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19 package org.apache.james.util.io;
20
21 import java.io.File;
22 import java.io.FilenameFilter;
23
24 /***
25 * This takes a <code>FilenameFilter<code> as input and inverts the selection.
26 * This is used in retrieving files that are not accepted by a filter.
27 *
28 * @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
29 * @version CVS $Revision: 494012 $ $Date: 2007-01-08 10:23:58 +0000 (Mon, 08 Jan 2007) $
30 * @since 4.0
31 */
32 public class InvertedFileFilter
33 implements FilenameFilter
34 {
35 private final FilenameFilter m_originalFilter;
36
37 public InvertedFileFilter( final FilenameFilter originalFilter )
38 {
39 m_originalFilter = originalFilter;
40 }
41
42 public boolean accept( final File file, final String name )
43 {
44 return !m_originalFilter.accept( file, name );
45 }
46 }
47
48