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javareactivex

Conditional filter in RxJava2

I have a method with a signature 

void supplyData(String query, Integer skip, Integer count)

Typically I would model the method body like this:

MyProvider.observable(query)
 .skip(skip)
  .take(count)
  .subscribe();

Now the two Integers could be null, so I don’t need to skip and take all. How can I make these two steps optional?

Solution

  • null check should work here,

    MyProvider.observable(query)
 .skip(skip == null? 0: skip)
 .take(count == null? Integer.MAX_VALUE: count)
 .subscribe();