RichTree is not rendered properly when created in Managed Bean

Question

HI,
I am trying to create af:tree in managed bean using RichTree. It is not rendering the tree nodes properly. It is only showing the nodes, node text is missing. I am using EL expression to show the value in node element. But when I am creating the af:tree in jspx page, it is working properly.
Following is the code,
JSPX Page ------------------------------------------------------------>
<?xml version='1.0' encoding='windows-1252'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.0"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=windows-1252"/>
<f:view>
<af:document id="document1" title="Tree Test">
<af:form id="form1">
<af:panelGroupLayout layout="horizontal">
<af:spacer width="50" height="50"/>
<af:panelGroupLayout layout="vertical">
<h1>RCF Tree Component Test</h1>
<af:spacer height="10" width="10"/>
<h3>ADF Tree in JSPX</h3>
<af:spacer height="5" width="10"/>
<af:tree binding="#{treeTest.tree}" var="node" value="#{treeTest.treeModel}" rowSelection="multiple" rowDisclosureListener="#{treeTest.toggle}" selectionListener="#{treeTest.TableSelect}" inlineStyle="border:1px solid black;">
<f:facet name="nodeStamp">
<af:panelGroupLayout>
<af:image source="#{node.icon}" inlineStyle="margin-right:3px; vertical-align:middle; height:14px; width:16px;"/>
<af:outputText value="#{node.description}"/>
</af:panelGroupLayout>
</f:facet>
</af:tree>
</af:panelGroupLayout>
<af:panelGroupLayout layout="vertical">
<af:spacer height="65" width="10"/>
<h3>ADF Tree in UI Bean</h3>
<af:spacer height="5" width="10"/>
<af:tree binding="#{treeTest.treeInBean}" inlineStyle="border:1px solid black;"/>
</af:panelGroupLayout>
</af:panelGroupLayout>
</af:form>
</af:document>
</f:view>
<!--oracle-jdev-comment:auto-binding-backing-bean-name:treeTest-->
</jsp:root>
Managed Bean ------------------------------------------------------------>
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.el.ExpressionFactory;
import javax.el.ValueExpression;
import javax.faces.context.FacesContext;
import oracle.adf.view.rich.component.rich.data.RichTree;
import oracle.adf.view.rich.component.rich.layout.RichPanelGroupLayout;
import oracle.adf.view.rich.component.rich.output.RichImage;
import oracle.adf.view.rich.component.rich.output.RichOutputText;
import org.apache.myfaces.trinidad.event.RowDisclosureEvent;
import org.apache.myfaces.trinidad.event.SelectionEvent;
import org.apache.myfaces.trinidad.model.ChildPropertyTreeModel;
import org.apache.myfaces.trinidad.model.TreeModel;
public class TreeTest {
private RichTree tree = new RichTree();
private TreeModel treeModel;
final public static String ROOT_DIR = ".";
private RichTree treeInBean = new RichTree();
public TreeTest() {
List nodes = new ArrayList();
FileNode rootNode = buildFileTree(ROOT_DIR);
nodes.add(rootNode);
treeModel = new ChildPropertyTreeModel(nodes, "children") ;
private void createTreeInBean(List rootNode){
ChildPropertyTreeModel l_model = new ChildPropertyTreeModel();
l_model.setChildProperty("children");
l_model.setWrappedData(rootNode );
treeInBean.setValue( l_model);
treeInBean.setRowSelection("multiple");
treeInBean.setVar( "node" );
RichOutputText comp = new RichOutputText();
FacesContext l_context = FacesContext.getCurrentInstance();
ExpressionFactory l_factory = l_context.getApplication().getExpressionFactory();
ValueExpression l_expression = l_factory.createValueExpression( FacesContext.getCurrentInstance().getELContext(),
"#{node.description}", String.class );
comp.setValueExpression( "value", l_expression );
RichImage img = new RichImage();
img.setInlineStyle("margin-right:3px; vertical-align:middle; height:14px; width:16px;");
ValueExpression l_expressionImg = l_factory.createValueExpression( FacesContext.getCurrentInstance().getELContext(),
"#{node.icon}", String.class );
//img.setValueExpression( "source", l_expressionImg );
img.setSource("images/img1.png");
RichPanelGroupLayout layout = new RichPanelGroupLayout();
//layout.getChildren().add( img);
//layout.getChildren().add( comp);
//treeInBean.getChildren().add( layout);
treeInBean.setNodeStamp( layout);
treeInBean.getNodeStamp().getChildren().add( img );
treeInBean.getNodeStamp().getChildren().add( comp );
private static FileNode buildFileTree(String dirpath) {
File root = new File(dirpath);
return visitAllDirsAndFiles(root);
private static FileNode visitAllDirsAndFiles(File dir) {
FileNode parentNode = process(dir);
if (dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
FileNode childNode = visitAllDirsAndFiles(new File(dir, children));
parentNode.getChildren().add(childNode);
return parentNode;
public static FileNode process(File dir) {
FileNode node = new FileNode(dir);
return node;
public void TableSelect(SelectionEvent p_event) {
System.out.println(" Selection Event = " + p_event);
RichTree l_tree = (RichTree)p_event.getSource();
System.out.println("Display Row = " + l_tree.getSelectedRowKeys());
TreeModel model = ((ChildPropertyTreeModel)l_tree.getValue());
for (Object key : l_tree.getSelectedRowKeys()) {
model.setRowKey(key);
System.out.println("Model Data = " + ((FileNode)model.getRowData()));
public void toggle(RowDisclosureEvent p_rowDisclosureEvent) {
System.out.println(" Dislosure Event = " + p_rowDisclosureEvent);
public void setTree(RichTree tree) {
          this.tree = tree;
public RichTree getTree() {
return tree;
public void setTreeModel(TreeModel treeModel) {
this.treeModel = treeModel;
public TreeModel getTreeModel() {
return treeModel;
public void setTreeInBean(RichTree treeInBean) {
this.treeInBean = treeInBean;
public RichTree getTreeInBean() {
List nodes = new ArrayList();
FileNode rootNode = buildFileTree(ROOT_DIR);
nodes.add(rootNode);
createTreeInBean(nodes);
return treeInBean;
File Node Class-------------------------------------------------------------
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
public class FileNode {
private Collection children;
private boolean nodeSelected;
private File file;
public FileNode(File file) {
this.file = file;
children = new ArrayList();
public boolean isDir() {
return file.isDirectory();
public boolean isFile() {
return file.isFile();
public String getDescription() {
return file.getName();
public Collection getChildren() {
return children;
public String getIcon(){
if(children.size() == 0){
return "images/img1.png";
} else {
return "images/img3.png";
public int getChildCount() {
if (children == null)
return 0;
else
          return children.size();
public void setNodeSelected(boolean nodeSelected) {
this.nodeSelected = nodeSelected;
public boolean isNodeSelected() {
return nodeSelected;
public void setFile(File file) {
this.file = file;
public File getFile() {
return file;
@Override
public String toString() {
return getDescription();
With Regards,
Sujay

Answer 1

HI,
When you see the output of the code, you will find 2 different trees one with proper label and another with out labels. This tree is showing the folder structor. When i am creating the tree in managed bean, the EL expression of the component added in nodeStamp is not getting evaluated. To make sure that same component is stamped as nodeStamp, i tried by setting default value in that component, and it is showing the same hard coded value.
But the same EL expression is getting evaluated for the tree in JSPX page.
Sujay