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[Spark-9062] [ML] Change output type of Tokenizer to Array(String, true) #7414

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[Spark-9062] [ML] Change output type of Tokenizer to Array(String, true) #7414

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4 changes: 2 additions & 2 deletions mllib/src/main/scala/org/apache/spark/ml/feature/Tokenizer.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ class Tokenizer(override val uid: String) extends UnaryTransformer[String, Seq[S
require(inputType == StringType, s"Input type must be string type but got $inputType.")
}

override protected def outputDataType: DataType = new ArrayType(StringType, false)
override protected def outputDataType: DataType = new ArrayType(StringType, true)

override def copy(extra: ParamMap): Tokenizer = defaultCopy(extra)
}
Expand Down Expand Up @@ -113,7 +113,7 @@ class RegexTokenizer(override val uid: String)
require(inputType == StringType, s"Input type must be string type but got $inputType.")
}

override protected def outputDataType: DataType = new ArrayType(StringType, false)
override protected def outputDataType: DataType = new ArrayType(StringType, true)

override def copy(extra: ParamMap): RegexTokenizer = defaultCopy(extra)
}