Interface NodeVisitor

    • Method Summary

      All Methods Instance Methods Abstract Methods Default Methods 
      Modifier and Type Method Description
      void head​(Node node, int depth)
      Callback for when a node is first visited.
      default 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), replaced Node.replaceWith(Node)) or removed Node.remove(). If it's instanceOf Element, you may cast it to an Element and access those methods.

        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

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

        This method has a default no-op implementation.

        Note that neither replacement with Node.replaceWith(Node) nor removal with Node.remove() is supported during 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.