how to declare graphX variable as global in scala

Question

I am new in scala and spark-graphX.

How can I declare spark-graphx variable as global variable in scala.

I have a method to create graph with spark-graphX and it is successful. Now , I want to retrieve graph details from another method. For that, I need to declare graph variable as global. Please suggest how can I do that

You might get a better response if you post the code you have tried so far. — J Maurer, Oct 05 '16 at 01:28

score 0 · Answer 1 · answered Nov 02 '16 at 20:43

You can do it like any other data structure in scala just declare it outside the method in the main body of the class or object you have created. Make sure you give the same signature and initialize it to null. Like this

var graph: Graph[vertexType, edgeType] = null, for example 
var graph: Graph[Long, Long] = null

how to declare graphX variable as global in scala

1 Answers1