I try to delete a node in tree2 backing model, and a Father of this node
is expanded (to view the child)
and then Im geting a new data for the model (without deleted node),
then I get an:
ServletException: Encountered a node [0:4:3:0] + with an illogical state.
Node is expanded but it is also considered a leaf (a leaf cannot be
considered expanded.
...
i have no Exceptions if Father is not expanded.
is it MyFaces bug or my?
I can not show all my code, these are the essential tiles of it.
public class CategoryNode implements TreeNode {
...
/** @see org.apache.myfaces.custom.tree2.TreeNode#isLeaf() */
public boolean isLeaf() {
if (children == null) {
return true;
}
if (children.isEmpty()) {
return true;
}
return false;
}
...
}
public class CatAdminBean { //catadmintab
...
public TreeNode getTree() {
if (tree == null) {
CatNodeInfo root =...;
tree = new CategoryNode(root);
}
return tree;
}
...
/** removes category from the tree */
public String removeCategory() {
// do the delete logic
tree = null;
}
...
}
catadmin.jsp:
...
<%-- treepanel--%>
<t:aliasBean alias="#{panel}" value="#{catadmin}">
<f:subview id="treepanel">
<jsp:include page="inctree.jsp"/>
</f:subview>
</t:aliasBean>
...
inctree.jsp:
...
<t:tree2 showRootNode="false"
value="#{catadmin.tree}"
clientSideToggle="true"
var="node" varNodeToggler="t">
<f:facet name="category">
<h:panelGroup>
<f:facet name="expand">
<h:graphicImage value="../images/yellow-folder-open.png"
rendered="#{t.nodeExpanded}"/>
</f:facet>
<f:facet name="collapse">
<h:graphicImage
value="../images/yellow-folder-closed.png"
rendered="#{!t.nodeExpanded}"/>
</f:facet>
<h:outputText value="#{node.name}" title="#{node.path}"
styleClass="nodelabel"/>
<h:outputText value=" (#{node.childCount})"
styleClass="nodelabel"
rendered="{!empty
node.children}"/>
</h:panelGroup>
</f:facet>
<f:facet name="document">
<h:panelGroup>
<h:graphicImage
value="../images/document.png" />
<h:outputText
value="#{node.name}"
title="#{node.path}"
styleClass="nodelabel"
/>
</h:panelGroup>
</f:facet>
</t:tree2>
...
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