[SPARK-32771][DOCS] The example of expressions.Aggregator in Javadoc / Scaladoc is wrong #29617
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What changes were proposed in this pull request?
This PR modifies an example for
expressions.Aggregator
in Javadoc and Scaladoc.The definition of
bufferEncoder
andoutputEncoder
are added.Why are the changes needed?
To correct the example.
The current example is wrong and doesn't work because
bufferEncoder
andoutputEncoder
are not defined.Does this PR introduce any user-facing change?
Yes.
Before this change, the scaladoc and javadoc are like as follows.
After this change, the docs are like as follows.
How was this patch tested?
Build with
build/sbt unidoc
and confirmed the generated javadoc/scaladoc and got the screenshots above.