Interface TreeVisit.ITreeVisitor<Node>

Type Parameters:
Node - Type of the tree nodes.
All Known Implementing Classes:
FindPositionVisitor, TreeVisit.ITreeVisitor.Pathless, ValueDescriptorNodeVisitor
Enclosing class:
TreeVisit
public static interface TreeVisit.ITreeVisitor<Node>
Visitor for a tree data structure.
Since:
8.2.0
Author:
XIMA MEDIA GmbH

  • Method Details

    • enter

      default TreeVisit.ETreeVisitResult enter(Node node, List<TreeVisit.TreePathFragment<Node>> path)
      Enters a tree node. This is called when the node is first reached, before any visitor methods are called on child nodes. See TreeVisit for an example of the call order.
      Parameters:
      node - A tree node.
      path - The path of the node, i.e. all parents of the node. This is always an empty list when includePath is set to false
      Returns:
      How to proceed with the tree visit.

    • exit

      default boolean exit(Node node, List<TreeVisit.TreePathFragment<Node>> path)
      Exists a tree node. This is called at the end, after all children were visited. No more visitor methods will be called on any children of the node. See TreeVisit for an example of the call order.
      Parameters:
      node - A tree node.
      path - The path of the node, i.e. all parents of the node. This is always an empty list when includePath is set to false
      Returns:
      true to continue with the tree visit, false to exit the visit (see TreeVisit.ETreeVisitResult.QUIT).

    • visit

      default boolean visit(Node node, List<TreeVisit.TreePathFragment<Node>> path)
      Visits a tree node. This is called between enter and exit. See TreeVisit for an example of the call order.
      Parameters:
      node - A tree node.
      path - The path of the node, i.e. all parents of the node. This is always an empty list when includePath is set to false
      Returns:
      true to continue with the tree visit, false to exit the visit (see TreeVisit.ETreeVisitResult.QUIT).