[jira] [Created] (SYSTEMML-884) Remove Script in() method Scala Map types

["Deron Eriksson (JIRA)" <ji...@apache.org>]

Deron Eriksson created SYSTEMML-884:
---------------------------------------

             Summary: Remove Script in() method Scala Map types
                 Key: SYSTEMML-884
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-884
             Project: SystemML
          Issue Type: Bug
          Components: APIs
            Reporter: Deron Eriksson
            Assignee: Deron Eriksson


The following MLContext code from Spark Shell:
{code}
val addScript = dml("print(a + b)")
addScript.in(Map("a"->1,"b"->2))
{code}
gives:
{code}
<console>:34: error: overloaded method value in with alternatives:
  (x$1: Seq[Object])org.apache.sysml.api.mlcontext.Script <and>
  (x$1: scala.collection.Map[String,Object])org.apache.sysml.api.mlcontext.Script <and>
  (x$1: java.util.Map[String,Object])org.apache.sysml.api.mlcontext.Script
 cannot be applied to (scala.collection.immutable.Map[String,Int])
              addScript.in(Map("a"->1,"b"->2))
{code}

An annoying fix from Scala would be:
{code}
addScript.in(Map("a"->1.asInstanceOf[AnyRef],"b"->2.asInstanceOf[AnyRef]))
{code}
This is not good from a usability standpoint.

An alternative that has good usability is to remove the <String, Object> types from the scala.collection.Map of the in()/input() methods.




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