Execute multiple queries in parallel via Streams

Question

I am having the following method:

public String getResult() {

        List serversList = getServerListFromDB();

        List ap         


        

Answer 1

Not quite clear what do you mean, but if you just want to run some process on these lists on parallel you can do something like this:

    List list1 = Arrays.asList("1", "234", "33");

    List list2 = Arrays.asList("a", "b", "cffffd");

    List list3 = Arrays.asList("1331", "22", "33");

    List> listOfList = Arrays.asList(list1, list2, list3);

    listOfList.parallelStream().forEach(list -> System.out.println(list.stream().max((o1, o2) -> Integer.compare(o1.length(), o2.length()))));

(it will print most lengthy elements from each list).