/**
* Creates a pair of {@code Object}s optimizing the storage type.
*
* @param <A> the first element type
* @param <B> the second element type
* @param first the first element, may be null
* @param second the second element, may be null
* @return a pair formed from the two parameters, not null
*/
@SuppressWarnings("unchecked")
public static <A, B> Pair<A, B> ofOptimized(A first, B second) {
if (second instanceof Double) {
if (first instanceof Double) {
return (Pair<A, B>)
DoublesPair.of(((Double) first).doubleValue(), ((Double) second).doubleValue());
} else if (first instanceof Integer) {
return (Pair<A, B>)
IntDoublePair.of(((Integer) first).intValue(), ((Double) second).doubleValue());
} else if (first instanceof Long) {
return (Pair<A, B>)
LongDoublePair.of(((Long) first).longValue(), ((Double) second).doubleValue());
}
} else if (first instanceof Integer) {
return (Pair<A, B>) IntObjectPair.<B>of(((Integer) first).intValue(), second);
} else if (first instanceof Long) {
return (Pair<A, B>) LongObjectPair.<B>of(((Long) first).longValue(), second);
}
return ObjectsPair.of(first, second);
}
/**
* Creates a pair of {@code Integer} to {@code Object}.
*
* @param <B> the second element type
* @param first the first element, may be null
* @param second the second element, may be null
* @return a pair formed from the two parameters, not null
*/
public static <B> Pair<Integer, B> of(int first, B second) {
return IntObjectPair.of(first, second);
}
/**
* Creates a pair of {@code Integer} to {@code Object}.
*
* @param <B> the second element type
* @param first the first element, may be null
* @param second the second element, may be null
* @return a pair formed from the two parameters, not null
*/
public static <B> Pair<Integer, B> of(Integer first, B second) {
if (first != null) {
return IntObjectPair.of(first.intValue(), second);
}
return ObjectsPair.of(first, second);
}
