Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/2356#discussion_r18121806
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/api/python/PythonMLLibAPI.scala ---
@@ -284,6 +285,42 @@ class PythonMLLibAPI extends Serializable {
}
/**
+ * Java stub for Python mllib Word2Vec fit(). This stub returns a
+ * handle to the Java object instead of the content of the Java object.
+ * Extra care needs to be taken in the Python code to ensure it gets
freed on
+ * exit; see the Py4J documentation.
+ * @param dataJRDD Input JavaRDD
+ * @return A handle to java Word2VecModelWrapper instance at python side
+ */
+ def trainWord2Vec(dataJRDD: JavaRDD[java.util.ArrayList[String]]):
Word2VecModelWrapper = {
+ val data = dataJRDD.rdd.cache()
--- End diff --
cache() is not necessary
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