Feedback changes javadoc and param rename

Author: inv-jishnu

data-loader/core/src/main/java/com/scalar/db/dataloader/core/dataexport/ExportManager.java

@@ -36,7 +36,7 @@
 public abstract class ExportManager {
   private static final Logger logger = LoggerFactory.getLogger(ExportManager.class);
 
-  private final DistributedTransactionManager distributedTransactionManager;
+  private final DistributedTransactionManager manager;
   private final ScalarDbDao dao;
   private final ProducerTaskFactory producerTaskFactory;
   private final Object lock = new Object();
@@ -89,7 +89,7 @@ public ExportReport startExport(
       boolean isJson = exportOptions.getOutputFileFormat() == FileFormat.JSON;
 
       try (TransactionManagerCrudOperable.Scanner scanner =
-          createScanner(exportOptions, dao, distributedTransactionManager)) {
+          createScanner(exportOptions, dao, manager)) {
 
         Iterator<Result> iterator = scanner.iterator();
         AtomicBoolean isFirstBatch = new AtomicBoolean(true);

data-loader/core/src/main/java/com/scalar/db/dataloader/core/dataimport/dao/ScalarDbDao.java

@@ -224,9 +224,8 @@ public List<Result> scan(
    * Creates a {@link TransactionManagerCrudOperable.Scanner} instance for reading data from
    * ScalarDB.
    *
-   * <p>This method builds and executes a {@link Scan} operation for the specified table and returns
-   * a scanner that iterates over the retrieved records. It operates in storage mode using a {@link
-   * DistributedTransactionManager}.
+   * <p>a scanner that iterates over the retrieved records. It performs the scan transactionally
+   * using a {@link DistributedTransactionManager}.
    *
    * @param namespace the ScalarDB namespace to scan
    * @param table the ScalarDB table name
@@ -258,9 +257,8 @@ public TransactionManagerCrudOperable.Scanner createScanner(
    * Creates a {@link TransactionManagerCrudOperable.Scanner} instance for reading data from
    * ScalarDB.
    *
-   * <p>This method builds and executes a {@link Scan} operation using the provided parameters and
-   * returns a scanner that iterates over the matching records. It is used in storage mode through a
-   * {@link DistributedTransactionManager}.
+   * <p>returns a scanner that iterates over the matching records. The scan is performed
+   * transactionally through a {@link DistributedTransactionManager}.
    *
    * @param namespace the ScalarDB namespace to scan
    * @param table the ScalarDB table name