package org.jaudiotagger.tag.id3.valuepair;

 import org.jaudiotagger.tag.reference.GenreTypes;

 import java.util.Collections;

 import java.util.List;

 /**

  * ID3V2 Genre list

  * <p/>

  * <p>Merging of Id3v2 genres and the extended ID3v2 genres</p>

  */

 public class V2GenreTypes

 {

     private static V2GenreTypes v2GenresTypes;

     private V2GenreTypes()

     {

     }

     public static V2GenreTypes getInstanceOf()

     {

         if (v2GenresTypes == null)

         {

             v2GenresTypes = new V2GenreTypes();

         }

         return v2GenresTypes;

     }

     /**

      * @return list of all valid v2 genres in alphabetical order

      */

     public List<String> getAlphabeticalValueList()

     {

         List<String> genres = GenreTypes.getInstanceOf().getAlphabeticalValueList();

         genres.add(ID3V2ExtendedGenreTypes.CV.getDescription());

         genres.add(ID3V2ExtendedGenreTypes.RX.getDescription());

         //Sort

         Collections.sort(genres);

         return genres;

     }

 }