RussellSpitzer commented on code in PR #14040:
URL: https://github.com/apache/iceberg/pull/14040#discussion_r2356840817
##########
parquet/src/main/java/org/apache/iceberg/parquet/Parquet.java:
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@@ -1161,6 +1160,61 @@ public static class ReadBuilder implements
InternalData.ReadBuilder {
private NameMapping nameMapping = null;
private ByteBuffer fileEncryptionKey = null;
private ByteBuffer fileAADPrefix = null;
+ private Class<? extends StructLike> rootType = null;
+ private Map<Integer, Class<? extends StructLike>> customTypes =
Maps.newHashMap();
+
+ public interface ReaderFunction {
+ Function<MessageType, ParquetValueReader<?>> apply();
+
+ default ReaderFunction withRootType(Class<? extends StructLike>
rootType) {
+ return this;
+ }
+
+ default ReaderFunction withCustomTypes(
+ Map<Integer, Class<? extends StructLike>> customTypes) {
+ return this;
+ }
+
+ default ReaderFunction withSchema(Schema schema) {
+ return this;
+ }
+ }
+
+ private static class UnaryReaderFunction implements ReaderFunction {
Review Comment:
This is an instance of the original readerFunc which takes only messageType
as an arg.
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