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17 package org.apache.commons.vfs.provider;
18
19 import org.apache.commons.vfs.FileSystemOptions;
20
21 /***
22 * Used to identify a filesystem
23 *
24 * @author <a href="mailto:imario@apache.org">Mario Ivankovits</a>
25 * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $
26 */
27 class FileSystemKey implements Comparable
28 {
29 private final static FileSystemOptions EMPTY_OPTIONS = new FileSystemOptions();
30
31 final Comparable key;
32 final FileSystemOptions fileSystemOptions;
33
34 FileSystemKey(final Comparable key, final FileSystemOptions fileSystemOptions)
35 {
36 this.key = key;
37 if (fileSystemOptions != null)
38 {
39 this.fileSystemOptions = fileSystemOptions;
40 }
41 else
42 {
43 this.fileSystemOptions = EMPTY_OPTIONS;
44 }
45 }
46
47 public int compareTo(Object o)
48 {
49 FileSystemKey fk = (FileSystemKey) o;
50
51 int ret = key.compareTo(fk.key);
52 if (ret != 0)
53 {
54
55 return ret;
56 }
57
58 return fileSystemOptions.compareTo(fk.fileSystemOptions);
59 }
60 }