memcached4s

memcached4s is memcache wrapper over spymemcache. It's foundations are based on the excellent code from @mumoshu and its play2-memcached module.

I wanted a simple scala memcached client for the services layer on an application I was working on, I tried a few options in the scala ecosystem but did not find something that worked simply like @mumoshu solution did.

1. SBT
2. Usage

Quick start

SBT

In plugins.sbt, add the following bintray resolver

Resolver.bintrayIvyRepo("typedlabs", "releases")

In build.sbt, set the memcached4s version in a variable (for the latest version, set val memcached4sVersion = the version you see in the bintray badge above).

libraryDependencies ++= Seq(
    "com.typedlabs" %% "memcached4s" % memcached4sVersion
)

Usage

memcached4s leverages Scala Promise to interface with spymemcache asynchronous api via a single case class com.typedlabs.memcached4s.MemcacheApi. It also has com.typedlabs.memcached4s.Done to more clearly signal completion intent rather than Unit.

It needs an implicit scala.concurrent.ExecutionContext.

  import com.typedlabs.memcached4s.{MemcacheApi,  Done}
  import net.spy.memcached.{ MemcachedClient }  
  import java.net.InetSocketAddress
  import scala.concurrent.Future
  import scala.concurrent.duration._
  import scala.concurrent.ExecutionContext.Implicits.global

  val address = new InetSocketAddress("localhost", 11211)
  
  val client: MemcachedClient = new MemcachedClient(address)

  val memcacheApi = new MemcacheApi(client, "test_namespace.")

  val savedData: Future[Done] = memcacheApi.set("some_key", "some_value", 5 minute)

  val retrievedData: Future[Option[String]] = memcacheApi.get("some_key")

  val getOrUpdateData: Future[Option[String]] = memcacheApi.getOrElseUpdate("some_key", 5 minutes)(Future("some_value"))  
  

TODO

Somethings I would like to add at some point.

• Custom Serialization