Dynamic UIX tree

Hi everybody, for the last couple of days i was trying to create a tree in UIX (with nodes and subnodes) based on dynamic data (not inline data defined in the UIX page) and i have found that the only way to do it(correct me if i'm wrong) is through java (not XML) and these are my main attempts:
1)
public class TreeTest1
public static UINode getPage()
HTMLWebBean div = new HTMLWebBean("div");
TreeBean tree = new TreeBean();
tree.setNodes(_getDataForTree());
div.addIndexedChild(tree);
BodyBean body = new BodyBean();
body.addIndexedChild(div);
return body;
static private DataObjectList _getDataForTree()
DataObject[] rows = new DataObject[5];
for (int j = 0; j < rows.length; j++)
DictionaryData row = new DictionaryData();
row.put("key", "" + j);
row.put("text", "" + j);
rows[j] = row;
return new ArrayDataSet(rows);
when i run this i just get level-1 nodes without any control over them (i.e i can't set their properties like destination, expandabilty..etc)
2) I have found this code here http://otn.oracle.com/jdeveloper/help/topic?inOHW=false&linkHelp=false&file=jar:file:/u01/webapps/OHW/ohw-app/jdeveloper/helpsets/jdeveloper/reference/reference.zip!/uix2-javadoc/oracle/cabo/ui/data/tree/SimpleTreeData.html but it is not mentioned how to add this DataModel to the tree.
3) In the TreeBean API there are methods to add any IUNode to the tree (including another tree) and here's an example :
public class TreeTest1
public static UINode getPage()
HTMLWebBean div = new HTMLWebBean("div");
TreeBean tree = new TreeBean();
tree.addIndexedChild(new TextNode("First tree node"));
tree.addIndexedChild(new TextNode("Second tree node"));
div.addIndexedChild(tree);
BodyBean body = new BodyBean();
body.addIndexedChild(div);
return body;
but the problem here is that the tree is not rendered, any other UINode is rendered perfectly.
I would appreciate any help.

Hi Houssen, I made a simple example. Try it.
The uix file
-------- BEGIN ----------
<?xml version="1.0" encoding="windows-1252"?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:html="http://www.w3.org/TR/REC-html40">
<content>
<dataScope xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui">
<provider>
<data name="Proxy">
<method class="mypackage.Tree" method="getProxy" />
</data>
<data name="Nodes">
<method class="mypackage.Tree" method="getTree" />
</data>
</provider>
<contents>
<document>
<metaContainer>

<head title=""/>
</metaContainer>
<contents>
<pageLayout>
<contents>
<form name="menuForm" >
<contents>
<tree id="menuTree" formSubmitted="true"
data:nodes="nodes@Nodes"
data:proxy="proxy@Proxy" />
</contents>
</form>
</contents>
</pageLayout>
</contents>
</document>
</contents>
</dataScope>
</content>
<handlers>
<event name="expand" >
<method class="mypackage.Tree" method="handleExpand" />
</event>
</handlers>
</page>
-------- END ----------
The java file
-------- BEGIN ----------
package mypackage;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.event.EventResult;
import oracle.cabo.servlet.event.PageEvent;
import oracle.cabo.servlet.ui.BajaRenderingContext;
import oracle.cabo.ui.RenderingContext;
import oracle.cabo.ui.UIConstants;
import oracle.cabo.ui.data.DataObject;
import oracle.cabo.ui.data.tree.ClientStateTreeDataProxy;
import oracle.cabo.ui.data.tree.SimpleTreeData;
public class Tree implements DataObject {
private String submitURL = null;
public Tree(String submitURL){
this.submitURL = submitURL;
public static DataObject getProxy(RenderingContext rc, String ns, String name) {
return new Tree(null);
public static EventResult handleExpand(BajaContext context,Page page,PageEvent event)
throws Throwable
String state = event.getParameter(UIConstants.STATE_PARAM);
String node = event.getParameter(UIConstants.NODE_PARAM);
String selection = event.getParameter(UIConstants.SELECTION_PARAM);
EventResult result = new EventResult(page);
Object proxy = new ClientStateTreeDataProxy(null, state, node, selection);
result.setProperty("proxy", proxy);
return result;
public static DataObject getTree(RenderingContext rc, String ns, String name){
SimpleTreeData parent = new SimpleTreeData();
SimpleTreeData child = new SimpleTreeData();
child.setText("1");
child.setExpandable("collapsed");
parent.addChild(child);
child = new SimpleTreeData();
child.setText("2");
child.setExpandable("collapsed");
SimpleTreeData child2 = new SimpleTreeData();
child2.setText("2.1");
child2.setExpandable("collapsed");
child.addChild(child2);
parent.addChild(child);
return parent;
public Object selectValue(RenderingContext rc, Object p1) {
BajaContext bc = BajaRenderingContext.getBajaContext(rc);
EventResult result = EventResult.getEventResult(bc);
Object proxy = (result==null) ? null : result.getProperty("proxy");
if (proxy==null) proxy = new ClientStateTreeDataProxy( submitURL, null, null, null);
return proxy;
-------- END ----------
Hope this help
Rafael

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Hi guys!!!
Uix team can`t write any examples of this subject, we decided to create it :-)...
There is an example of working tree with proxy for JDev 9.03!!!
All data takes from the DataBase. We use a ViewObject for DataBinding with hierarhical querry
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connect by prior... )! Dont forget to write this querry!
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Don`t forget to change the name of your package, appmodule in UIX and Java!!!
There are Java & Uix files here!
If U have any questions ask us for e-mail: [email protected] !
With best regards,
Diamond Developer Team (Stukotiy Luda (advancd support), Chindakov Alex, Druppov Serge).
From Russia!
P.S. We will be glad to see the working example of hGrid with the same DataBinding!
package mypackage1;
import java.lang.String;
import oracle.cabo.data.jbo.ui.bind.UIBindingUtils;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.servlet.event.EventResult;
import oracle.cabo.servlet.event.PageEvent;
import oracle.cabo.servlet.ui.BajaRenderingContext;
import oracle.cabo.ui.RenderingContext;
import oracle.cabo.ui.UIConstants;
import oracle.cabo.ui.data.DataObject;
import oracle.cabo.ui.data.DataObjectList;
import oracle.cabo.ui.data.tree.ClientStateTreeDataProxy;
import oracle.cabo.ui.data.tree.SimpleTreeData;
import oracle.jbo.NoDefException;
import oracle.jbo.Row;
import oracle.jbo.RowIterator;
import oracle.jbo.ViewObject;
import oracle.jbo.server.ApplicationModuleImpl;
// --- File generated by Oracle Business Components for Java.
public class Mypackage1ModuleImpl extends ApplicationModuleImpl
* This is the default constructor (do not remove)
public Mypackage1ModuleImpl()
* Container's getter for TsStatView1
public TsStatViewImpl getTsStatView1()
return (TsStatViewImpl)findViewObject("TsStatView1");
* Sample main for debugging Business Components code using the tester.
public static void main(String[] args)
launchTester("mypackage1", "Mypackage1ModuleLocal");
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* Create a data object list based on the current range of
* this row iterator.
public JBODataObjectList(RowIterator iterator)
this(iterator, Integer.MAX_VALUE);
* Create a data object list based on the current range of
* this row iterator, with a restricted size.
public JBODataObjectList(RowIterator iterator, int maxSize)
_iterator = iterator;
size = Math.min(iterator.getRowCountInRange(), maxSize);
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return _size;
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public DataObject getItem(int index)
// Make sure we're in range
if ((index < 0) || (index >= _size))
throw new IndexOutOfBoundsException();
Row row = _iterator.getRowAtRangeIndex(index);
if (row == null)
return null;
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static private final class DO implements DataObject
public DO(Row row)
_row = row;
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// Make sure that the key is non-null
if (key != null)
try
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return _row.getAttribute(key.toString());
catch (NoDefException nde)
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return null;
private final Row _row;
private final RowIterator _iterator;
private final int _size;
public class Tree implements DataObject {
private String submitURL = null;
public Tree(String submitURL){
this.submitURL = submitURL;
public static DataObject getProxy(RenderingContext rc, String ns, String name) {
return new Tree(null);
public static EventResult handleExpand(BajaContext context,Page page,PageEvent event)
throws Throwable
String state = event.getParameter(UIConstants.STATE_PARAM);
String node = event.getParameter(UIConstants.NODE_PARAM);
String selection = event.getParameter(UIConstants.SELECTION_PARAM);
EventResult result = new EventResult(page);
Object proxy = new ClientStateTreeDataProxy(null, state, node, selection);
result.setProperty("proxy", proxy);
return result;
public static int s = 0; // ��
public static int i = 0; // ��
// � ��, �� , �� !!!
public static String mOwner[]=new String[100]; // �� fk_owner ��
public static String mName[]=new String[100]; // �� fc_name ��
public static DataObject getTree(RenderingContext rc, String ns, String name){
SimpleTreeData child = new SimpleTreeData();
SimpleTreeData parent = new SimpleTreeData(); // ��
SimpleTreeData parent1 = new SimpleTreeData(); // ��
SimpleTreeData parentBuf[] = new SimpleTreeData[130]; // ��
int ownerInt; // �� fk_owner ��
int buf = 0; // �� fk_owner ��
String ownerStr, // --- � ��
valueColumn; // ��
if (i==0)
ViewObject vo = UIBindingUtils.getViewObject(rc); // �� VO
vo.previous();
//for(s=0;s<96;s++)
while(vo.hasNext())
Row row=vo.next();
mOwner[s]=row.getAttribute("FkOwnerid").toString();
mName[s]=row.getAttribute("FcName").toString();
s++;
for (i=0;i<s;i++)
ownerStr=mOwner;
valueColumn=mName[i];
//ownerStr = row.getAttribute("FkOwnerid").toString();
ownerInt = Integer.parseInt(ownerStr);
//valueColumn = row.getAttribute("FcName").toString();
if(ownerInt == 0) // ��
parent1 = new SimpleTreeData();
parent1.setText(valueColumn);
parent1.setExpandable("expanded");
parent.addChild(parent1);
buf = 0;
// parentBuf[ownerInt] = new MySimpleTreeData();
else
if(ownerInt != buf)
if(ownerInt > buf)
child = new SimpleTreeData();
child.setText(valueColumn);
child.setExpandable("expanded");
parent1.addChild(child);
parentBuf[ownerInt] = parent1;
parent1 = child;
buf = ownerInt;
else
child.setExpandable("no");
parent1 = parentBuf[ownerInt];
child = new SimpleTreeData();
child.setText(valueColumn);
child.setExpandable("expanded");
parent1.addChild(child);
parent1 = child;
buf = ownerInt;
else
child.setExpandable("no");
child = new SimpleTreeData();
child.setText(valueColumn);
child.setExpandable("expanded");
//parentBuf[ownerInt].addChild(child);
parent1 = parentBuf[ownerInt];
parent1.addChild(child);
parent1 = child;
if(i == 95)
child.setExpandable("no");
//child.setExpandable("no");
return parent;
public Object selectValue(RenderingContext rc, Object p1) {
BajaContext bc = BajaRenderingContext.getBajaContext(rc);
EventResult result = EventResult.getEventResult(bc);
Object proxy = (result==null) ? null : result.getProperty("proxy");
if (proxy==null) proxy = new ClientStateTreeDataProxy( submitURL, null, null, null);
return proxy;
<?xml version="1.0" encoding="windows-1252"?>
<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:ui="http://xmlns.oracle.com/uix/ui"
xmlns:bc4j="http://xmlns.oracle.com/uix/bc4j"
xmlns:html="http://www.w3.org/TR/REC-html40">
<bc4j:registryDef>
<bc4j:rootAppModuleDef name="TsStatView1AppModule"
definition="Project4.Mypackage1Module"
releaseMode="stateful" >
<bc4j:viewObjectDef name="TsStatView1"
rangeSize="3" />
</bc4j:rootAppModuleDef>
</bc4j:registryDef>
<content>
<dataScope xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui">
<provider>
<data name="Proxy">
<method class="mypackage1.Tree" method="getProxy" />
</data>
<data name="Nodes">
<method class="mypackage1.Tree" method="getTree" />
</data>
</provider>
<contents>
<bc4j:rootAppModuleScope name="TsStatView1AppModule" >
<contents>
<document>
<metaContainer>

<head title=""/>
</metaContainer>
<contents>
<bc4j:viewObjectScope name="TsStatView1" >
<contents>
<pageLayout>
<contents>
<form name="menuForm" >
<contents>
<tree id="menuTree" formSubmitted="true"
data:nodes="nodes@Nodes"
data:proxy="proxy@Proxy" />
</contents>
</form>
</contents>
</pageLayout>
</contents>
</bc4j:viewObjectScope>
</contents>
</document>
</contents>
</bc4j:rootAppModuleScope>
</contents>
</dataScope>
</content>
<handlers>
<event name="expand" >
<method class="mypackage1.Tree" method="handleExpand" />
</event>
</handlers>
</page>

Don't forget, you can make code easier to read by enclosing it in [code ] tags (without the space in the first tag), so it looks like this:
<provider>
 <data name="bundle">
 <bundle class="strings" />
 </data>
</provider> instead of this:
<provider>
 <data name="bundle">
 <bundle class="strings" />
 </data>
</provider>

Dynamic UIX tree

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