Highchair is a set of modules for developing Google App Engine services and applications in scala.
Please use the discussion group for questions, suggestions, and requests.
A module providing an idiomatic API for persiting objects to the Google Datastore, and for executing type-safe queries:
Person where (_.name is "Chris")
and (_.middleName is Some("Aaron")) fetch (limit = 100)
Remote wraps the Remote API, which allows any java application to transparently access the App Engine services of a given application:
remote {
Person.put(Person(None, "Chris", "Aaron", "Lewis", 30))
}
Util allows you to programatically launch and shutdown a local GAE application:
val server = DevServer()
server.start(guestbookApp)
// ... integration tests ...
server.stop()
Highchair requires at least Scala 2.8 and is cross-built for versions 2.8.0 - 2.9.0-1. Highchair artifacts are published using the excellent sbt.
val h_datastore = "net.thegodcode" %% "highchair-datastore" % "0.0.4"
Because sbt uses the maven module format, artifacts published via sbt are usable by maven and ivy. If you are unfamiliar with sbt, note the following:
- You must be explicit about the artifact versions. Because Highchair is cross-built its artifacts are suffixed
with _scala_version, where scala_version is the version of scala against which the artifact was compiled.
Therefore, in tools such as maven and ivy, the artifact id would be
highchair-datastore_2.8.0. - You must add
http://scala-tools.org/repo-releasesas a repository.