CODEWITHSUNDEEP
scalacollectionsthread-safety
yAsH
yAsH

Reputation: 3405

Thread safe map which preserves the insertion order

In my Scala application I need to use several Maps and Lists which gets updated very often. Are there any thread safe collections in Scala which maintain the insertion order?

Upvotes: 4

Views: 9779

Answers (1)

4lex1v
4lex1v

Reputation: 21547

Yes, there is a trait in the scala.collection.concurrent package: concurrent.Map it's just a trait, so just mixin this trait into your Map and it would become thread-safe.

If you need a good concurrent map, try google's ConcurrentLinkedHashMap (last release 2015) and convert it to Scala Map using Scala/Java converter, that will give more performance that mixin SynchronizedMap. For example my favourite Spray toolkit, use it as a core structure for implmenting it's caching module. As you can see, spray is the fastest Scala web toolkit

Upvotes: 5

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