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Java > Open Source Codes > org > apache > lucene > demo > DeleteFiles


1 package org.apache.lucene.demo;
2
3 /**
4  * Copyright 2004 The Apache Software Foundation
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19 import java.io.IOException JavaDoc;
20
21 import org.apache.lucene.store.Directory;
22 import org.apache.lucene.store.FSDirectory;
23 import org.apache.lucene.index.IndexReader;
24 import org.apache.lucene.index.Term;
25
26 class DeleteFiles {
27   public static void main(String JavaDoc[] args) {
28     try {
29       Directory directory = FSDirectory.getDirectory("demo index", false);
30       IndexReader reader = IndexReader.open(directory);
31
32 // Term term = new Term("path", "pizza");
33 // int deleted = reader.delete(term);
34
35 // System.out.println("deleted " + deleted +
36 // " documents containing " + term);
37
38       for (int i = 0; i < reader.maxDoc(); i++)
39     reader.delete(i);
40
41       reader.close();
42       directory.close();
43
44     } catch (Exception JavaDoc e) {
45       System.out.println(" caught a " + e.getClass() +
46              "\n with message: " + e.getMessage());
47     }
48   }
49 }
50
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