No other documentation other than what's in the javadoc, however you could look at the rest of the DataFu code for examples of its use, which should give you the general idea, like:
https://github.com/apache/incubator-datafu/blob/master/datafu-pig/src/main/java/datafu/pig/bags/EmptyBagToNullFields.java -Matt On Thu, Dec 17, 2015 at 12:47 PM, John Smith <lenov...@gmail.com> wrote: > Hello, > > is there any documentation how can I use ContextualEvalFunc? My intention > is to precompute output schema and pass those information - ideally one > JSON string/file from the fronted into the backend, then I can generate > code inside outputSchema method. > > > https://github.com/apache/incubator-datafu/blob/master/datafu-pig/src/main/java/datafu > /pig/util/ContextualEvalFunc.java > > > Thank you > > Best, > John >
