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From bmes...@apache.org
Subject svn commit: r189791 - /lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java
Date Thu, 09 Jun 2005 18:57:20 GMT
Author: bmesser
Date: Thu Jun  9 11:57:20 2005
New Revision: 189791

URL: http://svn.apache.org/viewcvs?rev=189791&view=rev
Log:
useful constants representing filenames and extensions used by lucene

Added:
    lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java

Added: lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java
URL: http://svn.apache.org/viewcvs/lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java?rev=189791&view=auto
==============================================================================
--- lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java (added)
+++ lucene/java/trunk/src/java/org/apache/lucene/index/IndexFileNames.java Thu Jun  9 11:57:20
2005
@@ -0,0 +1,53 @@
+package org.apache.lucene.index;
+
+/**
+ * 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.
+ */
+
+/**
+ * Useful constants representing filenames and extensions used by lucene
+ * 
+ * @author Bernhard Messer
+ * @version $rcs = ' $Id: Exp $ ' ;
+ */
+final class IndexFileNames {
+
+  /** Name of the index segment file */
+  static final String SEGMENTS = "segments";
+  
+  /** Name of the index deletable file */
+  static final String DELETABLE = "deletable";
+  
+  /**
+   * 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.
+   */
+  static final String INDEX_EXTENSIONS[] = new String[] {
+      "cfs", "fnm", "fdx", "fdt", "tii", "tis", "frq", "prx", "del",
+      "tvx", "tvd", "tvf", "tvp" };
+  
+  /** File extensions of old-style index files */
+  static final String COMPOUND_EXTENSIONS[] = new String[] {
+    "fnm", "frq", "prx", "fdx", "fdt", "tii", "tis"
+  };
+  
+  /** File extensions for term vector support */
+  static final String VECTOR_EXTENSIONS[] = new String[] {
+    "tvx", "tvd", "tvf"
+  };
+  
+}



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