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https://reviews.apache.org/r/21684/
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Review request for DataFu and Matthew Hayes.
Bugs: DATAFU-50
https://issues.apache.org/jira/browse/DATAFU-50
Repository: datafu
Description
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* SimpleEvalFunc now extends ContextualEvalFunc (rather than
plain-old-EvalFunc), letting front end talk to back end
* ContextualEvalFunc has a hook method onReady(in_schema, out_schema) --
this is sugar for UDFs that simply want an opportunity to capture or set values
once for a job, rather than legitimately wanting to override outputSchema().
* Updates AliasableEvalFunc to use onReady
Diffs
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datafu-pig/src/main/java/datafu/pig/sets/SetDifference.java b6469e9
datafu-pig/src/main/java/datafu/pig/util/AliasableEvalFunc.java ee2c3f3
datafu-pig/src/main/java/datafu/pig/util/ContextualEvalFunc.java c534b77
datafu-pig/src/main/java/datafu/pig/util/SimpleEvalFunc.java 2d262b4
datafu-pig/src/test/java/datafu/test/pig/util/EvalFuncTests.java PRE-CREATION
datafu-pig/src/test/java/datafu/test/pig/util/SchemaToString.java
PRE-CREATION
Diff: https://reviews.apache.org/r/21684/diff/
Testing
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Thanks,
Philip (flip) Kromer
