I am trying out on some application with Scala. I have been troubled a lot by its Swing support. Having to write the code seems to be painful. I love Netbeans Matisse function in this case.
Is there any Scala RAD tools available?
Is there any Scala RAD tools available?
No (as far as I know).
Having to write the code seems to be painful.
It really shouldn't be, with something like XScalaWT. Unfortunately, I don't know if there is a Swing equivalent.
I love Netbeans Matisse function in this case.
You can generate Java classes using Matisse and extend them in Scala.
Related
Have anyone tried to write a Netbeans RCP application in scala (Instead of Java). The reason for my question there is an API in Scala which wraps JavaFX. Likewise is there any API to make to develop Netbeans RCP based apps written in scala.
For wrapping JavaFX there is ScalaFX. Netbeans Rich Client Platform is not small, and a Scala wrapper seems impractical to me (I am not aware of any); just call the Java code from Scala. Java/Scala interoperability is generally decent, so while you might occasionally have to write a little bit of Java as an interface, you can pretty much just use Scala for any Java project.
(Getting the build process to work might be a little tricky, though; expect to invest a little time there.)
I personally dont see any useful use case to use JVM language to develop NB RCP/Plugin. NB It self provides a IDE where you can use the drag-drop feature, codegen, annotation based IDE to created it. If you want to have a syntax sugar in writing NB RCP then i feel its waste of time where we already have a good IDE. JVM is not going to do any much difference that the existing environment.
If you see that you need a NB like modular, GUI based framework in Scala ecosystem that, I personally feel writing binding wont solve that problem. Scala need some framework like Griffon.
As an exercise my team is looking at learning functional programming. One of the factors to choose a language is its support in Eclipse. Any language with Eclipse plug-in is fine but what language offers the best free plug-in?
Bonus question: the best online/book tutorial for this language.
I don't know if it is the best, but it is evolving and improving fast:
Scala IDE (up to Scala2.8.1RC1 right now)
As for the best online Scala book:
Programming Scala (Creative Commons Attribution-Noncommercial)
But you will find other online sources in the SO question "List of freely available programming books".
Clojure is pretty well supported with the Counterclockwise plugin in Eclipse. Key features:
A nice syntax aware editor including rainbow braces
An integrated REPL
Dependency management orks reasonably nicely with Maven, other Eclipse plugins etc.
Debug mode works fairly well
I would go for Javascript, with Eclipse + Aptana plug-in and Secrets of the Javascript Ninja for a book with some nice advanced material.
Since nobody gave this answer I have to add it.
Groovy offers Java integration, Eclipse plugin and integration, and functional features. Many would argue that it's a scripting language but it's a complete language nonetheless. And it's obvious choice for Java junkies...
Python with PyDev plugin is another great option.
Erlide plugin for Erlang development on Eclipse.
I've been reading up on Scala a lot recently and I really want to get into it. I do my Java web development from within Eclipse with Tomcat as my preferred server and I'd like to keep it that way. I've tried the Scala Eclipse plugin but it's safe to say, it isn't there yet. I had to uninstall it because it simply ins't working. On top of that, it doesn't seem to provide anything for doing web projects (I could be wrong there).
Since Scala is a compiled language just like Java is, I was wondering if it's possible to simply swap out Java with Scala, as in, where I'd normally would create Java classes I would now be able to create Scala classes instead? Maybe even mix Java and Scala?
Is there anyone out there who's been able to set up a decent Scala workflow in Eclipse for web development without the dreaded "official" Scala Eclipse Plugin?
PS: I've tried the Play framework (I think it recently added Scala support) but it simply isn't for me. I like my classes compiled and to use JSP's for my views.
You don't say anything about what version of the Scala IDE for Eclipse you were using, or what you tried to do to resolve your issues. I suggest that before changing your workflow you head over to http://groups.google.com/group/scala-ide-user and see if we can help you out.
Since Scala is a compiled language
just like Java is, I was wondering if
it's possible to simply swap out Java
with Scala, as in, where I'd normally
would create Java classes I would now
be able to create Scala classes
instead?
Yes, absolutely. That's one of Scala's big advantages over some other JVM languages.
Maybe even mix Java and Scala?
Yes, absolutely. That's one of Scala's big advantages over some other JVM languages.
Make sure you have familiarity with the Java and Scala collections libraries (and that you keep them straight -- if you're planning using advanced Scala features on Java collections, definitely use a Scala 2.8 release candidate). Also make sure you're faimilar with the #BeanProperty annotation -- it can simplify your Scala coding somewhat.
As Miles said, you should give us the version of Eclipse you are working with.
I'm also new to Scala and found difficult to work through Eclipse. I was using Eclipse Galileo 3.5.2 and found specially long to compile all the scala libraries. I switched to IntelliJ (IDEA 9.0.2) and I'm much more confortable now. I recomend trying it although it's more a personal matter.
Even so, I agree, the plugins are not there yet specially for web development. The great news is that you can use everything you have in Java and mix it with Scala. Since Scala is compiled to Java BitCode, they are totally compatible. See Combining Scala and Java.
When writing in Scala you always have (almost) all the Java libraries at your service plus anything you have created before. You will have to be carefull with the types (i.e. primitive types) but it normally works out very well.
I have been reading about Scala for a while and even wrote some small programs to better understand some of the more exoteric features.
Today I decided to do my first "real project", translating some 60 lines of ugly Java code to Scala to rewrite it using the better pattern-matching features (why? because the Java version was becoming hard to maintain due to excessive combination of regex and conditionals).
About halfway through the editing process, Eclipse thew up this error:
alt text http://img269.imageshack.us/img269/1243/errorms.jpg
I get the general impression that the Scala IDE in Eclipse is a lot buggier and less complete than its Java equivalent. Is this correct or do I just have a bad installation? Is there a better IDE for Scala?
I really like IntelliJ Idea Community Edition's Scala support. I've been using it from it's early days. I've also tested Netbeans and Eclipse plugins but I really don't like them that much. Especially all Eclipse Scala plugins are crap. I also tested Textmate Scala bundle, which is very nice but doesn't offer auto completion.
Here is my Scala Ide top list:
IntelliJ Idea Community Edition
Netbeans
Textmate (This is here, since I really like Textmate for writing Rails applications)
Eclipse
When you learn IntelliJ Idea keyboard shortcuts and add some live templates you can be very productive programmer. Furthermore, if you buy the Intellij Idea Ultimate Edition you can even share the settings with multiple computers or with your team.
What I suggest:
Download IntelliJ Idea Community Edition
Install the Scala plugin
Learn the keyboard shortcuts: Windows and Linux, Mac
Configure Live Templates when you get more familiar with the ide
The Eclipse IDE Scala support has not been great for some time, but is now receiving additional development effort alongside the introduction of Scala 2.8, and appears to be improving. For Scala 2.7 I have found the Intellij plugin to be in a better state.
One problem that both of these plugins have is that Scala itself is a moving target - Scala 2.8 has introduced additional syntax and structures to Scala 2.7.
From my own experience with Eclipse, using it for languages other than Java is never quite as good.
You might find this post of interest.
I get the general impression an IDE for a new, young, niche language is a lot buggier and less complete than a widespread, supported, mature language
Try Netbeans. Its plugins are generally of a simpler construction anyway, so should have less 'gotchas'
One point to make is that it is possible that people are still put off IntelliJ because they assume that the licence is expensive, especially if they are happy with Eclipse and are unaware of the Community Edition which is free and open source.
I cannot give any comparison with the other IDEs as I have always used IntelliJ, however the Scala support is certainly good, all things considered, and getting better.
We are using Eclipse Scala plugin at work and working with it is quite terrible. One cannot really trust reported errors inside IDE, runtime exceptions are the order of the day. Our best experience is with build from 25-11-2009.
At home I play with IntelliJ 9 and its Scala plugin and I find it much much better. I am newbie to IntelliJ but I am very impressed with all those little details which (once you get used to them) increase your productivity... a lot.
The drawback is in IntelliJ there is no compile-error reporting on the fly (at the time you're writing code) yet implemented and only Scala up to 2.7 is supported (2.8 by nightly builds only), but there are NO runtime exceptions while working with the IDE. I would recommend you to try IntelliJ, community edition at least.
I never really get on with IDEs at the best of times because they are usually pretty awful at actual text editing, but Eclipse's Scala plugin is particularly brittle to the point that projects "forget" that they are Scala after a while. Battling Eclipse seems to consume more effort than it saves. I just went back to my Emacs and sbt REPL in a terminal.
A light play with IntelliJ confirmed that it does at least do the job as a Scala IDE, but again I didn't care for its editor. It's also commercial software. However, if you are seeking a robust Scala IDE, this is perhaps where you should be looking.
What I have since settled on is perhaps perverse and not for the newcomer, but suits somebody who has definite opinions about their text editor. ENSIME is an editor plugin and server component that adds what you need from a Scala IDE to Emacs. It also claims support for vim, Atom, and Sublime, but I've not tested these. Occasionally it also has a bad day—obscure kinds of macros particularly confuddle it—but it generally does the job.
I came to know that eclipse can be used for other languages as well. But will it give the same comfort level as using java? Is there anybody who has used eclipse for other languages?
I've used Eclipse for both C/C++, Ruby, Erlang, and a few others. None of these are as tightly integrated with Eclipse as Java is, but CDT (C/C++) gives Visual Studio a good run for its money. I usually use Emacs for the other ones.
Yes, you can use Eclipse for many languages other than Java. I personally use Eclipse to code in C++, Perl, PHP, and do JavaScript as well inside of it. While it also supports plugins for connecting and executing queries against databases, I tend to prefer other options there such as Toad or Oracle SQL Developer. There are numerous other plugins to support many other languages that you can find either through the Update Manager or a simple Google search, many of which are excellent.
As a side note, if you're not using Mylyn, you're missing out.
Eclipse is used as a base for other language and tool:
for example As3 with FlashBuilder; PHP, Javascript with Aptana studio, C,Python,... with other plugins, etc...
You can found here for example some plugins for other languages.
I've used it for Javascript (jQuery): compile-time checks are a godsend to the barren lands of javascript.
For Java developement I feel most comfortable using Eclipse.
I tried using Eclipse for coding with Python. There is PyDev, an Eclipse plugin that can be used to work with the Python code in Eclipse. Though PyDev provides features like Code Completion, Syntax highlighting etc, I felt comfortable to use editors like gvim or emacs rather than Eclipse
for working with Python code. YMMV
Yes, Eclipse supports many other languages.
But you knew that already when you saw http://www.eclipse.org/downloads/
So, I guess that you are asking how well it supports them...
It is possible to have Eclipse without Java. Imagine taking that and then adding Java support. Compare that with CDT for C++ and - in my experience - they are pretty much the same.
Yes, Eclipse is slanted at Java, and I doubt that anyone will deny that, but at the same time it tries to be fair and generic and pretty much achieves it. Any few % less other language support doesn't matter when you realize that no other IDE compares.
Bottom line, whatever your language, you will be hard pushed to beat Eclipse.
And that's before I get started on the myriad plugins ...
Not only programming, debugging with Eclipse is sweet. Beside Java, the other languages I mostly work on Eclipse are PHP and Python.
While I was working on the Eclipse Web Tools Platform (WTP) project we often said that the Java Development Tools (JDT) were the model that we referenced for features for Web related languages. I think JDT has set the bar and many other projects that implement language specific tooling try to reach the JDT bar. I don't know that any have or that copying everything about JDT is the point but I do think the Java tools are exemplary development tools.