Scala & Vaadin 7 & Gradle src/main/scala/com/foo/UI.scala src/main/webapp/WEB-INF/web.xml build.gradle lib/scaladin_2.10-3.0-SNAPSHOT.jar gradle build gradle jettyRun

.gitignore

/.gradle
/.settings
/bin
/build
/.classpath
/.project

build.gradle

apply plugin: 'scala'
apply plugin: 'war'
apply plugin: 'jetty'
apply plugin: 'eclipse'
apply plugin: 'eclipse-wtp'

version = '0.1-SNAPSHOT'

repositories {
  mavenCentral()
  mavenRepo(url: 'http://maven.vaadin.com/vaadin-addons')
}

dependencies {
  // scala
  compile 'org.scala-lang:scala-library:2.10.2'

  // Vaadin libraries
  compile 'com.vaadin:vaadin-server:7.1.0'
  compile 'com.vaadin:vaadin-themes:7.1.0'
  compile 'com.vaadin:vaadin-client-compiled:7.1.0'

  // scaladin3 not yet published, only 2.x is
  // either build https://github.com/henrikerola/scaladin
  // your self, or download  the jar from
  // http://oss.arcusys.com/mvn/content/groups/public/vaadin/scala/scaladin_2.10/3.0.0-SNAPSHOT/
  // and put it in lib/
  //
  //compile 'org.vaadin.addons:scaladin:3.0'
  compile files('lib/scaladin_2.10-3.0-SNAPSHOT.jar')

  // because of https://issues.scala-lang.org/browse/SI-7439
  compile 'javax.servlet:javax.servlet-api:3.1.0'
}

UI.scala

package com.foo

import com.vaadin.server.VaadinRequest
import com.vaadin.ui._

class UI extends com.vaadin.ui.UI {

  override def init(request: VaadinRequest) {
    val view = new VerticalLayout()
    view.addComponent(new Label("Hello Vaadin!"))
    setContent(view)
  }
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>Demo App</display-name>
  <context-param>
    <description>Vaadin production mode</description>
    <param-name>productionMode</param-name>
    <param-value>false</param-value>
  </context-param>
  <servlet>
    <servlet-name>Application</servlet-name>
    <servlet-class>com.vaadin.server.VaadinServlet</servlet-class>

    <init-param>
      <param-name>UI</param-name>
      <param-value>com.foo.UI</param-value>
    </init-param>

  </servlet>
  <servlet-mapping>
    <servlet-name>Application</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>
</web-app>