CODEWITHSUNDEEP
scalamonadsoption-type
Userrrrrrrr
Userrrrrrrr

Reputation: 399

Option fields in Scala

I have 2 RDD's that I joined them together using left join. As a result, the fields of the right RDD are now defined as Option as they might be None (null). when writing the result to a file it looks something like this: Some(value) for example: Some('value1'), Some('Value2'). How can I remove the 'Some' / remove the Option from the field definition?

Upvotes: 0

Views: 360

Answers (1)

muhuk
muhuk

Reputation: 16085

If you have an Option[String] and turn this into a String, you still need to handle the case where your value is None.

For example you can turn None's into empty strings:

val myInput: Option[String] = ...
val myOutput: String = myInput.getOrElse("")

Or into null's:

val myInput: Option[String] = ...
val myOutput: String = myInput.orNull

Or not write them at all:

val myInput: Option[String] = ...
// Does nothing if myInput is None
myInput.foreach(writeToFile)

Upvotes: 3

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