public class ClassExemple implements Listener {

    @EventHandler
    public void onRegister (TotemRegisterEvent event ) {
        event. setFactionListener ( new MyCustomPlugin ( ) ) ;
    }

    public class MyCustomPlugin implements FactionListener {

        // Retrieve the name of your faction or your team with this method, you
        // have the choice between using a Player or the name of a player, in
        // the plugin it will be the Player which will be used for both methods.
        @Override
        public String getFactionTag (Player player ) {
            return getFactionTag (player. getName ( ) ) ;
        }

        @Override
        public String getFactionTag ( String player ) {
            return null ;
        }

        @Override
        public List <Player > getOnlinePlayer ( String player ) {
            return null ;
        }

        @Override
        public List <Player > getOnlinePlayer (Player player ) {
            return getOnlinePlayer (player. getCustomName ( ) ) ;
        }

        @Override
        public void factionTagChange (TotemFaction totemFaction, String newName ) {
            manager. updateFaction (totemFaction, newName ) ;
        }

        @EventHandler
        public void youEvet ( Event event ) {

            TotemFaction totemFaction = TotemManager. getInstance ( ). getFaction ( "you faction tag" ) ;
            String newName = "youNewName" ;

            this. factionTagChange (totemFaction, newName ) ;
        }

    }

}