Interface NodeVisitor

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void head​(Node node, int depth)
      Callback for when a node is first visited.
      void tail​(Node node, int depth)
      Callback for when a node is last visited, after all of its descendants have been visited.
    • Method Detail

      • head

        void head​(Node node,
                  int depth)
        Callback for when a node is first visited.

        The node may be modified (e.g. Node.attr(String) or replaced Node.replaceWith(Node)). If it's instanceOf Element, you may cast it to an Element and access those methods.

        Note that nodes may not be removed during traversal using this method; use NodeTraversor.filter(NodeFilter, Node) with a NodeFilter.FilterResult.REMOVE return instead.

        Parameters:
        node - the node being visited.
        depth - the depth of the node, relative to the root node. E.g., the root node has depth 0, and a child node of that will have depth 1.
      • tail

        void tail​(Node node,
                  int depth)
        Callback for when a node is last visited, after all of its descendants have been visited.

        Note that replacement with Node.replaceWith(Node) is not supported in tail.

        Parameters:
        node - the node being visited.
        depth - the depth of the node, relative to the root node. E.g., the root node has depth 0, and a child node of that will have depth 1.