Hi Nick,

thank you for your answer. No, there are a lot of childs / folders. Even if I hard code the return of some childs they are not shown. It seems that my function getNodes() is only called in the first layer.

If have the following structure:

Root:
/

First Layer:
/WEB-INF
/META-INF:

Second Layer:
/WEB-INF/lib
/WEB-INF/classes
/WEB-INF/web.xml
....

Third Layer:
/WEB-INF/lib/log4j.jar
.....

If I debug, the function "getNodes()" is called in the Root and in the WEB-INF node but not deeper.

Maybe there is something wrong with my environment? I am working with a Tomcat 6.

Regards,
Marc

There is a strange behavior: On my notebook machine it doesn't work and on my desktop machine it works. It is the same code. I want have a dynamic loading of the child nodes. Maybe there is a problem in the hibernate part because the difference between both machines are the databases: mysql on notebook and oracle on desktop. But anyway here is the relevant code:

JSF:

<rich:tree id="menue" style="width:200px;max-width:400px;"
 ajaxSubmitSelection="true" switchType="ajax"
 nodeSelectListener="#{PageManager.selectNode}"
 reRender="pagePanel,pageLinkPanel" acceptedTypes="page"
 dropListener="#{PageManager.processDrop}">
 <rich:recursiveTreeNodesAdaptor roots="#{PageManager.root}"
 var="item" nodes="#{item.childList}">
 <rich:treeNode dragType="page" dragValue="#{item}"
 dragIndicator="indicator">
 <rich:dndParam name="label" value="#{item.pagetitle}" />
 <h:outputText value="#{item.pagetitle}" />
 </rich:treeNode>
 </rich:recursiveTreeNodesAdaptor>
</rich:tree>

public PageManager(){

private WebPage root;

....

public WebPage getRoot() {
 if (root == null) {
 root = ControllerDictionary.get().getPageDao().findById(
 new Long(1), false);
 }
 return root;
}
}

public class WebPage{

 @Transient
 private List<WebPage> childList = null;
 @Transient
 private Calendar childReadDate = null;

 ...

 public List<WebPage> getChildList() {
 if (childList == null) {
 logger.debug("Load for Page " + this.getId());
 childList = ControllerDictionary.get().getPageDao().getChildList(
 this);
 childReadDate = Calendar.getInstance();
 for (WebPage p : childList) {
 p.setParentNode(this);
 }
 } else {
 logger.debug("Childnodes for Page " + this.getId()
 + " already loaded");
 }
 return childList;
 }
}

Childnodes for Page 1 already loaded

Load for Page 2
Load for Page 3
Load for Page 4
Load for Page 5
...

Nick, you are right. I got the common-collection 2.1.1 in the classpath. Now with 3.2 everything is fine.

Thank you very much and regards from Germany
Marc