beagled/Lucene.Net/Index/IndexFileNames.cs

   1 /*
   2  * Copyright 2004 The Apache Software Foundation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 using System;
  18
  19 namespace Lucene.Net.Index
  20 {
  21
  22         /// <summary> Useful constants representing filenames and extensions used by lucene
  23         ///
  24         /// </summary>
  25         /// <author>  Bernhard Messer
  26         /// </author>
  27         /// <version>  $rcs = ' $Id: IndexFileNames.cs,v 1.2 2006/10/02 17:08:52 joeshaw Exp $ ' ;
  28         /// </version>
  29         sealed class IndexFileNames
  30         {
  31
  32                 /// <summary>Name of the index segment file </summary>
  33                 internal const System.String SEGMENTS = "segments";
  34
  35                 /// <summary>Name of the index deletable file </summary>
  36                 internal const System.String DELETABLE = "deletable";
  37
  38                 /// <summary> This array contains all filename extensions used by Lucene's index files, with
  39                 /// one exception, namely the extension made up from <code>.f</code> + a number.
  40                 /// Also note that two of Lucene's files (<code>deletable</code> and
  41                 /// <code>segments</code>) don't have any filename extension.
  42                 /// </summary>
  43                 internal static readonly System.String[] INDEX_EXTENSIONS = new System.String[]{"cfs", "fnm", "fdx", "fdt", "tii", "tis", "frq", "prx", "del", "tvx", "tvd", "tvf", "tvp"};
  44
  45                 /// <summary>File extensions of old-style index files </summary>
  46                 internal static readonly System.String[] COMPOUND_EXTENSIONS = new System.String[]{"fnm", "frq", "prx", "fdx", "fdt", "tii", "tis"};
  47
  48                 /// <summary>File extensions for term vector support </summary>
  49                 internal static readonly System.String[] VECTOR_EXTENSIONS = new System.String[]{"tvx", "tvd", "tvf"};
  50         }
  51 }