Update FileProcessor.java

Author: burdoto

src/common-util/main/java/org/comroid/common/io/FileProcessor.java

@@ -3,6 +3,7 @@
 import org.comroid.common.Disposable;
 
 import java.io.IOException;
+import java.util.UUID;
 
 public interface FileProcessor extends Disposable {
     FileHandle getFile();
@@ -21,4 +22,28 @@ default void close() throws MultipleExceptions {
             disposeThrow();
         }
     }
+
+    interface Underlying extends FileProcessor {
+        FileProcessor getUnderlyingFileProcessor();
+
+        @Override
+        default FileHandle getFile() {
+            return getUnderlyingFileProcessor().getFile();
+        }
+
+        @Override
+        default int storeData() throws IOException {
+            return getUnderlyingFileProcessor().storeData();
+        }
+
+        @Override
+        default int reloadData() throws IOException {
+            return getUnderlyingFileProcessor().reloadData();
+        }
+
+        @Override
+        default UUID getUUID() {
+            return getUnderlyingFileProcessor().getUUID();
+        }
+    }
 }