/* * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.jndi.dns; import java.util.Hashtable; /** * A NameNode represents a node in the DNS namespace. Each node * has a label, which is its name relative to its parent (so the * node at Sun.COM has label "Sun"). Each node has a hashtable of * children indexed by their labels converted to lower-case. * *
A node may be addressed from another by giving a DnsName * consisting of the sequence of labels from one node to the other. * *
Each node also has an isZoneCut flag, used to indicate * if the node is a zone cut. A zone cut is a node with an NS record * that is contained in one zone, but that actually belongs to a child zone. * *
All access is unsynchronized.
*
* @author Scott Seligman
*/
class NameNode {
private String label; // name of this node relative to its
// parent, or null for root of a tree
private Hashtable