Check if a player is brand new?

Hey guys, I was curious of how I can check if a player is brand new.
I don't want to store in a file somewhere that list ALL the players that have joined or anything.
Is there a better way of doing this? If so, please let me know, thanks

 

LMFAO Wow! What a great boolean ;D
Exactly what I needed. Thank you very much Skepter

 

How does this look guys? Or is this bad to teleport a player on join?

Code (Text):

@EventHandler
    public void onJoin(PlayerJoinEvent e) {
        if (!e.getPlayer().hasPlayedBefore()) {
            Location l = new Location(Bukkit.getWorld("world"), getConfig().getDouble("Spawn.x"), getConfig().getDouble("Spawn.y"), getConfig().getDouble("Spawn.z"), getConfig().getLong("Spawn.yaw"), getConfig().getLong("Spawn.pitch"));
            e.getPlayer().teleport(l);
        }
    }