IndexFileNames.cs
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上传日期:2013-09-30
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- /*
- * Copyright 2004 The Apache Software Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- using System;
- namespace Lucene.Net.Index
- {
-
- /// <summary> Useful constants representing filenames and extensions used by lucene
- ///
- /// </summary>
- /// <author> Bernhard Messer
- /// </author>
- /// <version> $rcs = ' $Id: Exp $ ' ;
- /// </version>
- sealed class IndexFileNames
- {
-
- /// <summary>Name of the index segment file </summary>
- internal const System.String SEGMENTS = "segments";
-
- /// <summary>Name of the index deletable file </summary>
- internal const System.String DELETABLE = "deletable";
-
- /// <summary> This array contains all filename extensions used by Lucene's index files, with
- /// one exception, namely the extension made up from <code>.f</code> + a number.
- /// Also note that two of Lucene's files (<code>deletable</code> and
- /// <code>segments</code>) don't have any filename extension.
- /// </summary>
- internal static readonly System.String[] INDEX_EXTENSIONS = new System.String[]{"cfs", "fnm", "fdx", "fdt", "tii", "tis", "frq", "prx", "del", "tvx", "tvd", "tvf", "tvp"};
-
- /// <summary>File extensions of old-style index files </summary>
- internal static readonly System.String[] COMPOUND_EXTENSIONS = new System.String[]{"fnm", "frq", "prx", "fdx", "fdt", "tii", "tis"};
-
- /// <summary>File extensions for term vector support </summary>
- internal static readonly System.String[] VECTOR_EXTENSIONS = new System.String[]{"tvx", "tvd", "tvf"};
- }
- }