类 TreeVisitor


  • public class TreeVisitor
    extends java.lang.Object
    Do a depth first walk of a tree, applying pre() and post() actions as we discover and finish nodes.
    • 方法概要

      所有方法 实例方法 具体方法 
      修饰符和类型 方法 说明
      java.lang.Object visit​(java.lang.Object t, TreeVisitorAction action)
      Visit every node in tree t and trigger an action for each node before/after having visited all of its children.
      • 从类继承的方法 java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • 构造器详细资料

      • TreeVisitor

        public TreeVisitor​(TreeAdaptor adaptor)
      • TreeVisitor

        public TreeVisitor()
    • 方法详细资料

      • visit

        public java.lang.Object visit​(java.lang.Object t,
                                      TreeVisitorAction action)
        Visit every node in tree t and trigger an action for each node before/after having visited all of its children. Execute both actions even if t has no children. If a child visit yields a new child, it can update its parent's child list or just return the new child. The child update code works even if the child visit alters its parent and returns the new tree. Return result of applying post action to this node.