org.apache.commons.io.filefilter
Class DirectoryFileFilter

java.lang.Object
  org.apache.commons.io.filefilter.AbstractFileFilter
      org.apache.commons.io.filefilter.DirectoryFileFilter

All Implemented Interfaces:

FileFilter, FilenameFilter, IOFileFilter

public class DirectoryFileFilter

extends AbstractFileFilter

This filter accepts Files that are directories.

For example, here is how to print out a list of the current directory's subdirectories:

 File dir = new File(".");
 String[] files = dir.list( DirectoryFileFilter.INSTANCE );
 for ( int i = 0; i < files.length; i++ ) {
     System.out.println(files[i]);
 }
 

Since:

Commons IO 1.0

Version:

$Revision: 155419 $ $Date: 2005-02-26 13:02:41 +0000 (Sat, 26 Feb 2005) $

Field Summary

static IOFileFilter

INSTANCE Singleton instance of directory filter

Constructor Summary

protected

DirectoryFileFilter() Restrictive consructor.

Method Summary

boolean

accept(File file) Checks to see if the file is a directory.

Methods inherited from class org.apache.commons.io.filefilter.AbstractFileFilter

accept

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final IOFileFilter INSTANCE

Singleton instance of directory filter

Constructor Detail

DirectoryFileFilter

protected DirectoryFileFilter()

Restrictive consructor.

Method Detail

accept

public boolean accept(File file)

Checks to see if the file is a directory.

Specified by:

accept in interface IOFileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File to check

Returns:

true if the file is a directory