lang-scala

Vert.x module that provides Scala support

License	Apache License, Version 2.0
Categories	Scala Languages
GroupId	io.vertx
ArtifactId	lang-scala_2.10
Last Version	1.1.0-M1
Release Date	Sep 18, 2014
Type	jar
Description	lang-scala Vert.x module that provides Scala support
Project URL	http://vertx.io
Project Organization	io.vertx
Source Code Management	http://github.com/vert-x/mod-lang-scala

Download lang-scala_2.10

Filename	Size
lang-scala_2.10-1.1.0-M1.pom
lang-scala_2.10-1.1.0-M1.zip	21 MB
lang-scala_2.10-1.1.0-M1-sources.jar	105 KB
lang-scala_2.10-1.1.0-M1-javadoc.jar	1 MB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/io.vertx/lang-scala_2.10/ -->
<dependency>
    <groupId>io.vertx</groupId>
    <artifactId>lang-scala_2.10</artifactId>
    <version>1.1.0-M1</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/io.vertx/lang-scala_2.10/
implementation 'io.vertx:lang-scala_2.10:1.1.0-M1'

Gradle Kotlin

// https://jarcasting.com/artifacts/io.vertx/lang-scala_2.10/
implementation ("io.vertx:lang-scala_2.10:1.1.0-M1")

Apache Buildr

'io.vertx:lang-scala_2.10:jar:1.1.0-M1'

Apache Ivy

<dependency org="io.vertx" name="lang-scala_2.10" rev="1.1.0-M1">
  <artifact name="lang-scala_2.10" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='io.vertx', module='lang-scala_2.10', version='1.1.0-M1')
)

Scala SBT

libraryDependencies += "io.vertx" % "lang-scala_2.10" % "1.1.0-M1"

Leiningen

[io.vertx/lang-scala_2.10 "1.1.0-M1"]

Dependencies

compile (2)

Group / Artifact	Type	Version
org.scala-lang : scala-compiler	jar	2.10.4
org.scala-lang : scala-library	jar	2.10.4

provided (3)

Group / Artifact	Type	Version
io.vertx : vertx-core	jar	2.1.2
io.vertx : vertx-platform	jar	2.1.2
io.vertx : testtools	jar	2.0.3-final

test (2)

Group / Artifact	Type	Version
org.hamcrest : hamcrest-library	jar	1.3
com.novocode : junit-interface	jar	0.10

Project Modules

There are no modules declared in this project.

Vert.x 2.x is deprecated - use instead https://github.com/vert-x3/vertx-lang-scala

Scala Module for Vert.x

Scala language implementation for Vert.x.

Versions

Vert.x Scala 1.0.x is designed for Vert.x 2.1 and works with Scala 2.10

Quickstart

To use it, we’ve added a first "Hello World"-like example to the Vert.x Examples repository which can be run like this:

1. Clone or download the Vert.x Examples Git repository

2. Change directory to src/raw/scala and type:

   [VERTX_HOME]/bin/vertx run http/Server.scala

3. Go to http://localhost:8080/ and you should see the message: ""This is a Verticle script!"

Using the Vert.x Scala API

The best places to look for examples on how to use the Vert.x Scala API are the Vert.x Examples repository and the Vert.x Scala testsuite. Please inspect those if you have any doubts. The following sub sections explain some of the items to bear in mind when using this API.

Type annotations for handlers in for overloaded methods

In some cases, the Scala compiler can fail to detect the type of a particular handler, for example:

+

val datagramSocket = vertx.createDatagramSocket()
datagramSocket.send("hello", "127.0.0.1", 1234, { h: AsyncResult[DatagramSocket] =>
   ...
}

+

In this example, send method call explicitly needs to define the type annotation for the async result handler. This is because there’s an overloaded method that sends a org.vertx.scala.core.buffer.Buffer instead of a String.

A possible workaround would have been to use function currying, but doing so would limit the API capability to add scala.concurrent.Future based methods, which are better suited for implementing handlers.

Plugging Vert.x Scala language extension

Vert.x 2.1 comes with Vert.x Scala language support embedded within it, but if you want to test a different version of the Vert.x Scala language implementation, follow these instructions:

1. Download a Vert.x distribution.

2. Open [VERTX_HOME]/conf/langs.properties file and modify this line to match the Vert.x Scala version to test:

   scala=io.vertx~lang-scala~X.Y.Z:org.vertx.scala.platform.impl.ScalaVerticleFactory

   Optionally, if you’re testing a locally built Vert.x Scala extension, you’ll need to do the following steps additionally:

3. Download latest SBT release

4. Put [SBT_HOME]/bin/sbt or [SBT_HOME]/bin/sbt.bar into your path

5. Clone the Vert.x Scala source repository 4a. If you want build plugin with the base Scala version used (e.g. 2.10), execute:

   $ sbt clean publishM2
   $ [VERTX_HOME]/bin/vertx install io.vertx~lang-scala_2.10~X.Y.Z

   4b. On the other hand, if you want build plugin with a cross compiled Scala version (e.g. 2.11), execute:

   $ sbt clean +publishM2
   $ [VERTX_HOME]/bin/vertx install io.vertx~lang-scala_2.11~X.Y.Z

   For more information on building Vert.x Scala, check the contributing guide.

vert.x

Legacy Vert.x 2.x - use instead Vert.x 3 instead https://github.com/eclipse/vert.x

Versions

Version
1.1.0-M1 Sep 18, 2014
1.0.1-RC3 Aug 21, 2014
1.0.1-RC2 Aug 19, 2014
1.0.1-RC1 Aug 15, 2014