001    /*
002     *  Licensed to the Apache Software Foundation (ASF) under one
003     *  or more contributor license agreements.  See the NOTICE file
004     *  distributed with this work for additional information
005     *  regarding copyright ownership.  The ASF licenses this file
006     *  to you under the Apache License, Version 2.0 (the
007     *  "License"); you may not use this file except in compliance
008     *  with the License.  You may obtain a copy of the License at
009     *  
010     *    http://www.apache.org/licenses/LICENSE-2.0
011     *  
012     *  Unless required by applicable law or agreed to in writing,
013     *  software distributed under the License is distributed on an
014     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     *  KIND, either express or implied.  See the License for the
016     *  specific language governing permissions and limitations
017     *  under the License. 
018     *  
019     */
020    
021    package org.apache.directory.server.dns.io.encoder;
022    
023    
024    /**
025     * 5.2 NXT RDATA Format
026     * 
027     *    The RDATA for an NXT RR consists simply of a domain name followed by
028     *    a bit map.
029     * 
030     *    The type number for the NXT RR is 30.
031     * 
032     *                            1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3
033     *        0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
034     *       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
035     *       |         next domain name                                      /
036     *       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
037     *       |                    type bit map                               /
038     *       +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
039     * 
040     *    The NXT RR type bit map is one bit per RR type present for the owner
041     *    name similar to the WKS socket bit map.  The first bit represents RR
042     *    type zero (an illegal type which should not be present.) A one bit
043     *    indicates that at least one RR of that type is present for the owner
044     *    name.  A zero indicates that no such RR is present.  All bits not
045     *    specified because they are beyond the end of the bit map are assumed
046     *    to be zero.  Note that bit 30, for NXT, will always be on so the
047     *    minimum bit map length is actually four octets.  The NXT bit map
048     *    should be printed as a list of RR type mnemonics or decimal numbers
049     *    similar to the WKS RR.
050     * 
051     *    The domain name may be compressed with standard DNS name compression
052     *    when being transmitted over the network.  The size of the bit map can
053     *    be inferred from the RDLENGTH and the length of the next domain name.
054     * 
055     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
056     * @version $Rev: 501160 $, $Date: 2007-01-29 20:41:33 +0100 (Mon, 29 Jan 2007) $
057     */
058    public class NextNameRecordEncoder
059    {
060    }