DefaultTreeModel: nodeStructureChanged + Tree Reloading

[OharaSu]

Title: 郵件

Hi All

 

I test the scenario from David.

I found that TreeModel won't hook ModelListener in HtmlTree

because when you try to use DefaultTreeModel to build a TreeModel.

You just do

DefaultTreeModel treeModel = new DefaultTreeModel(root);

and this construction won't hook any listener.

I think maybe the scenario as follows will work.

 

// Resolve the tree table.
FacesContext facesContext = FacesContext.getCurrentInstance();
VariableResolver vr = facesContext.getApplication().getVariableResolver();
RoleTreeTable roleTree = (RoleTreeTable)vr.resolveVariable(facesContext,RoleTreeTable.ROLE_TREE_TABLE);

 

//you should hook listener if you want to construct a tree model.
//roleTree.setTreeModel(SecurityApplicationUtils.buildRoleTreeModel());

 

DefaultMutableTreeNode root = (DefaultMutableTreeNode)roleTree.getTreeModel().getRoot();

//add new node or remove node in root

DefaultMutableTreeNode target = null;//target is the node that will be added or removed
DefaultMutableTreeNode parent = null;//parent is the parent node of target

...........

 

 

roleTree.getTreeModel().nodeStructureChanged(parent);

 

 

 

 

 

ohara