Af:Tree model changes

Hi,
I have a requirement where say, I have Region -> Countries -> locations. The Region VO is a dropdown on the page. Based on the selected region, I need to show country and Location in the form of af:tree. Can anyone please tell me how can I proceed with this? The EO, VO, Viewlinks, View criteria/where clause in VO?
Thanks!

Hi,
drag the "Region" as a navigation list (as drop down list that you can configure the display information for). Set the "autosubmit" property to true. Then create the tree from the dependent "Countrie" view object instance and configure the af:tree partialTriggers property to point to the ID of the navigation list
Frank

Similar Messages

Using CVS in SQL Developer for Data Modeler changes.

Hi,
I am fairly new to SQL Developer Data Modeler and associated version control mechanisms.
I am prototyping the storage of database designs and version control for the same, using the Data Modeler within SQL Developer. I have SQL Developer version 3.1.07.42 and I have also installed the CVS extension.
I can connect to our CVS server through sspi protocol and external CVS executable and am able to check out modules.
Below is the scenario where I am facing some issue:
I open the design from the checked out module and make changes and save it. In the File navigator, I look for the files that have been modified or added newly.
This behaves rather inconsistently in the sense that even after clicking on refresh button, sometimes it does not get refreshed. Next I try to look for the changes in Pending Changes(CVS) window. According to the other posts, I am supposed to look at the View - Data Modeler - Pending Changes window for data modeler changes but that shows up empty always( I am not sure if it is only tied to Subversion). But I do see the modified files/ files to be added to CVS under Versioning - CVS - Pending Changes window. The issue is that when I click on the refresh button in the window, all the files just vanish and all the counts show 0. Strangely if I go to Tools - Preferences - Versioning - CVS and just click OK, the pending changes window gets populated again( the counts are inconsistent at times).
I believe this issue is fixed and should work correctly in 3.1.07.42 but it does not seem to be case.
Also, I m not sure if I can use this CVS functionality available in SQL Dev for data modeler or should I be using an external client such as Wincvs for check in/ check out.
Please help.
Thanks

Hi Joop,
I think you will find that in Data Modeler's Physical Model tree the same icons are used for temporary Tables and Materialized Views as in SQL Developer.
David

How to hide a tree node from the GUI but still keep it in the tree model?

Hi, All
I used a JTree in my project in which I have a DefaultTreeModel to store all the tree structure and a JTree show it on the screen. But for some reason, I want to hide some of the nodes from the user, but I don't want to remove them from the tree model because later on I still need to use them.
I searched on the web, some people suggested method to hide the root node, but that's not appliable to my project because I want to hide some non-root nodes; Some people also suggested to collapse the parent node when there are child to hide, it is not appliable to me either, because there still some other childnodes (sibling of the node to hide) I want to show.
How can I hide some of the tree node from the user? Thanks for any information.
Linda

Here's an example using a derivation of DefaultTreeModel that shows (or does not show) two types of Sneech (appologies to the good Dr Zeus) by overiding two methods on the model.
Now, there are many things wrong with this example (using instanceof, for example), but it's pretty tight and shows one way of doing what you want.
Note: to make it useful, you''d have to change the implementation of setShowStarBelliedSneeches() to do something more sophisticated than simply firing a structure change event on the root node. You'd want to find all the star bellied sneech nodes and call fireTreeNodesRemoved(). That way the tree would stay expanded rather than collapse as it does now.
import javax.swing.JTree;
import javax.swing.JScrollPane;
import javax.swing.JOptionPane;
import javax.swing.JCheckBox;
import javax.swing.JPanel;
import javax.swing.tree.TreePath;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Enumeration;
class FilteredTree
 private class PlainBelliedSneech {
 public String toString() { return "Plain Bellied Sneech"; }
 private class StarBelliedSneech {
 public String toString() { return "Star Bellied Sneech"; }
 private class FilteredTreeModel
 extends DefaultTreeModel
 private boolean mShowStarBelliedSneeches= true;
 private DefaultMutableTreeNode mRoot;
 FilteredTreeModel(DefaultMutableTreeNode root)
 super(root);
 mRoot= root;
 public Object getChild(Object parent, int index)
 DefaultMutableTreeNode node=
 (DefaultMutableTreeNode) parent;
 if (mShowStarBelliedSneeches)
 return node.getChildAt(index);
 int pos= 0;
 for (int i= 0, cnt= 0; i< node.getChildCount(); i++) {
 if (((DefaultMutableTreeNode) node.getChildAt(i)).getUserObject()
 instanceof PlainBelliedSneech)
 if (cnt++ == index) {
 pos= i;
 break;
 return node.getChildAt(pos);
 public int getChildCount(Object parent)
 DefaultMutableTreeNode node=
 (DefaultMutableTreeNode) parent;
 if (mShowStarBelliedSneeches)
 return node.getChildCount();
 int childCount= 0;
 Enumeration children= node.children();
 while (children.hasMoreElements()) {
 if (((DefaultMutableTreeNode) children.nextElement()).getUserObject()
 instanceof PlainBelliedSneech)
 childCount++;
 return childCount;
 public boolean getShowStarBelliedSneeches() {
 return mShowStarBelliedSneeches;
 public void setShowStarBelliedSneeches(boolean showStarBelliedSneeches)
 if (showStarBelliedSneeches != mShowStarBelliedSneeches) {
 mShowStarBelliedSneeches= showStarBelliedSneeches;
 Object[] path= { mRoot };
 int[] childIndices= new int[root.getChildCount()];
 Object[] children= new Object[root.getChildCount()];
 for (int i= 0; i< root.getChildCount(); i++) {
 childIndices= i;
 children[i]= root.getChildAt(i);
 fireTreeStructureChanged(this, path, childIndices, children);
 private FilteredTree()
 final DefaultMutableTreeNode root= new DefaultMutableTreeNode("Root");
 DefaultMutableTreeNode parent;
 DefaultMutableTreeNode child;
 for (int i= 0; i< 2; i++) {
 parent= new DefaultMutableTreeNode(new PlainBelliedSneech());
 root.add(parent);
 for (int j= 0; j< 2; j++) {
 child= new DefaultMutableTreeNode(new StarBelliedSneech());
 parent.add(child);
 for (int k= 0; k< 2; k++)
 child.add(new DefaultMutableTreeNode(new PlainBelliedSneech()));
 for (int j= 0; j< 2; j++)
 parent.add(new DefaultMutableTreeNode(new PlainBelliedSneech()));
 parent= new DefaultMutableTreeNode(new StarBelliedSneech());
 root.add(parent);
 for (int j= 0; j< 2; j++) {
 child= new DefaultMutableTreeNode(new PlainBelliedSneech());
 parent.add(child);
 for (int k= 0; k< 2; k++)
 child.add(new DefaultMutableTreeNode(new StarBelliedSneech()));
 for (int j= 0; j< 2; j++)
 parent.add(new DefaultMutableTreeNode(new StarBelliedSneech()));
 final FilteredTreeModel model= new FilteredTreeModel(root);
 JTree tree= new JTree(model);
tree.setShowsRootHandles(true);
tree.putClientProperty("JTree.lineStyle", "Angled");
 tree.setRootVisible(false);
 JScrollPane sp= new JScrollPane(tree);
 sp.setPreferredSize(new Dimension(200,400));
 final JCheckBox check= new JCheckBox("Show Star Bellied Sneeches");
 check.setSelected(model.getShowStarBelliedSneeches());
 check.addActionListener(new ActionListener() {
 public void actionPerformed(ActionEvent e) {
 model.setShowStarBelliedSneeches(check.isSelected());
 JPanel panel= new JPanel(new BorderLayout());
 panel.add(check, BorderLayout.NORTH);
 panel.add(sp, BorderLayout.CENTER);
 JOptionPane.showOptionDialog(
 null, panel, "Sneeches on Beeches",
 JOptionPane.DEFAULT_OPTION,
 JOptionPane.PLAIN_MESSAGE,
 null, new String[0], null
 System.exit(0);
 public static void main(String[] argv) {
 new FilteredTree();

Creating Tree Model in JDeveloper 11.1.2

hi!
I tried the steps written in blog below but it didn't work. The output was 'no data to display'. Can anyone suggest me where I can find full procedure according to JDeveloper 11.1.2 for creating our own Tree model.
[http://www.yonaweb.be/creating_your_own_treemodel_adf_11g_0]
Thanks in advance!!
Edited by: 886029 on Sep 22, 2011 4:51 AM

You can check the tree demos here:
http://www.oracle.com/technetwork/developer-tools/adf/documentation/adf-faces-rc-demo-083799.html
for examples of beans with tree model.
Of course if you are just accessing a database, then using ADF BC or JPA/EJB will get you there without any code needed.

Data modeler saving Physical model changes not saved

I am using version 2.0.0.584.
The bug fix list contains: 8722310: Save does not save physical model changes
Hovever I still see unexpected behaviour.
I created a physical model for "Oracle database 10g" and allocated a couple of tables to a different tablespace.
I saved the physical model via Physical model--> right mouse button --> save all.
I saved the model with File--> save
I close the model.
After opening, the physical model is not available anymore.
After Physical model--> right mouse button --> open (for Oracle 10g) the contents are not the same anymore.
Tablespaces with name "TableSpace3" and "TableSpace4" are added and objects belong to this tablespace.
We do not have currently a workaround for this behaviour.
Can anyone help?
Thanks
Edited by: 793016 on 06-Sep-2010 03:10
Edited by: 793016 on Sep 6, 2010 12:14 PM

Hi Philip,
default tablespaces were defined and I removed this. It did not have a positive effect.
Checking the log files was a good idea.
The log file contained errors about files which could not be found on the system.
I will do some additional tests and let you know.
Thanks.
Kind regards,
Maurice

Problem in Exploring the Decision Tree Model on Lesson 4 Basic Data Mining SSAS

Hello everyone,
I've tried to follow all the steps mentioned in Basic Data Mining Tutorials, but I've an odd problem in the Lesson 4 - Exploring the Decision Tree Model (http://technet.microsoft.com/en-us/library/cc879269.aspx).
It's stated that "As you view the TM_Decision_Tree model
in the Decision Tree viewer, you can see the most important attributes at the left side of the chart. “Most important” means that these attributes have the greatest influence on the outcome. Attributes further down the tree (to the right of the chart) have
less of an effect. In this example, age is the single most important factor in predicting bike buying. The model
groups customers by age, and then shows the next more important attribute for each age group. For example, in the group of customers aged 34 to 40, the number of cars owned is the strongest predictor after age."
But, I got a different result from what mentioned in the tutorial. I got the number of cars owned as the most important attribute, then followed by the attribute age.
Do you guys know why?
Thanks in advance

HI,
BEGIN
INSERT INTO DT_CA_SETTINGS_TEST (SETTING_NAME, SETTING_VALUE) VALUES
(dbms_data_mining.TREE_TERM_MINPCT_NODE,to_char(1));
END;
That is not "Mode" its "NODE".
Now Execute.
Cheers..

Bette way to referenced tree model nodes from UI to perform actions on them

A singleton facade is built.
Its init() method loads several "tree model configs", each of them referenced by a name.
This singleton creates a Project instance for a given "tree model config" calling the facade method -> createProject(String pjrName, String modelConfigName)
When the Project is built a new Model instance is set ( remember the model instance is a tree holding nodes )
The new Project instance built is added to a List that the facade has and then it's returned to the UI part that called ->createProject(prjName,modelconfigName)
Given the Project instance the UI has to build a JTree representation of the model that the project references and the UI will have button actions that should call methods of the Nodes of the model referenced by the Project.
Doing it this way the UI will be able to reference objects directly without going through the facade.
Maybe I should return to the UI something like a ProjectKey instance instead of letting have the UI the Project instance ?
It should be better if I process the possible node actions behind the Facade and not the UI, but how can I do it ?
Having a ProjectKey in my UI I could ask the facade a model tree representation but not having the real nodes, otherwise having some NodeKey instances ?

Sounds like you want to represent a tree structure, without a reference to the real tree.
I'll take it further: maybe you don't want the UI to know there's a real tree data-structure with nodes and pointers to children, because maybe you build the tree on the fly from a database.
So use the Builder pattern instead of committing to a specific data structure.
Google results for Builder pattern: http://www.google.com/search?hl=en&q=builder+pattern&btnG=Google+Search
Your UI should know how to construct nodes and children graphically, when told. This means it should have methods like addNode, but related to the domain: addSubProject maybe.
A Project object is the Director, knowing which part goes where, but it doesn't know the real end result (a JPanel or HTML). So it has a method buildProject(Builder e) or exportProject(Exporter e), where all logic of assembling the parts is.
When you have that, write a class JTreeProjectExporter implements Exporter.
Hope this helps.

[CS3] Whats the best way to track model changes? Document Observer? Selection Observer?

Hello, Usecase I am working on needs to track following events: 1. A page item was created/deleted/resized/moved/etc.. 2. A text was inserted/deleted 3. A page was created/deleted Since the list is quite broad I am wondering if there are known best practices to follow. I have tried attaching to Command manager via Document Observer: InterfacePtr<IDocument> iDocument(this, UseDefaultIID()); InterfacePtr<ISubject> iSubject(iDocument, UseDefaultIID()); iSubject->AttachObserver(ISubject::kRegularAttachment,this, IID_ICOMMANDMGR, IID_IMYDOCOBSERVER); Then during "update" call: if (protocol != IID_IHIERARCHY_DOCUMENT) break; ICommand* iCommand = (ICommand*)changedBy; if (iCommand->GetCommandState() != ICommand::kDone) break; const UIDList itemList = iCommand->GetItemListReference(); if (itemList == nil || itemList.IsEmpty()) break; ClassID commandClassID = ::GetClass(iCommand); if(commandClassID.Get() == kAddToHierarchyCmdBoss || kPlacePICmdBoss) { // do something at new item creation } Problem is "kAddToHierarchyCmdBoss" is not just the one command that is sent while creating a new item. There are dozen others and hence I am not sure if I am watching the right one. Second I tried implementing a selection observer and hope to use HandleSelectionAttibuteChanged. A quick search didnt resulted in any suite that lets me implement my use cases. I was inclined towards command observer because thats at low enough level (and right above database layer) allowing me to trap all model changes. I am not looking for a specific answer/code but more of a guideline how to approach the problem. Suggestions? Comments? Thanks in advance

There is no silver bullet, and while the command mgr can be useful to find out what's going on in general, it is definitely not the place for own dispatching. You'll have to revisit every command before and after execution, and plenty obscure sub-commands nested within larger sequences. If you handle them all this will seriously degrade performance. One good use of command manager notifications is to yield and inspect the matching commands for UI activities, from within your debug build.
In your quoted update(), when you check the protocol you're anyway already discarding the command mgr notifications, because the protocol then would be IID_ICOMMANDMGR. Probably you already have attached a bunch of other protocols?
Comparing to previous versions, the changes listed in 1) are pretty simple, you just subscribe at the document boss, and listen for the protocols IID_IHIERARCHY_DOCUMENT, IID_ITRANSFORM_DOCUMENT, eventually IID_IGEOMETRY_DOCUMENT, IID_IPATHGEOMETRY_DOCUMENT, IID_IINVALSHAPE. These also have an advantage that you get a meaningful theChange (rather than the command mgr's kBeforeDoMessageBoss and alike) and can dispatch on those.
If you have a previous version of InDesign, there used to be a wildcard protocol IID_IPMUNKNOWN that would yield any notifications on the subject so you could dump them out and search for details. Apparently for performance reasons this was removed with CS3 after some plugins used it for release code, IMO Adobe should just have limited the feature to the debug build.
Besides to observers, the service registry is full of other notifications, have a look the the cross reference in sdkdocs/html/classISignalMgr.html for the most prominent ones. One exception here, 2) For text edits, you won't even use observers or signals but kEditCmdPreProcessService / IID_ITEXTEDITPREPROCESS service instead, or its sister IID_ITEXTEDITPOSTPROCESS.
3) Probably you'll again observe the kDocBoss for IID_ISPREADLIST and IID_IMASTERSPREADLIST.
Regarding selection observers and suites, we're talking model changes here so please just forget about them in this place. Selection observers are used to follow the selection from within UI widgets, such as a palette or control strip.
Regards,
Dirk

JTree - with two tree Models

I have two types of tree Models that I would like to combine into one tree i did the combination this way:
public CombainedTreeModel(BaseTreeModel firstSubTree,BaseTreeModel secondSubTree) {
super(null);
BaseTreeNode root=new BaseTreeNode("root");
insertNodeInto(firstSubTree.getTreeRoot(),root,GuiConstants.INDEX_ZERO);
insertNodeInto(secondSubTree.getTreeRoot(),root,GuiConstants.INDEX_ONE);
and used the combined model (that is extends of BaseTreeModel -> DefaultTreeModel.) as the input of the tree.
I see that there are elements in the tree but they are not visible.....
what is the problem?

I had a bit different interpertation for the MVC in swing:
model - is a pure java class holds the data
control- the treeModel that pass the commands to the model and after the comand was done - remove/add/update node from the tree and commite reload so the view will be refreshed
view - the Jtree
Everything in this model used to be ok until i combined two tree model to a third model so they will be displayed together.
this is how I remove a node:
public void removeContentServer(int contentServerId) throws BitBandGuiRemoveException, BitBandGuiFindException {
if (logger.isDebugEnabled())
logger.debug("ContentTreeModel.removeContentServer");
BaseContentTreeNode contentServerNode = getContentServerNode(contentServerId);
networkModel.removeContentServer(contentServerId);
contentServerNode.removeFromParent();
if (logger.isDebugEnabled()) {
logger.debug("remove content server from the model" + contentServerId);
synchronized (contentServerNode) {
contentServerNode.removeFromParent();
if (logger.isDebugEnabled()) {
logger.debug("remove content server from the tree model");
reload(root);
}

Forecast model changing

Hi
For a material in material master iam maintaining forecast model as "J".
The other parameters maintained are:
selection procedure-2
tracking limit-4
reset automatically- is checked
model selection-A
ALPHA FACTOR AND GAMMA FACTOR MAINTAINED
initialization-X
Now when i run the program RMPROG00, then in isee that the forecast model changes to "blank" or "D", "S". pls tell me how this change is happening?

Hello Dinakar,
I am also facing the similar issue, Are you able to get rid of this issue.
regards,
JPS

XML and Tree Model !!!

I am wanting to implement the tree model from xml data.
I am new to this so would appreicate any help filling in the gaps. My aim is to reflect this xml file in a JTreeTable format (I have left out the table model implementation.)
A sample xml file looks like this :
<?xml version="1.0" ?>
<exam>
<Column class="xTableModel">Attribute</Column>
<Column class="String">Value</Column>
<Question>
<Id>1</Id>
<Type>TF></Type>
<Text>Napolean was french ?></Text>
<Answer>True</Answer>
3
</Question>
</exam>
How I am Reading the file:
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder parser = factory.newDocumentBuilder();
doc = parser.parse(xmlfile);
Tree Model Methods. //Not really sure what i am doing here.
public Object getChild(Object node, int i)
Node parent = ((Node) node);
Object child = parent.getChildNodes().item(i);
return child;
public int getChildCount(Object node)
Node parent = ((Node) node);
// int child = parent.getChildNodes().getLength();
return 1;
public boolean isleaf(Object node)
Node parent = ((Node)node);
Node child = parent.getFirstChild();
return (child == null);
}

you can use a adapter pattern to convert the xml element to a TreeModel, this can be used by JTree

ADFf 11g, view does not refresh when model changes

Hi,
I am really missing something about adf faces (jdev 11.1.1.3.0).
I have a web app, with jspx, tabpanels and pojo data controls.
Since there is a complex logic to open new pages/tabs, sometimes I have to open new pages/tabs programmatically, and also sometimes I have
to refresh the model behind pages/tabs programmatically.
When I say "programmatically" I mean that the model refresh is not started by an user action on the webpage, but is started by logic in the model layer
(say, for example, you receive a JMS message and you want to reload the content of an entire page).
I can succesfully update the model, using debug println I can see the model is updated, but there is no way I can update the view.
I tryed with the "addPartialTarget" code and so on, but it does not work.
I've also bought and read "Oracle JDeveloper 11g Handbook" and "Oracle Fusion Developer Guide", but I can't find anything that can help me.
Can someone explain me: what am I missing? I am sure there is some concept in ADF Faces I missed: this framework is too
big not to offer what I need, so I miss something for sure.
I hope to get an answer, I hope Shay reads this too.
Thanks all.

Hi,
Active Data Services (chapter 20 in the book) is what would allow you to synchronize the screen with the model changes. The problem you face is because the data you see is what is stored in the iterators of the binding layer. An alternative solution to using ADS is to use an af:poll component that refreshes the display component when the model has changed. For this your model exposes a method that returns a time stamp that changes whenever the data has changed. Upon af:poll expiring, it calls a managed bean method, which - through the ADF binding layer - checks for the time stamp and compares it with a local saved copy (whenever the time stamp has changed, the client side will e.g. write it to the viewScope or pageFlowScope). If the time stamp has changed, the managed bean re-executes the method populating the iterator for the UI components and then issues a partial refresh of the component(s). Instead of PPR'ing each component in turn, you can try setting the ChangeEventPolicy property of the iterators to ppr"
This should solve the problem. The latter example is also explained in chapter 20, but for ADF BC
Frank

Simple Tree Model displays the subtree on second click

Hi,
I want to display a simple tree model structure with root "Tableset" and subnodes like "MARA". If i click on Mara it has to display all the fields from that table.
But it takes two clicks till the subtree opens? I suppose it needs something like a "fresh Tree".
Sinan

Hello Sinan,
you have to call the method expand_root_nodes of the tree model:
CALL METHOD model->expand_root_nodes
          EXPORTING expand_subtree = expand_subtree
                    level_count    = level_count.
expand_subtree:
If you set this parameter to 'X' , the system expands all subtrees of the root nodes
level_count:
Specifies the depth to which the root nodes should be expanded. Possible values:
0
: Only the root nodes themselves are expanded 1
: The root nodes and their first level of child nodes are expanded n
      : The root nodes are expanded down to their nth level of child nodes.
Note: If you set the expand_subtree parameter to 'X' , the value of level_count is ignored.

Model change

Can a model be replaced using the same method as replacing a view? If I have a view and a model to replace from the same ActivitySpace should they be in seperate packages?

Model change is slightly different (and not documented) from the view change. However, it can be done.
Here are the steps you need to follow:
1. Create a project with the new model class. This can be in same project as the view.
2. The new model class needs to extend (Java term) the original Model. It can be a modified copy of the original model.
3. The Create() method needs to return the newModel class.
4. Then follow the same steps as view replacement to deploy the new model, i.e change customactivityspace.xml etc..
Hoep this helps!
Vanita
Staples.
------- James Atkins wrote on 7/26/05 8:00 AM -------Can a model be replaced using the same method as replacing a view? If I have a view and a model to replace from the same ActivitySpace should they be in seperate packages?

About ALV tree model transaction

Hi Every One..
I got a requirement that we need to display some transactions in alv tree model. and if we click on that transaction then it should display that transaction in next half of custom container (like se80 transaction) .
Please help me out, it's urgent..
Thanks & Regards,
Nagalakshmi

Hi Nagalakshmi,
Check these sample codes:
BCALV_TREE_SIMPLE_DEMO
BCALV_TREE_DEMO
BCALV_GRID_DEMO
BCALV_FULLSCREEN_DEMO_CLASSIC
BCALV_FULLSCREEN_DEMO
BCALV_DEMO_HTML
BC_ALV_DEMO_HTML_D0100
BCALV_TREE_SIMPLE_DEMO
Reward If Useful.
Regards,
Chitra

Af:Tree model changes

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