Re: [Lift] Lift compiles on Scala 2.8 and runs the demo
Some people consider it slightly evil, but you can also just do "mvn ...
-Dtest=false". Less typing.
David Bernard wrote:
> To run maven without compiling+running test from commandline :
>
> mvn -Dmaven.test.skip=true
>
> To fully disable test without commenting them :
> edit pom.xml
>
> true
>
>
> (I prefer using the property instead of directly configure surfire
> because :
> * don't require to add a surfire section if it doesn't already exists
> * some profile (eg : integration test) are enabled only if
> maven.test.skip != true (include false, not-define,...)
> )
>
> On Fri, Nov 20, 2009 at 01:31, David Pollak
> mailto:feeder.of.the.be...@gmail.com>>
> wrote:
>
> Folks,
>
> The 280_port of Lift properly compiles and runs the Lift demo
> application against the Scala 2.8.0 nightly.
>
> I spent most of today tracking down a bug that I can't reproduce
> in isolation, but it seems that the ensureCapacity method in
> Scala's StringBuilder method has an infinite:
>
> def ensureCapacity(n: Int) {
> 117
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L117>
> if (n > array.length) {
> 118
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L118>
> var newsize = array.length * 2
> 119
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L119>
> while (n > newsize)
> 120
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L120>
> newsize = newsize * 2
> 121
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L121>
> val newar = new Array[Char](newsize)
> 122
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L122>
> arraycopy(array, 0, newar, 0, count)
> 123
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L123>
> array = newar
> 124
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L124>
> }
> 125
>
> <http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/collection/mutable/StringBuilder.scala?view=markup#L125>
> }
>
>
> I saw an infinite loop in lines 119/120 (it was line 115 in the
> version I was testing against). I replaced Scala's StringBuilder
> with the Java native code and all worked just fine. It might be
> worth a gander at the byte-code for StringBuilder to see how an
> infinite loop could happen.
>
> Anyway, I'm looking forward to the next drop of a stable 2.8.0 so
> I can compile against Specs and get a more complete (read: passes
> tests... right now the tests are commented out because I don't
> have the Specs/ScalaCheck/etc. chain in the 2.8.0 nightly).
>
> Thanks,
>
> David
>
> --
> Lift, the simply functional web framework http://liftweb.net
> Beginning Scala http://www.apress.com/book/view/1430219890
> Follow me: http://twitter.com/dpp
> Surf the harmonics
>
> --
>
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--
Eric Bowman
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Re: [Lift] Call it Lift 2.0
Sun doesn't bump the version unless they break backwards compatibility, which they have (mostly) never done since JVM 1.0. Those classfiles still run! Heiko Seeberger wrote: > Hi, > > There has been a large amount of new stuff and also some breaking > changes since Lift 1.0. As an OSGi guy I suggest we call the next > version Lift 2.0, because increasing the major version number will > show the world that there are breaking changes and/or cool new > features. At least, this is how versions are used in OSGi land. OK, I > know that Sun follows another version strategy (keeping the major > version fixed to 1 forever) and the Scala folks also seem to be stick > to 2.x (quite a lot people would like 2.8 to be 3.0), but IMHO this is > no reason for Lift to follow the same mislead strategy. So what do you > think? > > Heiko > > My job: weiglewilczek.com <http://weiglewilczek.com> > My blog: heikoseeberger.name <http://heikoseeberger.name> > Follow me: twitter.com/hseeberger <http://twitter.com/hseeberger> > OSGi on Scala: scalamodules.org <http://scalamodules.org> > Lift, the simply functional web framework: liftweb.net > <http://liftweb.net> > > --~--~-~--~~~---~--~~ > You received this message because you are subscribed to the Google > Groups "Lift" group. > To post to this group, send email to liftweb@googlegroups.com > To unsubscribe from this group, send email to > liftweb+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/liftweb?hl=en > -~--~~~~--~~--~--~--- > -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=.
[Lift] offtopic: smartfrog
Just curious since there are a lot of smart folks here: Anybody using smartfrog for production deployments? Conceptually, it seems great, but the documentation is quite limited. If you feel like bending my ear off-list with any opinions, much appreciated. Thanks, Eric -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: Becoming a Scala/Lift Guru
To this I would add: The way to learn to program, is to program. It takes a lot of time, and a lot of hard work. Reading books is good, and necessary, but it's not enough. Also, Lift really uses Scala to the max, so if you only have 30 days, I would plan to spend the first half just becoming good at Scala. Which will take longer than 15 days! Anyhow, being a "guru" is a life ambition. It takes time, time, time and more time. All your time. A history of "unfinished" is going to work against you -- this will take serious dedication and stick-to-it-ness. An insightful view from Google's Director of Research: http://norvig.com/21-days.html Naftoli Gugenhem wrote: > I would say that the main advantage knowledge of Java over a similar language > gives you is knowledge of the Java environment and system, but you can pick > that up via scala too. > As far as turning theory into actual programming, my personal advice is to > take one small sample, get it running, and then ask yourself questions like > "Why does it do this?" and "What if I change this." Once you have a thorough > understanding of how the sample accomplishes what it was supposed to > accomplish, and how all the parts contribute to that, repeat with another > one. Along the way ask yourself, "What if I want the computer to do xyz > (similar to sample x)?" Also, play around in the interpreter trying different > permutations. > Of course, it goes without saying to read the books and articles, not to > mention to ask all your questions on the scala-user list. > Enjoy! > > - > eric cs wrote: > > > Hi guys, > > I saw some posts on Scala website about helping newcomers and I was > wondering if some of you would be kind enough to help me out to start > with Scala/Lift. > My main problem is I am not a programmer yet but I really really want > to be, I've been studying Ruby/Rails, Php/Zend/Symfony,Mvc,Design > Patterns,Uml,Sql and some Java. I read some books but I don't get my > head to think like a programer. > I really like OO,Design Patterns, Uml but I don't know how to apply > that to a full application, how to link everything together, > classes,objects(books about that?Not about those items but how to put > everything together)...I know a lot of the theory and concepts but no > practice. > I have all july available to learn that 12 hours a day or more if > necessary I just need a push, someone to teach/help me out. > What's more, I saw a post saying that I could learn Scala from scratch > without learning Java, it's possible, not so much with Groovy. If it's > not what parts of Java do I need to know, in case some of you tell me > learn Java first(the easy answer).Do I need a lot of experience in > Java to jump in in Scala? I know it helps but I would like to finish > my first e-commerce in august, 100% opensource in Scala if possible. > > P.s:I did 2 years of Computer Science C++ and 2 years of Civil > Engineering over 12 years ago both unfinished. > > > > > > -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: preso on monadic design patterns for the web
Here? http://svn.biosimilarity.com/src/open/talks/MonadicDesignPatternsForTheWeb.pdf Timothy Perrett wrote: > +1 would love to read the slides properly. > > Cheers, Tim > > On Jun 29, 8:59 am, Jonas Bonér wrote: > >> Great talk. Thanks. >> Could you post the slides? It was a bit hard to see them. >> /Jonas >> >> 2009/6/29 Meredith Gregory : >> >> >> >> >> >> >>> All, >>> >>> The talk i recently gave on this topic is now available online. >>> >>> Best wishes, >>> >>> --greg >>> >>> -- >>> L.G. Meredith >>> Managing Partner >>> Biosimilarity LLC >>> 1219 NW 83rd St >>> Seattle, WA 98117 >>> >>> +1 206.650.3740 >>> >>> http://biosimilarity.blogspot.com >>> >> -- >> Jonas Bonér >> >> twitter: @jboner >> blog:http://jonasboner.com >> work: http://crisp.se >> work: http://scalablesolutions.se >> code: http://github.com/jboner >> > > > -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: JPA and auto generation of id
David Persons wrote:
> Hello guys,
>
> I get a org.hibernate.exception.SQLGrammarException: could not get or
> update next value error everytime I try to save the following Entity:
>
> @Entity
> class Scene {
> @Id
> @GeneratedValue(){val strategy = GenerationType.AUTO}
> var id : Long = _
>
> @Column{val unique = true, val nullable = false}
> var ordering : Int = _
>
> @Column{val unique = true, val nullable = false}
> var name : String = ""
>
> @ManyToOne{val optional = false}
> var storyBoard : StoryBoard = _
> }
>
>
You almost certainly need some scala.reflect.BeanProperty annotations on
your fields.
cheers,
Eric
--
Eric Bowman
Boboco Ltd
ebow...@boboco.ie
http://www.boboco.ie/ebowman/pubkey.pgp
+35318394189/+353872801532
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[Lift] Re: Downloading...
Joe Wass wrote: > I'm trying to compile my Lift application but it seems that every time > I do it tries to download something or other. Case in point, just now: > > Downloading: > http://scala-tools.org/repo-releases/org/igniterealtime/smack/smack/3.1.0/smack-3.1.0.pom > Downloading: > http://repo1.maven.org/maven2/org/igniterealtime/smack/smack/3.1.0/smack-3.1.0.pom > Downloading: > http://scala-tools.org/repo-releases/org/igniterealtime/smack/smackx/3.1.0/smackx-3.1.0.pom > Downloading: > http://repo1.maven.org/maven2/org/igniterealtime/smack/smackx/3.1.0/smackx-3.1.0.pom > > As it happens my net connection was down (faulty line, not out of > choice) and I couldn't compile things without a massive delay. Is this > a side-effect of the Git approach to source control (i.e. you get the > whole repository whether you like it or not) or is it something > entirely different? Sure enough I can use the -o flag to say I'm off- > line, but I suppose that will mean taking a hit next time I tell it > that I'm not offline? Is Lift suitable for development away from the > internet? > > No reason not to use mvn -o most of the time. You won't take a bit hit unless either a bunch of maven plugins have changed, or you make a change to your dependencies. I do alias m='mvn -o', makes life easier. cheers, Eric -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: is there a name for this pattern?
Eric Bowman wrote: > The basic trick where a superclass has its subclass as a type parameter, > e.g. > > class User extends MegaProtoUser[User] > > I've run into this before, I remember struggling to "get it", then > getting it, but I can't recall the epiphany. But obviously this is a > relatively common technique, so something to google is much appreciated. > Thanks all for the great replies! cheers, Eric -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] is there a name for this pattern?
The basic trick where a superclass has its subclass as a type parameter, e.g. class User extends MegaProtoUser[User] I've run into this before, I remember struggling to "get it", then getting it, but I can't recall the epiphany. But obviously this is a relatively common technique, so something to google is much appreciated. Thanks, Eric -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: what does 'S' stand for?
David Pollak wrote: > It stands for State. > > When I first started coding Lift, I was using emacs and wanted to have > short names for everything... especially the commonly used stuff. > > I wanted to isolate state into a single place so every time you dealt > with S, you know you were doing something stateful (rather than purely > functional with no side effects... with the exception of RDBMS related > stuff which is stateful on its face.) > > S has morphed into S, SHtml, RequestVars and SessionVars... but all > the explicit state is still kept in S. > > Does that help? > Yeah, muchly, thanks. That might be a nice thing to put in a comment in S.scala... -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] what does 'S' stand for?
In the files S.scala and SHtml.scala, it's kind of hard to figure out what "S" means. Session? Simple? Structured? Scala? SomethingElse? Thanks, Eric -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
[Lift] Re: scalajpa - while accessing two distincts databases, the second access is made with a connection to the first database
Oliver Lambert wrote: > Do we need to do some sort of course to understand this language? This could help: http://www.mitadmissions.org/topics/apply/the_freshman_application/index.shtml :) -- Eric Bowman Boboco Ltd ebow...@boboco.ie http://www.boboco.ie/ebowman/pubkey.pgp +35318394189/+353872801532 --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~--~~~~--~~--~--~---
