Add JavaDoc to ConfigUpdater

BauSystem_Main/src/de/steamwar/bausystem/configplayer/ConfigUpdater.java

@@ -18,8 +18,6 @@ import java.util.logging.Level;
 @Linked(LinkageType.LISTENER)
 public class ConfigUpdater implements Listener {
 
-    // TODO: implement everything
-
     private final Map<UUID, YAPIONObject> playerConfigurations = new HashMap<>();
 
     private static final Map<Integer, ConfigConverter> CONFIG_CONVERTER_MAP = new HashMap<>();
@@ -30,23 +28,35 @@ public class ConfigUpdater implements Listener {
 
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
-        // Load call -> Database
+        get(event.getPlayer());
     }
 
     @EventHandler
     public void onPlayerQuit(PlayerQuitEvent event) {
-        // Save call -> Database
+        save(event.getPlayer());
+        playerConfigurations.remove(event.getPlayer().getUniqueId());
     }
 
-    public YAPIONObject load(Player player) {
+    /**
+     * Get a PlayerConfig, optionally loads it from the DataBase and migrates it if necessary.
+     *
+     * @param player the player from whom to get the config.
+     * @return the config object
+     */
+    public YAPIONObject get(Player player) {
         if (!playerConfigurations.containsKey(player.getUniqueId())) {
-            // Load call -> Database
+            // TODO: Load call -> Database
         }
         return playerConfigurations.get(player.getUniqueId());
     }
 
+    /**
+     * Save a PlayerConfig, this does not remove the key value mapping from the map.
+     *
+     * @param player the player to save the config.
+     */
     public void save(Player player) {
-        // Save call -> Database
+        // TODO: Save call -> Database
     }
 
     private YAPIONObject update(YAPIONObject yapionObject) {