Github user sunjincheng121 commented on a diff in the pull request:
https://github.com/apache/flink/pull/2653#discussion_r86542265
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/functions/utils/UserDefinedFunctionUtils.scala
---
@@ -135,6 +138,32 @@ object UserDefinedFunctionUtils {
}
/**
+ * Returns eval method matching the given signature of
[[TypeInformation]].
+ */
+ def getEvalMethod(
+ function: EvaluableFunction,
+ signature: Seq[TypeInformation[_]])
+ : Option[Method] = {
+ // We compare the raw Java classes not the TypeInformation.
+ // TypeInformation does not matter during runtime (e.g. within a
MapFunction).
+ val actualSignature = typeInfoToClass(signature)
+
+ function
+ .getEvalMethods
--- End diff --
get evelMethods by
UserDefinedFunctionUtils.checkAndExtractEvalMethods(clazz)
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