org.apache.commons.io.filefilter
Class NotFileFilter

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

All Implemented Interfaces:

java.io.FileFilter, java.io.FilenameFilter, java.io.Serializable, IOFileFilter

public class NotFileFilter
extends AbstractFileFilter
implements java.io.Serializable

This filter produces a logical NOT of the filters specified.

Since:

Commons IO 1.0

Version:

$Revision: 591058 $ $Date: 2007-11-01 15:47:05 +0000 (Thu, 01 Nov 2007) $

Author:

Stephen Colebourne

See Also:

Serialized Form

Field Summary

private IOFileFilter

filter The filter

Constructor Summary

NotFileFilter(IOFileFilter filter)
Constructs a new file filter that NOTs the result of another filters.

Method Summary

boolean	accept(java.io.File file) Checks to see if both filters are true.
boolean	accept(java.io.File file, java.lang.String name) Checks to see if both filters are true.
java.lang.String	toString() Provide a String representaion of this file filter.

Methods inherited from class java.lang.Object

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

Field Detail

filter

private final IOFileFilter filter

The filter

Constructor Detail

NotFileFilter

public NotFileFilter(IOFileFilter filter)

Constructs a new file filter that NOTs the result of another filters.

Parameters:

filter - the filter, must not be null

Throws:

java.lang.IllegalArgumentException - if the filter is null

Method Detail

accept

public boolean accept(java.io.File file)

Checks to see if both filters are true.

Specified by:

accept in interface java.io.FileFilter

Specified by:

accept in interface IOFileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File to check

Returns:

true if the filter returns false

accept

public boolean accept(java.io.File file,
                      java.lang.String name)

Checks to see if both filters are true.

Specified by:

accept in interface java.io.FilenameFilter

Specified by:

accept in interface IOFileFilter

Overrides:

accept in class AbstractFileFilter

Parameters:

file - the File directory

name - the filename

Returns:

true if the filter returns false

toString

public java.lang.String toString()

Provide a String representaion of this file filter.

Overrides:

toString in class AbstractFileFilter

Returns:

a String representaion