```public interface ResourceManager<R extends N...
# announcementsj
jojo.lichtenberger
02/19/2020, 2:58 PM Copy code
public interface ResourceManager<R extends NodeReadOnlyTrx & NodeCursor, W extends NodeTrx & NodeCursor>d
diesieben07
02/19/2020, 2:59 PMMultiple generic bounds are expressed through `where`:
https://kotlinlang.org/docs/reference/generics.html#upper-bounds
j
jojo.lichtenberger
02/19/2020, 3:02 PM Copy code
fun <R, W> getRevisionNumber(rev: String?, revTimestamp: String?, manager: ResourceManager<R, W>): Array<Int>
where R : NodeReadOnlyTrx,
R : NodeCursor,
W : NodeTrx,
W : NodeCursor {jojo.lichtenberger
02/19/2020, 3:03 PMworks, thanks 🙂
jojo.lichtenberger
02/19/2020, 3:05 PMBTW: If I have a bunch of methods with ResourceManager<R,W> as a parameter, can I make this more clean (less repetitive)? I guess that's the best way, though
t
tseisel
02/19/2020, 4:14 PMYou could write interfaces that extends from both types, so that you can use a shorter syntax :
Copy code
interface NodeReadOnlyTrxCursor : NodeReadOnlyTrx, NodeCursor
interface NodeTrxCursor : NodeTrx, NodeCursor
fun <R : NodeReadOnlyTrxCursor, W : NodeTrxCursor> getRevisionNumber(rev: String? revTimestamp: String?, manager: ResourceManager<R, W>): Array<Int> { ... }