xxlaykxx commented on code in PR #837:
URL: https://github.com/apache/arrow-java/pull/837#discussion_r2336453507
##########
vector/src/main/codegen/templates/ComplexCopier.java:
##########
@@ -110,6 +114,21 @@ private static void writeValue(FieldReader reader,
FieldWriter writer) {
writer.writeNull();
}
break;
+ case EXTENSIONTYPE:
+ if (extensionTypeWriterFactory == null) {
+ throw new UnsupportedOperationException(
+ "EXTENSIONTYPE are not supported yet. Please provide an
ExtensionTypeWriterFactory." );
Review Comment:
yep, we need a factory to determine writer impl for extension type.
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