How to use

newLink

method

in

org.apache.wicket.extensions.markup.html.tree.DefaultAbstractTree

/**
 * Creates a link that can be used to select / deselect the specified node.
 *
 * @param parent
 *            The parent component
 * @param id
 *            The component id
 * @param node
 *            The parent node
 * @return The component that represents the link
 */
protected MarkupContainer newNodeLink(MarkupContainer parent, String id, final TreeNode node)
{
  return newLink(parent, id, new ILinkCallback()
  {
    private static final long serialVersionUID = 1L;
    public void onClick(AjaxRequestTarget target)
    {
      getTreeState().selectNode(node, !getTreeState().isNodeSelected(node));
      onNodeLinkClicked(target, node);
      updateTree(target);
    }
  });
}

/**
 * Creates a link that can be used to select / deselect the specified node.
 * 
 * @param parent
 *            The parent component
 * @param id
 *            The component id
 * @param node
 *            The parent node
 * @return The component that represents the link
 */
protected MarkupContainer newNodeLink(final MarkupContainer parent, final String id,
  final TreeNode node)
{
  return newLink(parent, id, new ILinkCallback()
  {
    private static final long serialVersionUID = 1L;
    @Override
    public void onClick(final AjaxRequestTarget target)
    {
      getTreeState().selectNode(node, !getTreeState().isNodeSelected(node));
      onNodeLinkClicked(target, node);
      if (target != null)
      {
        updateTree(target);
      }
    }
  });
}

junctionLink = newLink(parent, id, new ILinkCallback()

junctionLink = newLink(parent, id, new ILinkCallback()