o
org.apache.spark.sql.catalyst.expressions
CallMethodViaReflection
Companion class CallMethodViaReflection
object CallMethodViaReflection extends Serializable
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- def findMethod(className: String, methodName: String, argTypes: Seq[DataType]): Option[Method]
Finds a Java static method using reflection that matches the given argument types, and whose return type is string.
Finds a Java static method using reflection that matches the given argument types, and whose return type is string.
The types sequence must be the valid types defined in typeMapping.
This is made public for unit testing.
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- val typeMapping: Map[DataType, Seq[Class[_]]]
Mapping from Spark's type to acceptable JVM types.
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