jnaous commented on a change in pull request #9111: Add HashJoinSegment, a
virtual segment for joins.
URL: https://github.com/apache/druid/pull/9111#discussion_r365269485
##########
File path: core/src/main/java/org/apache/druid/common/config/NullHandling.java
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@@ -118,6 +118,27 @@ public static Double defaultDoubleValue()
return replaceWithDefault() ? ZERO_DOUBLE : null;
}
+ /**
+ * Returns the default value for an object of the provided class. Will be
null in SQL-compatible null handling mode.
+ * May be null or some non-null default value when not in SQL-compatible
null handling mode.
+ */
+ @Nullable
+ @SuppressWarnings("unchecked")
+ public static <T> T defaultValueForClass(final Class<T> clazz)
Review comment:
Missing a unit test to ensure maintainability.
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