org.apache.commons.io.comparator

Class DefaultFileComparator

public class DefaultFileComparator extends Object implements Comparator, Serializable

Compare two files using the default File#compareTo(File) method.

This comparator can be used to sort lists or arrays of files by using the default file comparison.

Example of sorting a list of files using the DEFAULT_COMPARATOR singleton instance:

       List<File> list = ...
       Collections.sort(list, DefaultFileComparator.DEFAULT_COMPARATOR);
 

Example of doing a reverse sort of an array of files using the DEFAULT_REVERSE singleton instance:

       File[] array = ...
       Arrays.sort(array, DefaultFileComparator.DEFAULT_REVERSE);
 

Since: Commons IO 1.4

Version: $Revision: 609243 $ $Date: 2008-01-06 00:30:42 +0000 (Sun, 06 Jan 2008) $

Field Summary
static ComparatorDEFAULT_COMPARATOR
Singleton default comparator instance
static ComparatorDEFAULT_REVERSE
Singleton reverse default comparator instance
Method Summary
intcompare(Object obj1, Object obj2)
Compare the two files using the File#compareTo(File) method.

Field Detail

DEFAULT_COMPARATOR

public static final Comparator DEFAULT_COMPARATOR
Singleton default comparator instance

DEFAULT_REVERSE

public static final Comparator DEFAULT_REVERSE
Singleton reverse default comparator instance

Method Detail

compare

public int compare(Object obj1, Object obj2)
Compare the two files using the File#compareTo(File) method.

Parameters: obj1 The first file to compare obj2 The second file to compare

Returns: the result of calling file1's File#compareTo(File) with file2 as the parameter.

Copyright (c) 2002-2011 Apache Software Foundation