Question

I have a problem which I tried to explained in the Image.I hope that will help all to understand what I need.

My Base Page is like this (menuNavPanel is the tree panel):

<div class="colContainer">
    <div class="leftColumn" >
        <div wicket:id="menuNavPanel"></div>
    </div>
    <div class="rightColumn">
        <wicket:child/>
    </div>
</div>

And Ny BIA Page which is a child of Base Page is like this:

 <wicket:extend>
   <div wicket:id="bodyPanel"></div>
 </wicket:extend>

in my Tree Panel, when I click on a node the code is this:

    @Override
        protected void onNodeLinkClicked(AjaxRequestTarget target, TreeNode node) {
            super.onNodeLinkClicked(target, node);
            DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode)node;
            Unit unitObject =(Unit) treeNode.getUserObject();

           // I want to call bodyPanel fo child page passing the  unitObject param


        }

Now, How can I call bodyPanel fo child page passing the unitObject param from the tree panel of the parent page?

Am I been able to express my problem? Hoping to get some help 🙂

Answer 1

Instead of doing the override method, upgrade to Wicket 1.5 and utilize the new event bus to communicate between your components. You can create a custom, type-safe, event that is specific to your component’s use case: for example “ItemAddedToShoppingCart” or “GlobalThermoNuclearWarStarted”.

The linked article in the 1.5 migration guide provides enough information on how to set up things.