=clu replace Set -- with diff and ++ with union

* better performance according to https://docs.google.com/presentation/d/1Qjryxoe-fYEM8ZPhM-98LKfbhnRcn5eAEMNlVVnixsA/pub
2015-10-30 14:59:36 +01:00 · 2015-10-30 14:59:36 +01:00 · c7c187f6b7
commit c7c187f6b7
parent 9380983d3c
24 changed files with 46 additions and 46 deletions
--- a/akka-persistence/src/main/scala/akka/persistence/journal/leveldb/LeveldbStore.scala
+++ b/akka-persistence/src/main/scala/akka/persistence/journal/leveldb/LeveldbStore.scala
@ -63,7 +63,7 @@ private[persistence] trait LeveldbStore extends Actor with WriteJournalBase with
              case _ ⇒ (p, Set.empty[String])
            }
            if (tags.nonEmpty && hasTagSubscribers)
-              allTags ++= tags
+              allTags = allTags union tags

            require(!p2.persistenceId.startsWith(tagPersistenceIdPrefix),
              s"persistenceId [${p.persistenceId}] must not start with $tagPersistenceIdPrefix")