CODEWITHSUNDEEP
javajava-8comparatorconcurrentskiplistmap
Gianx
Gianx

Reputation: 61

ConcurrentSkipListMap add Comparator defined in generic class

I have this class:

public abstract class Orderable<ID, T extends Comparable, V extends Orderable> implements Comparator<V>{
public abstract ID getId();
public abstract T getOrderParam();

public int compare(V o1, V o2) {
    int compared = o1.getRankParam().compareTo(o2.getRankParam());
    if (compared == 0) return o2.getId().toString().compareTo(o1.getId().toString());
    return compared;
}

Now I'd like to create a ConcurrentSkipListMap passing as Comparator what I defined in Orderable Class. The goal is to keep ConcurrentSkipListMap ordered with comparator of V, where V is a generic class that extend Orderable.

    private volatile ConcurrentSkipListMap<ID, V> concurrentSkipListMap;
private volatile AtomicInteger size;

public LeaderBoardImpl() {
    concurrentSkipListMap = new ConcurrentSkipListMap<ID, V>(**** HERE I NEED TO PASS COMPARATOR****);
    size = new AtomicInteger(0);
}

I'm not sure how to pass a Comparator of a generic Class. Thanks Albert

Upvotes: 0

Views: 87

Answers (0)

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