helliker.id3
Class MP3Comparator

java.lang.Object
  helliker.id3.MP3Comparator

All Implemented Interfaces:

java.util.Comparator

public class MP3Comparator

extends java.lang.Object

implements java.util.Comparator

Constructor Summary

MP3Comparator()

Method Summary

private boolean	accept(java.lang.String str1, java.lang.String str2) Returns true if the two parameters are acceptable comparison values.
int	compare(java.lang.Object o1, java.lang.Object o2) Compares the objects.
boolean	equals(java.lang.Object obj) Returns true if the specified object is an MP3Comparator

Methods inherited from class java.lang.Object

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

Constructor Detail

MP3Comparator

public MP3Comparator()

Method Detail

equals

public boolean equals(java.lang.Object obj)

Returns true if the specified object is an MP3Comparator

Specified by:

equals in interface java.util.Comparator

Parameters:

obj - the object to test

Returns:

true if the object is an MP3Comparator

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Compares the objects. Non-MP3File objects will always be less then an MP3File object and if neither objects are MP3Files then they are considered equal. A series of tests are conducted to determine the the outcome. First the artist is tested, then the album, then the track, then the title, then the path.

Specified by:

compare in interface java.util.Comparator

Parameters:

o1 - one object to compare

o2 - another object to compare

Returns:

a positive number if o1 > o2, zero if o1 = o2, and a negative number if o1 < o2

accept

private boolean accept(java.lang.String str1,
                       java.lang.String str2)

Returns true if the two parameters are acceptable comparison values. In order to be acceptable, both parameters must not be empty and they must not be equal.

Parameters:

str1 - the first parameter

str2 - the second parameter

Returns:

true if the two parameters are acceptable comparison values