Initial rudimentary implementation (not done) of PlotRegionBackups

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

@@ -27,6 +27,7 @@ import javax.annotation.CheckReturnValue;
 import javax.annotation.Nullable;
 import java.util.List;
 import java.util.Optional;
+import java.util.function.Function;
 
 public interface RegionBackups {
 
@@ -39,7 +40,6 @@ public interface RegionBackups {
         public final int maxBackups;
     }
 
-    @RequiredArgsConstructor
     @Getter
     abstract class Backup implements RegionDataStore, Comparable<Backup> {
         @NonNull
@@ -49,7 +49,13 @@ public interface RegionBackups {
         private final String name;
 
         @NonNull
-        private final RegionData regionData;
+        protected final RegionData regionData;
+
+        protected Backup(@NonNull BackupType type, @NonNull String name, @NonNull Function<Backup, RegionData> regionDataConstructor) {
+            this.type = type;
+            this.name = name;
+            regionData = regionDataConstructor.apply(this);
+        }
 
         @CheckReturnValue
         public abstract boolean load();
@@ -73,7 +79,7 @@ public interface RegionBackups {
     List<Backup> list();
 
     @Nullable
-    Backup get(String name);
+    Backup get(@NonNull String name);
 
     RegionBackups EMPTY = new RegionBackups() {
         @Override
@@ -88,7 +94,7 @@ public interface RegionBackups {
 
         @Nullable
         @Override
-        public Backup get(String name) {
+        public Backup get(@NonNull String name) {
             return null;
         }
     };