Add JavaDoc to RegionSystem

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/BauSystem.java

@@ -40,6 +40,7 @@ import de.steamwar.bausystem.worlddata.WorldData;
 import de.steamwar.command.AbstractValidator;
 import de.steamwar.command.SWCommand;
 import de.steamwar.command.SWCommandUtils;
+import de.steamwar.core.CRIUSleepEvent;
 import de.steamwar.core.Core;
 import de.steamwar.core.WorldEditRendererCUIEditor;
 import de.steamwar.linkage.LinkedInstance;
@@ -54,6 +55,7 @@ import lombok.Getter;
 import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
 import org.bukkit.event.HandlerList;
 import org.bukkit.event.Listener;
 import org.bukkit.plugin.Plugin;
@@ -72,7 +74,7 @@ import java.util.function.Consumer;
 import java.util.logging.Level;
 import java.util.stream.Collectors;
 
-public class BauSystem extends JavaPlugin {
+public class BauSystem extends JavaPlugin implements Listener {
 
     // This should be treated as final!
     public static Message MESSAGE;
@@ -212,6 +214,11 @@ public class BauSystem extends JavaPlugin {
         new WorldEditRendererCUIEditor();
     }
 
+    @EventHandler
+    public void onCRIUSleep(CRIUSleepEvent event) {
+        RegionSystem.INSTANCE.save();
+    }
+
     @Override
     public void onDisable() {
         instances.forEach((aClass, o) -> {