KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > vfs > FileDepthSelector


1 /*
2  * Copyright 2002-2005 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 package org.apache.commons.vfs;
17
18 /**
19  * A {@link FileSelector} that selects all files in a particular depth range.
20  *
21  * @author <a HREF="mailto:adammurdoch@apache.org">Adam Murdoch</a>
22  */
23 public class FileDepthSelector
24     implements FileSelector
25 {
26     private final int minDepth;
27     private final int maxDepth;
28
29     public FileDepthSelector(int minDepth, int maxDepth)
30     {
31         this.minDepth = minDepth;
32         this.maxDepth = maxDepth;
33     }
34
35     /**
36      * Determines if a file or folder should be selected.
37      */
38     public boolean includeFile(final FileSelectInfo fileInfo)
39     {
40         final int depth = fileInfo.getDepth();
41         return (minDepth <= depth && depth <= maxDepth);
42     }
43
44     /**
45      * Determines whether a folder should be traversed.
46      */
47     public boolean traverseDescendents(final FileSelectInfo fileInfo)
48     {
49         return (fileInfo.getDepth() < maxDepth);
50     }
51 }
52
Popular Tags