j5ik2o

import collection.mutable.ListBuffer

// 命令型で書いた場合
val filtered = new ListBuffer[Int]
val numbers = List(1,2,3,4,5)
for(n <- numbers){
  if (n % 2 == 0){
    filtered += n
  }
}

j5ik2o

  case class Car(name: String, color: String)

  def find(name: String, cars: List[Car]): Option[Car] = {
    for (car <- cars) {
      if (car.name == name) {
        return Some(car)
      }
    }
    None
  }

j5ik2o

命令型で記述。

for (n <- 1 to 100) {
  if (n % 15 == 0) {
    println("FizzBuzz")
  } else if (n % 3 == 0) {
    println("Fizz")
  } else if (n % 5 == 0) {
    println("Buzz")
  } else {

j5ik2o

// 1. $PROJECT_ROOT/project/build/MyProject.scalaを作る。IdeaProjectをミックスインする。
import sbt._

class MyProject(info: ProjectInfo) extends DefaultProject(info) with IdeaProject{

}

// 2. $PROJECT_ROOT/project/plugins/Plugins.scalaを以下のように作る。
import sbt._

j5ik2o

pom.xmlの中身
<?xml version='1.0' encoding='UTF-8'?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0</modelVersion>
    <groupId>jp.tricreo.scala</groupId>
    <artifactId>scala-ddd-base_2.8.1</artifactId>
    <packaging>jar</packaging>
    <version>0.0.1-SNAPSHOT</version>
...

j5ik2o

import sbt._

class MyProject(info: ProjectInfo) extends DefaultProject(info) {

  override def managedStyle = ManagedStyle.Maven

  // publishing
  lazy val publishTo = if (version.toString.endsWith("-SNAPSHOT")){
    println("Selected Snapshot")
    Resolver.sftp("Tricreo Repo", "maven.tricreo.jp", "/var/www/maven.tricreo.jp/snapshot")

j5ik2o

package util;

import java.io.Serializable;
import java.util.Iterator;

public class Range implements Iterable<Integer>, Serializable, Cloneable {
	
	private static class RangeIterator implements Iterator<Integer> {
		
		final int start;

j5ik2o

import collection.mutable.ListBuffer

/**列挙型定数を表すトレイト。
 *
 * @author j5ik2o
 */
trait EnumEntry extends Serializable with Ordered[EnumEntry] {

  /**列挙定数の序数 (列挙宣言での位置)。 */
  private[util] var ordinalNo: Int = _

j5ik2o

require 'formula'

class Maven3 < Formula
  url 'http://www.apache.org/dist/maven/binaries/apache-maven-3.0.3-bin.tar.gz'
  homepage 'http://maven.apache.org/'
  md5 '507828d328eb3735103c0492443ef0f0'

  def install
    # Remove windows files
    rm_f Dir["bin/*.bat"]

j5ik2o

require 'formula'

class Maven2 < Formula
  url 'http://www.apache.org/dist/maven/binaries/apache-maven-2.2.1-bin.tar.gz'
  homepage 'http://maven.apache.org/'
  md5 '3f829ed854cbacdaca8f809e4954c916'

  def install
    rm_f Dir["bin/*.bat"]