
     private JFrame frame;
     * Launch the application
     * @param args
     public static void main(String args[]) {
          try {
               ListPanelMain window = new ListPanelMain();
               window.frame.setVisible(true);
          } catch (Exception e) {
               e.printStackTrace();
     * Create the application
     public ListPanelMain() {
          initialize();
     * Initialize the contents of the frame
     private void initialize() {
          frame = new JFrame("FileTreePanelMain");
          frame.setBounds(100, 100, 900, 675);
     //     FieTreePanelComm      ftreecomm                = new      FieTreePanelComm();
          ListPanel                ftree                     = new      ListPanel("C:\\");
//          ListAllFile           ftree                     = new      ListAllFile("C:\\");
     //     FileTreePanelText      fileTreePanelText      = new      FileTreePanelText(ftreecomm);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          final JPanel panel = new JPanel();
          panel.setLayout(new GridLayout(0, 2));
          frame.getContentPane().add(panel, BorderLayout.CENTER);
     //     final JSplitPane splitPane = new JSplitPane();
     //     frame.getContentPane().add(splitPane, BorderLayout.CENTER);
     //     splitPane.setLeftComponent(ftree);
          panel.add(ftree);
          final ListRightPanel listRightPanel = new ListRightPanel(ftree);
          //splitPane.setRightComponent(listRightPanel);
          panel.add(listRightPanel);
     frame.addWindowListener(new WindowAdapter() {
     public void windowClosing(WindowEvent e) {
     System.exit(0);
     frame.pack();
     frame.setVisible(true);
[2]. Program 2:
package swing.com.test.test;
//File System Tree
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.io.File;
import java.util.Iterator;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListPanel extends JPanel implements Serializable{
protected JTree fileTree;
private FileSystemModel fileSystemModel;
private JTextArea ltextArea = new JTextArea();
protected JTextArea fileDetailsTextArea = new JTextArea();
private String str = "";
     public String getlTextArea() {
               //textArea.getText();
               return str;
     public String setlTextArea(String ta) {
               ltextArea.setText(ta);
               str = ta;
               return str;
public ListPanel(String directory) {
//super("JTree FileSystem Viewer");
               setLayout(new BorderLayout());
               final JPanel panel = new JPanel();
               panel.setLayout(new BorderLayout());
          add(panel, BorderLayout.CENTER);
fileDetailsTextArea.setEditable(false);
fileSystemModel = new FileSystemModel(new File(directory));
fileTree = new JTree(fileSystemModel);
fileTree.setEditable(true);
fileTree.addTreeSelectionListener(new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent event) {
System.out.println("1. What we save is: getlTextArea() =" + getlTextArea() );
File file = (File) fileTree.getLastSelectedPathComponent();
fileDetailsTextArea.setText(getFileDetails(file));
final ListRightPanel lrp = new ListRightPanel(this);
lrp.textArea.setText(getFileDetails(file));
setlTextArea(getFileDetails(file));
System.out.println("2. What we save is: getlTextArea() =" + getlTextArea() );
          final JSplitPane splitPane = new JSplitPane();
          panel.add(splitPane, BorderLayout.CENTER);
          final JPanel panel_1 = new JPanel();
          splitPane.setLeftComponent(panel_1);
          panel_1.add(new JScrollPane(fileTree));
          final JPanel panel_2 = new JPanel();
          splitPane.setRightComponent(panel_2);
          panel_2.add(new JScrollPane(fileDetailsTextArea));
setVisible(true);
private String getFileDetails(File file) {
if (file == null)
return "";
StringBuffer buffer = new StringBuffer();
if (file.listFiles()!=null){
     for (int i=0; i< file.listFiles().length; i++){
     buffer.append(((file.listFiles())) + "\n");
     System.out.println("List all files");
return buffer.toString();
public static void main(String args[]) {
new ListPanel("c:\\");
class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
public Object getRoot() {
return root;
public Object getChild(Object parent, int index) {
File directory = (File) parent;
String[] children = directory.list();
return new TreeFile(directory, children[index]);
public int getChildCount(Object parent) {
File file = (File) parent;
if (file.isDirectory()) {
String[] fileList = file.list();
if (fileList != null)
return file.list().length;
return 0;
public boolean isLeaf(Object node) {
File file = (File) node;
return file.isFile();
public int getIndexOfChild(Object parent, Object child) {
File directory = (File) parent;
File file = (File) child;
String[] children = directory.list();
for (int i = 0; i < children.length; i++) {
if (file.getName().equals(children[i])) {
return i;
return -1;
public void valueForPathChanged(TreePath path, Object value) {
File oldFile = (File) path.getLastPathComponent();
String fileParentPath = oldFile.getParent();
String newFileName = (String) value;
File targetFile = new File(fileParentPath, newFileName);
oldFile.renameTo(targetFile);
File parent = new File(fileParentPath);
int[] changedChildrenIndices = { getIndexOfChild(parent, targetFile) };
Object[] changedChildren = { targetFile };
fireTreeNodesChanged(path.getParentPath(), changedChildrenIndices, changedChildren);
private void fireTreeNodesChanged(TreePath parentPath, int[] indices, Object[] children) {
TreeModelEvent event = new TreeModelEvent(this, parentPath, indices, children);
Iterator iterator = listeners.iterator();
TreeModelListener listener = null;
while (iterator.hasNext()) {
listener = (TreeModelListener) iterator.next();
listener.treeNodesChanged(event);
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
private class TreeFile extends File {
public TreeFile(File parent, String child) {
super(parent, child);
public String toString() {
return getName();
[3]. Program 3:
package swing.com.test.test;
import java.awt.BorderLayout;
import java.io.File;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListRightPanel extends JPanel implements TreeSelectionListener, Serializable{
     protected JTextArea textArea;
//     protected ListAllFile laf;
private String str = "";
          public String getlTextArea() {
                    //textArea.getText();
                    return str;
          public String setlTextArea(String ta) {
                    str = ta;
                    return str;
     * Create the panel
     public ListRightPanel(ListPanel laff) {
          super();
          setLayout(new BorderLayout());
          final JPanel panel = new JPanel();
          panel.setLayout(new BorderLayout());
          add(panel, BorderLayout.CENTER);
          textArea = new JTextArea();
final String st = laff.getlTextArea();
System.out.println("####################################");
System.out.println("st=" + st);
     laff.fileTree.addTreeSelectionListener(new TreeSelectionListener() {
     public void valueChanged(TreeSelectionEvent event) {
     //laff.textArea.setText(getFileDetails(file));
          textArea.setText(getlTextArea());
     System.out.println("ListRightPanel Was Invoked from ListPanel!!getlTextArea() =" + getlTextArea() );
     System.out.println("st=" + st);
          panel.add(textArea, BorderLayout.CENTER);
     public void valueChanged(TreeSelectionEvent e){};
It is runnable program, just compile and run it in Console is ok,
Regards
Sunny

Thnaks, code post again, see
[1]. package swing.com.test.test;
import javax.swing.JFrame;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import java.io.Serializable;
import swing.com.test.test.ListPanel;
import java.awt.GridLayout;
public class ListPanelMain implements java.io.Serializable{
     private JFrame frame;
      * Launch the application
      * @param args
     public static void main(String args[]) {
          try {
               ListPanelMain window = new ListPanelMain();
               window.frame.setVisible(true);
          } catch (Exception e) {
               e.printStackTrace();
      * Create the application
     public ListPanelMain() {
          initialize();
      * Initialize the contents of the frame
     private void initialize() {
          frame = new JFrame("FileTreePanelMain");
          frame.setBounds(100, 100, 900, 675);
     //     FieTreePanelComm      ftreecomm                = new      FieTreePanelComm();
          ListPanel                ftree                     = new      ListPanel("C:\\");
//          ListAllFile           ftree                     = new      ListAllFile("C:\\");
     //     FileTreePanelText      fileTreePanelText      = new      FileTreePanelText(ftreecomm);
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          final JPanel panel = new JPanel();
          panel.setLayout(new GridLayout(0, 2));
          frame.getContentPane().add(panel, BorderLayout.CENTER);
     //     final JSplitPane splitPane = new JSplitPane();
     //     frame.getContentPane().add(splitPane, BorderLayout.CENTER);
     //     splitPane.setLeftComponent(ftree);
          panel.add(ftree);
          final ListRightPanel listRightPanel = new ListRightPanel(ftree);
          //splitPane.setRightComponent(listRightPanel);
          panel.add(listRightPanel);
            frame.addWindowListener(new WindowAdapter() {
                 public void windowClosing(WindowEvent e) {
                     System.exit(0);
             frame.pack();
             frame.setVisible(true);
}[2] Program 2
package swing.com.test.test;
//File System Tree
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.io.File;
import java.util.Iterator;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.JPanel;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListPanel extends JPanel implements Serializable{
protected JTree fileTree;
private FileSystemModel fileSystemModel;
private JTextArea ltextArea = new JTextArea();
protected JTextArea fileDetailsTextArea = new JTextArea();
private String str = "";
     public String getlTextArea() {
               //textArea.getText();
                  return str;
     public String setlTextArea(String ta) {
               ltextArea.setText(ta);
               str = ta;
                  return str;
public ListPanel(String directory) {
    //super("JTree FileSystem Viewer");
               setLayout(new BorderLayout());
               final JPanel panel = new JPanel();
               panel.setLayout(new BorderLayout());
              add(panel, BorderLayout.CENTER);
    fileDetailsTextArea.setEditable(false);
    fileSystemModel = new FileSystemModel(new File(directory));
    fileTree = new JTree(fileSystemModel);
    fileTree.setEditable(true);
    fileTree.addTreeSelectionListener(new TreeSelectionListener() {
      public void valueChanged(TreeSelectionEvent event) {
        System.out.println("1. What we save is: getlTextArea() =" + getlTextArea() );
        File file = (File) fileTree.getLastSelectedPathComponent();
        fileDetailsTextArea.setText(getFileDetails(file));
        final ListRightPanel lrp = new ListRightPanel(this);
        lrp.textArea.setText(getFileDetails(file));
        setlTextArea(getFileDetails(file));
        System.out.println("2. What we save is: getlTextArea() =" + getlTextArea() );
          final JSplitPane splitPane = new JSplitPane();
          panel.add(splitPane, BorderLayout.CENTER);
          final JPanel panel_1 = new JPanel();
          splitPane.setLeftComponent(panel_1);
          panel_1.add(new JScrollPane(fileTree));
          final JPanel panel_2 = new JPanel();
          splitPane.setRightComponent(panel_2);
          panel_2.add(new JScrollPane(fileDetailsTextArea));
    setVisible(true);
private String getFileDetails(File file) {
    if (file == null)
      return "";
    StringBuffer buffer = new StringBuffer();
    if (file.listFiles()!=null){
         for (int i=0; i< file.listFiles().length; i++){
         buffer.append(((file.listFiles())) + "\n");
     System.out.println("List all files");
return buffer.toString();
public static void main(String args[]) {
new ListPanel("c:\\");
class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
public Object getRoot() {
return root;
public Object getChild(Object parent, int index) {
File directory = (File) parent;
String[] children = directory.list();
return new TreeFile(directory, children[index]);
public int getChildCount(Object parent) {
File file = (File) parent;
if (file.isDirectory()) {
String[] fileList = file.list();
if (fileList != null)
return file.list().length;
return 0;
public boolean isLeaf(Object node) {
File file = (File) node;
return file.isFile();
public int getIndexOfChild(Object parent, Object child) {
File directory = (File) parent;
File file = (File) child;
String[] children = directory.list();
for (int i = 0; i < children.length; i++) {
if (file.getName().equals(children[i])) {
return i;
return -1;
public void valueForPathChanged(TreePath path, Object value) {
File oldFile = (File) path.getLastPathComponent();
String fileParentPath = oldFile.getParent();
String newFileName = (String) value;
File targetFile = new File(fileParentPath, newFileName);
oldFile.renameTo(targetFile);
File parent = new File(fileParentPath);
int[] changedChildrenIndices = { getIndexOfChild(parent, targetFile) };
Object[] changedChildren = { targetFile };
fireTreeNodesChanged(path.getParentPath(), changedChildrenIndices, changedChildren);
private void fireTreeNodesChanged(TreePath parentPath, int[] indices, Object[] children) {
TreeModelEvent event = new TreeModelEvent(this, parentPath, indices, children);
Iterator iterator = listeners.iterator();
TreeModelListener listener = null;
while (iterator.hasNext()) {
listener = (TreeModelListener) iterator.next();
listener.treeNodesChanged(event);
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
private class TreeFile extends File {
public TreeFile(File parent, String child) {
super(parent, child);
public String toString() {
return getName();
[3] Program 3:
package swing.com.test.test;
import java.awt.BorderLayout;
import java.io.File;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTree;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import java.io.Serializable;
public class ListRightPanel extends JPanel implements TreeSelectionListener, Serializable{
     protected JTextArea textArea;
//     protected ListAllFile laf;
    private String str = "";
          public String getlTextArea() {
                    //textArea.getText();
                       return str;
          public String setlTextArea(String ta) {
                    str = ta;
                       return str;
      * Create the panel
     public ListRightPanel(ListPanel laff) {
          super();
          setLayout(new BorderLayout());
          final JPanel panel = new JPanel();
          panel.setLayout(new BorderLayout());
          add(panel, BorderLayout.CENTER);
          textArea = new JTextArea();
        final String st = laff.getlTextArea();
        System.out.println("####################################");
        System.out.println("st=" + st);
         laff.fileTree.addTreeSelectionListener(new TreeSelectionListener() {
             public void valueChanged(TreeSelectionEvent event) {
               //laff.textArea.setText(getFileDetails(file));
                  textArea.setText(getlTextArea());
                 System.out.println("ListRightPanel Was Invoked from ListPanel!!getlTextArea() =" + getlTextArea() );
                 System.out.println("st=" + st);
          panel.add(textArea, BorderLayout.CENTER);
       public void valueChanged(TreeSelectionEvent e){};
}You can try this one, thanks again
sunny

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JScrollPane pane = new JScrollPane(aTextPane);
pane.setRowHeaderView(aLineNumberComponent);my requirement is i've a editor & lineno component as textpanes and added to scrollpane & when asked to print it should print the lineno component which resides in scrollpane's row header & the editor textpane which is the main view in the scrollpane. how can i achieve this?
i'd would appreciate any suggestions & codes given.
thanx in advance.

After adding/removing components to/from a panel try:
panel.revalidate();
panel.repaint() // sometimes this is also needed, I'm
not sure whyI'm not certain, but I think that panel.revalidate() implicitly calls repaint() only if something actually changed in the layout. If nothing changed, it sees no reason to repaint; hence, if something changed in appearance but not in layout, you have to repaint it yourself.
Or something like that. I'm no expert. ;)

How to run sapui5 components in a native dynpro?

Hello,
I like to run sapui5 components in a native Dynpro - is that principle possible? For first example i want to implement the description from this site http://scn.sap.com/docs/DOC-48653 (How to Create and Run a Simple SAPUI5 Application from Scratch within 20 Seconds) via HTML-View in a native ABAP-Dynpro:
This is, what I have done till now:
- Dynpro with CustomContainer
- PBO for dynpro: create object instanz for cl_gui_custom_container and cl_gui_html_viewer
- Tx SMW0 - WebRepository: HTML-Template for my site (html code see example above)
- Tx SMW0 - WebRepository: Binäry data for sapui5 javascript file (here I used "sap-ui-core-all.js")
When I now start my report do display the html file, the html viewer works, but the button "Hello World" doesn't appear?
Here my questions:
- is it principle possible to use sapui5 components in a custom container with html viewer in a native ABAP-Dynpro?
- what ist the best way (where ist best place) for storing the needed sapui5 files?
- which sapui5 files are needed?
At the end, I only want to show charts e.g. with the MaKit-control in a custom container with html viewer!
Thanks a lot for every hint or tip!
Best regards
martin

After adding/removing components to/from a panel try:
panel.revalidate();
panel.repaint() // sometimes this is also needed, I'm
not sure whyI'm not certain, but I think that panel.revalidate() implicitly calls repaint() only if something actually changed in the layout. If nothing changed, it sees no reason to repaint; hence, if something changed in appearance but not in layout, you have to repaint it yourself.
Or something like that. I'm no expert. ;)

How Do I see components

I have a series of components that I assign various values (text) to. We added a TabNavigator to reduce the vertical space that was being taken and now the components within it are null and won't accept the values that they did before the TabNavigator was added.
I"m assuming that with the TabNavigator comes a different visibility. Within the mxml:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:DHSComp="components.*"
initialize="setInitAccessible();"
applicationComplete="setInitLanguage();"
backgroundColor="#dedacf"
layout="absolute"
borderStyle="inset"
borderThickness="2"
paddingLeft="10"
paddingRight="10"
paddingTop="10"
paddingBottom="10"
height="100%"
width="100%"
verticalScrollPolicy="on">
I don't know of an event that is after "applicationComplete". The call is to:
<mx:Script>
    <![CDATA[
        public function setInitLanguage():void {
            resetEnglish();
        public function setInitAccessible():void {
            getXMLURL();
            accessibleSet();
    ]]>
</mx:Script>
Within the reset:
public function resetEnglish():void {
    // all "get" are in DHSclasses/FSLangEnglish.as
    pageSNAPText = English.getPageSNAPText();
... // these work OK
    if (currentState != "Result") {
        resetEnglishBase();                        // scripts/FSLangEngBase.as
The problem comes up in the next call. The prior one and the next one are both scripts included in the mxml file:
public function resetEnglishBase():void {
    // reset inputform (base) to English
    // all "get" are in DHSclasses/FSLangEnglish.as
    householdInformationPanel.title = English.getHouseholdInformationLabel();
    householdInformationPanel.toolTip = English.getHouseholdInformationTT();
The "householdInformationPanel.title" shows as a null when the TabNavigator is included and not when it is not.
The question becomes how do I get the title to work when a TabNavigator is included?

You, sir, are a gentleman and a scholar. That worked - thanks!

How to expose UI components in a managed bean?

Dear all
I created a jsf page without exposing UI components in managed beans.
And the page is created successfully.
But now I want to expose UI components in managed beans again
How to make this??
Please help

select your component in Jdeveloper main menu, in the property inspector find Binding property -->click Edit to bind this component to a managed bean property.

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