Problem in delting child node from tree

Hello friends I have a problem in tree component
I am using Xml File with creator .
I am showing company name as a root node
then department name as a child of company name
then employee name as a child of department
Initialy its working fine ,user can add edit and delete any node
In add and edit option I have no problem but in delete I hava a problem
when I am deleting any child node and after deleting the node I am clicking on the root node of the deleted node the it gives me null pointer Ecxeption .
but user added any child node and then delete it then Application work properly .
What is the problem I can't Understand please help me
thanks
Raviraj Gangrade

thanks deepsix for helping me
it gives me java.lang.NullPointerException and class name is
net.sf.saxon.dom.NodeWrapper$ChildEnumeration
here is my Stack Trace
javax.faces.FacesException: #{Graphs.childNode_action}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
at com.sun.rave.web.ui.appbase.faces.ActionListenerImpl.processAction(ActionListenerImpl.java:57)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:307)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:221)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
at sun.reflect.GeneratedMethodAccessor270.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:194)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:189)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doProcess(ProcessorTask.java:604)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:475)
at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:371)
at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:264)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:281)
at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:83)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:130)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
... 44 more
Caused by: java.lang.NullPointerException
at pegasusweb.Graphs.childNode_action(Graphs.java:1075)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
... 45 more
|#]
[#|2006-11-30T14:51:30.000+0530|SEVERE|sun-appserver-pe8.2|javax.enterprise.system.container.web|_ThreadID=16;|StandardWrapperValve[Faces Servlet]: Servlet.service() for servlet Faces Servlet threw exception
com.sun.rave.web.ui.appbase.ApplicationException: #{Graphs.childNode_action}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.destroy(ViewHandlerImpl.java:601)
at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:302)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:221)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
at sun.reflect.GeneratedMethodAccessor270.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:249)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:282)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:165)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:257)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at com.sun.rave.web.ui.util.UploadFilter.doFilter(UploadFilter.java:194)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:161)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:263)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:225)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:173)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:132)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:551)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:933)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:189)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.doProcess(ProcessorTask.java:604)
at com.sun.enterprise.web.connector.grizzly.ProcessorTask.process(ProcessorTask.java:475)
at com.sun.enterprise.web.connector.grizzly.ReadTask.executeProcessorTask(ReadTask.java:371)
at com.sun.enterprise.web.connector.grizzly.ReadTask.doTask(ReadTask.java:264)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:281)
at com.sun.enterprise.web.connector.grizzly.WorkerThread.run(WorkerThread.java:83)
Caused by: javax.faces.FacesException: #{Graphs.childNode_action}: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:78)
at com.sun.rave.web.ui.appbase.faces.ActionListenerImpl.processAction(ActionListenerImpl.java:57)
at javax.faces.component.UICommand.broadcast(UICommand.java:312)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:307)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:79)
at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:221)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
... 36 more
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:130)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:72)
... 44 more
Caused by: java.lang.NullPointerException
at pegasusweb.Graphs.childNode_action(Graphs.java:1075)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
... 45 more
|#]

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Relatively simple table
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>
Hi, Paul,Hi again Frank - couldn't sleep and am back at the "£$%^&* computer...
Yeah - it's a pity they weren't correct - I'll make doubly sure in future - see
my edited post (with DROP TABLE commands inter alia - I also removed
Order_Parts.User_Number since it was redundant - all that's needed is
Order_Number (normalisation) so now your SQL doesn't work - sorry
about that.
Just saying something "doesn't work" isn;t very helpful. What exactly is wrong with the SQL
statements I posted? Point out a couple of places where they are wrong, and explain how
you get the right results in those places.Nothing is wrong with your SQL - I meant *sorry* about the confusion in the DDL/DML from my end.
Now, I'm sorry again about the ambiguity of my English.
I'll reconstruct the original data that I gave you and re-run your SQL against that data - again,
this is *totally* my fault.
My tables creation script seems to work fine now - I've edited my reponse to Solomon - the definitive scripts
are now there - with Order_Parts.User_Number gone and the TO_DATE(...) as
you suggested - the VARCHARs seemed to give the right result though - but I
agree that if there's a correct way of doing it, then it should be done that way.
Remember why you need to go to the trouble of posting CREATE TABLE and INSERT statements
for some sample data here. It's to allow the people who want to help you to re-create the prolem
and test their ideas. I know, and that's why I did it - the OR REPLACE that I added (stupidly and without thinking or testing) was
so that people wouldn't have to go to the trouble of dropping the tables - I have now added
DROP TABLE blah... to the beginning of the script so it won't be necessary.
I have over 600 posts on this forum and only 26 questions - most of my time
spent here is trying to help (to the best of my limited ability - I'm not a guru
like yourself) and learning - it's amazing the number of times problems that
I've seen here have subsequently arisen at work - and I am frequently
frustrated by some posters' inability to explain their problem or at least give test
cases.
I can forgive bad English (except my own) - not everybody is a fluent speaker of the language,
but SQL should run no matter what language one speaks.
I appreciate that people are volunteering their time and effort here and I really do
try and make it as easy as possible for them when I ask questions - I messed up
this time, I'm afraid. It might also be the fact that I'm moving between SQL*Plus
and SQL Developer and a text editor that I got confused (plus, fatigue didn't help...)
In general, other people are not going to test anything on your system. I'm going to test
things on my system, Solomon will test things on his system, and other people will test things
on other systems. Well, if ever you're in Dublin ;). Again, I appreciate the effort that you, Solomon and sKr have
gone to in helping me.
Your INSERT earlier statements did not work on my system, because you were using a VARCHAR2
in a place where a DATE was required. The correct thing to do is to use DATEs where DATEs are required. Indeed, and I agreed with you that if there's a right way of doing it, then it should be done that way.
If your NLS settings are such that this is not causing you any errors right now, it's still a good
idea for you to fix it; but, at any rate, whether it works on your system isn't what's important in
this case; you're posting it to run on other peoples' systems.Ahhh.... <the blinding light of a moment of epiphany descends on Paul> I didn't realise it was
an NLS setting - of course Americans will be different - it's just that I thought that YYYY-Mon-DD
worked everywhere (I tried to avoid the day-first/month-first pitfall ) but now that you've explained
it to me, I'll *never* make that mistake again.
Yes - my mistake - I've now corrected the error
Where are the desired results? Don't merely hide them in an old message; post them in a new message.OK. I'll put it in a reply to this post. I really am endeavouring to be as clear as possible - please
excuse my errors - I will do better in future. I'm also very annoyed at my own incompetence and at
having put you to more trouble than you would have had to go to if I had my wits about me.
- should I keep Order_Parts.User_Number even
if it isn't conformant to normalisation rules?
If you have a good reason, it's okay to store de-normalized data. For example, some address tables in
the US contain both state and ZIP code, even though state is fucntionally depenedent on ZIP code. I think that in this case, denormalisation is not called for.
Re. the ZIP code thing, yeah, sure AIUI, the first two digits are dependent on the state, but the
last three? They're more or less random - at least in the sense that there's no way to type
in an address and calculate (mathematically, using a formula) them - so unless one were
to have weird SQL lookups to a "State" table for the first two digits and then take the final
three from a user-entered string field, then do a TO_CHAR on the returned 2-digit state number and add
this to the 3-character one - I can't see how the ZIP code is an example of this? But, maybe
(unless you wish to discuss that) we're getting side-tracked. Perhaps I'll ask this question
on comp.databases.theory?
Oracle actually added a new feature in version 11 (virtual columns) to make de-normalizing easier.Hmmm... is adding virtual columns denormalisation per se? My favourite "cheap'n'cheerful"
db server (Firebird) has had a COMPUTED BY clause (same idea) for yonks (> 12yrs) - no data
is actually stored - rather it is calculated on the fly. Another one for comp.databases.theory
perhaps?
BTW, wouldn't triggers remove all this hassle? It was my first idea, but trying to do it
purely through SQL is now *obsessing* me ;)
That would be another example of de-normalization. If the benefits of doing that outweigh the
costs, then go ahead. A trigger will take some effort to maintain, and it will make all DML slower, regardless
of how often that derived value is needed. Having the extra column will make some queries simpler and faster. Disk is cheap. Have an Original_Orders table (never changes) and a Revised_Orders table. When
a part replacement occurs - for orders that haven't been fulfilled (boolean flag?), change the
old part number to the new one. I can't imagine that replacement occurs very frequently, so
the expense of a trigger would IMHO be minimal - plus the down side of any trigger would
be mitigated by greatly simplifying the production of the Revised_Orders report?
... I'll experiment with what you've given me so far - but it's 23:40 here now, so I won't
get a chance to do it tonight - unfortunately, I *do* have to sleep.
If you haven't tested it yet, why did you start this message saying "your SQL doesn't work"?Sorry - what I meant was it obviously doesn't work when this eejit (i.e. me) has changed
the table structure - I did run it quickly (your 1st statement) against the (revised table
structure, the one you hadn't seen and I don't think even a man of your great SQL talents
can be expected to write working queries against unknown table structures :)).
Again, thanks for your help so far - I'll post the *_correct_* DDL and DML as a reply to this post
with the desired result. I'll also reconstitute the old (i.e. the one you worked against) tables
and data and let you know - again as a reply to this post - if I can at least learn something
from my fiasco, it won't have been a total waste of my time, and again, apologies for
wasting yours.
Thanks again and rgs.
Paul...
Edited by: Paulie on 22-Mar-2012 02:50

Can't get child node in tree selection listener

I am making a fusion web application using JDeveloper 11G (11.1.1.2.0).
I have created two view objects linked together. Let's call them VoDepartments and VoEmployees, linked on DepartmentId.
I hava made a tree with a af:switcher
<af:switcher id="s1" facetName="#{node.hierType.structureDefName}">
<f:facet name="view.VoDepartments">
<af:outputText value="#{node}" id="ot1"/>
</f:facet>
<f:facet name="view.VoEmployees">
<af:outputText value="#{node}" id="ot2"/>
</f:facet>
</af:switcher>I made a selection listener based on a guide by Frank Nimphius
RichTree tree1 = (RichTree) selectionEvent.getSource();
RowKeySet rks2 = selectionEvent.getAddedSet();
Iterator rksIterator = rks2.iterator();
if (rksIterator.hasNext()){
List key = (List)rksIterator.next();
JUCtrlHierBinding treeBinding = null;
treeBinding = (JUCtrlHierBinding) ((CollectionModel)tree1.getValue()).getWrappedData();
JUCtrlHierNodeBinding nodeBinding = nodeBinding = treeBinding.findNodeByKeyPath(key);
String nodeStuctureDefname = nodeBinding.getHierTypeBinding().getStructureDefName(); //Here is the nullpointerexception for employees
String employees = "view.VoEmployees";
String departments = "view.VoDepartments";
if (nodeStuctureDefname.equalsIgnoreCase(departments)){
   String dept = (String) nodeBinding.getAttribute("Department_name");
   System.out.println("Department = "+dept);
else if (nodeStuctureDefname.equalsIgnoreCase(employees)){
   String emp = (String) nodeBinding.getAttribute("First_name");
   System.out.println("Employee = "+emp);
else{
   //what the heck did the user click on? Ask him ;-)
}Pagedef:
Executables:
<iterator Binds="VoDepartments2" RangeSize="25" DataControl="AppMainDataControl" id="VoDepartments2Iterator"/>
Bindings:
<tree IterBinding="VoDepartments2Iterator" id="VoDepartments2">
<nodeDefinition DefName="view.VoDepartments" Name="VoDepartments20">
<AttrNames>
   <Item Value="DepartmentId"/>
</AttrNames>
<Accessors>
   <Item Value="VoEmployees"/>
</Accessors>
</nodeDefinition>
<nodeDefinition DefName="view.VoEmployees2" Name="VoDepartments21">
<AttrNames>
   <Item Value="First_name"/>
   <Item Value="Last_name"/>
</AttrNames>
</nodeDefinition>
</tree>The tree works just fine and list all it should list. I can click the department and my selection listener print the departments name in the console.
I can expand a department and list all employees. The problems is when I click an employee, I get null pointer exception.
I have found out that the selectin listener can't find nodeBiding for employees. So nodeBinding.getHierTypeBinding().getStructureDefName(); throw NullpointerException.
Anyone have an idea of what's wrong? Please help.
-Thomas
Edited by: Thomas H on Mar 22, 2010 8:21 AM

Hi,
if you open the tree binding editor, it has an entry "Target Data Source" for each of the node levels that you can use and point to an iterator binding representing the node. Not sure if this solves the issue, but chaces are.
1. create an iterator for a child VO (using the not dependent child VO instance)
2. Edit Target Data Source for the binding to e.g. ${bindings.EmployeesView1Iterator}
Frank

Don't see parent and child nodes in tree control with switcher, enclose xml

Hi, i.m a novice for jdev 11.1.1.2,
i need to create a tree menu, but when i put the switcher + n°2 face whith link object, inside the tree and
run my application i don't see the node, but i see the bookmarks that collapease and expand Why ????
Thanks for your help
Gio
enclose xml for better clarification:
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
<af:document id="d1">
<af:messages id="m1"/>
<af:form id="f1">
<af:panelStretchLayout id="psl1">
<f:facet name="center">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl4">
<af:panelSplitter id="ps1" splitterPosition="156"
inlineStyle="width:534px;">
<f:facet name="first">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl3">
<af:panelHeader text="panelHeader 1" id="ph1">
<f:facet name="context"/>
<f:facet name="menuBar"/>
<f:facet name="toolbar"/>
<f:facet name="legend"/>
<f:facet name="info"/>
<af:tree value="#{bindings.DepartmentsViewTree.treeModel}"
selectionListener="#{bindings.DepartmentsViewTree.treeModel.makeCurrent}"
rowSelection="single" id="t1" var="node">
<f:facet name="nodeStamp">
<af:switcher id="s1"
facetName="#{node.hierType.viewDefName}">
<f:facet name="DepartmentsView">
<af:panelGroupLayout id="pgl1">
<af:commandLink text="#{node}"
action="#{MainPageBean.departmentRegionLayout}"
id="cl1">
<af:setActionListener from="#{node.DepartmentId}"
to="#{pageFlowScope.TreeKey}"/>
</af:commandLink>
<af:commandLink text=" (Edit)"
action="createEdit" id="cl2">
<af:setActionListener from="#{node.DepartmentId}"
to="#{pageFlowScope.DeptTreeKey}"/>
</af:commandLink>
</af:panelGroupLayout>
</f:facet>
<f:facet name="EmployeesView">
<af:commandLink text="#{node}"
action="#{MainPageBean.employeeRegionLayout}"
id="cl3">
<af:setActionListener from="#{node.EmployeeId}"
to="#{pageFlowScope.TreeKey}"/>
</af:commandLink>
</f:facet>
</af:switcher>
</f:facet>
</af:tree>
</af:panelHeader>
</af:panelGroupLayout>
</f:facet>
<f:facet name="second">
<af:panelGroupLayout layout="scroll"
xmlns:af="http://xmlns.oracle.com/adf/faces/rich"
id="pgl2">
<af:region value="#{bindings.dynamicRegion1.regionModel}"
id="dynam1" partialTriggers="::t1"/>
</af:panelGroupLayout>
</f:facet>
</af:panelSplitter>
</af:panelGroupLayout>

</f:facet>
</af:panelStretchLayout>
</af:form>
</af:document>
</f:view>
</jsp:root>
Edited by: user595664 on 5-dic-2009 2.54
Edited by: user595664 on 5-dic-2009 2.57

Hi,
you need to provide the full naming for the facet names. So instead of DepartmentsView you provide mypackage.DepartmentsView where you replace mypackage with the package structure of the the ViewObject
Frank

How to create a Child node in Tree object

Hi All,
I have a thought to create a tree with a child object, that the child can able to create through by right click the parent tree having the options to create or delete the child objects.Please Suggest me if there is an possible way.
Thanks
Gopinath

Look at sample programm BCALV_TREE_DEMO,
and especially at the methods ADD_NODE or DELETE_SUBTREE of class CL_GUI_ALV_TREE.
For implementing the context menu, consider event ITEM_CONTEXT_MENU_REQUEST.
Regards,
Ulrich

Problem with remove a node from a list

ArrayList<My_node> list = new ArrayList<My_node>(size_of_list);
My_node is :
public class My_node {
public int key;
public String value;
public My_node(int x,String y) {
key = x;
value = y;
public void del_(int num,String name) {
for(j = 0;j<list.size();j++) {
if(list.get(j).key == num && list.get(j).value == name ) {
list.remove(j);
return;
But unfotrtunately the node is not deleted!!!
Could you plz tell me where is the problem?
Thanks in advance!

The problem might be that you are using == to compare strings. Try to use the .equals method.
if(list.get(j).key == num && list.get(j).value.equals(name))

Problem in delting child node from tree

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