zjureel commented on code in PR #418:
URL: https://github.com/apache/flink-table-store/pull/418#discussion_r1038979666
##########
flink-table-store-core/src/main/java/org/apache/flink/table/store/file/utils/RecordReaderUtils.java:
##########
@@ -44,4 +45,49 @@ public static <T> void forEachRemaining(
reader.close();
}
}
+
+ /**
+ * Returns a {@link RecordReader} that applies {@code function} to each
element of {@code
+ * fromReader}.
+ */
+ public static <L, R> RecordReader<R> transform(
+ RecordReader<L> fromReader, Function<L, R> function) {
+ return new RecordReader<R>() {
+ @Override
+ public RecordIterator<R> readBatch() throws IOException {
Review Comment:
Add @Nullable?
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