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) -> {

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

@@ -32,18 +32,39 @@ public interface RegionSystem {
 
     RegionSystem INSTANCE = init();
 
+    /**
+     * Loads and initializes the Regions and anything that should be loaded on startup.
+     */
     void load();
+
+    /**
+     * Saves anything that should be written to file on either CRIUSleepEvent or plugin disable.
+     */
     void save();
 
+    /**
+     * Returns the GlobalRegion. This Region should have their {@link Region#getID()} return the
+     * '00000000-0000-0000-0000-000000000000' UUID for easier retrieval with {@link #getRegion(UUID)}.
+     */
     @NonNull
     Region getGlobalRegion();
 
+    /**
+     * Should return a Region that is present at the specific Location or the {@link #getGlobalRegion()}
+     * if none are present.
+     */
     @NonNull
     Region get(@NonNull Location location);
 
+    /**
+     * Should return the Region by their UUID.
+     */
     @CheckReturnValue
     Optional<Region> getRegion(@NonNull UUID id);
 
+    /**
+     * Does and should not contain the GlobalRegion returned by {@link #getGlobalRegion()}.
+     */
     @NonNull
     Stream<Region> getRegions();