Hi,
I have a map collection .
I am trying to build when condition based on the key values .
Like df.withColumn("ID", when( condition with map keys ,values of map )
How can I do that dynamically.
Currently I am iterating over keysIterator and get the values
Kal keys = myMap.keysIterator.toArray
Like below
df.withColumn("ID",when(condition on keys(0),lit(myMap get
keys(0)).when(condition on keys(1),lit(myMap get keys(1)).
when(condition on keys(2),lit(myMap get keys(3)).otherwise("value not
found"))
How can I build the above expression dynamically
Like for (key <-keys){
when(condition on key ,lit(myMap get key)
}
Would really appreciate the help.
Thanks,
Divya
