Skip to Content

Wiki source code of WebObjects with Scala

Version 272.1 by Ravi Mendis on 2009/09/15 20:03
Show last authors
1 === What is Scala? ===
2
3 Scala is a modern language not unlike Groovy.
4 It is said to be more powerful (and faster) than Groovy or Rails which has been the reason for its adoption at sites like Twitter.
5
6 === Why Use Scala? ===
7
8 In a Web 2.0, building concurrent WebObjects applications is a must.
9 Developing and maintaining a concurrent or multi-threaded WebObjects application can be challenging.
10
11 Scala offers concurrency built into the language.
12 So it may offer new solutions to WO developers...
13
14 === Can WebObjects be Programmed With Scala? ===
15
16 Yes. It is very simple.
17 Scala compiles to java bytecode. Hence using it with WebObjects is fairly straightforward.
18
19 == How to Develop WebObjects With Scala ==
20
21 1. [[Install the Scala eclipse IDE>>http://www.scala-lang.org/node/94]]
22 1. Add Scala support to your project
23 11. Right-click your project in the WO Explorer
24 11. In the context menu select Scala -> Add Scala Nature
25 1. Convert or use ##.scala## instead of ##.java## source
26
27 {{note title="Note"}}
28
29 This is for Eclipse/WOLips developers
30
31 {{/note}}
32
33 == WO Scala Example ==
34
35 The following is a mixed Java/Scala version of the WO Movies D2W app.
36 All the EO logic and WO components are in Scala.
37 Only the Application class is Java.
38
39 {{attachments patterns=".*zip"}}{{/attachments}}
40
41 === Setup ===
42
43 1. Install and run the OpenBase OBMovies database.
44 1. Right-click on Application.java and run as a WOApplication (as usual).
45
46 ==== EO Templates ====
47
48 See: [[Scala templates>>http://wiki.objectstyle.org/confluence/display/WOL/EOGenerator+Templates+and+Additions]]