Nabble - JRuby - User

Re: JRuby + hibernate

2009-11-23T12:04:55Z

Ditch the xml, yay! :). It will be cool to see where this goes. Ill try to sift through it a bit tonight.

On Mon, Nov 23, 2009 at 2:58 PM, Chris Nelson <me@...> wrote:

For those not at jrubyconf, I've taken some of the code from my lightning talk and pushed it to github. It uses Charlie's jibernate code as a starting point, but the intention is to flesh it out enough to make it a viable ruby persistence back end. So far I've gotten annotation emitting working and managed to ditch the xml. There's lot's more to do. Github repo is: git://github.com/superchris/hibernate.git

--Chris

--
Aaron McLeod
http://agmprojects.com

JRuby + hibernate

2009-11-23T11:58:04Z

For those not at jrubyconf, I've taken some of the code from my lightning talk and pushed it to github. It uses Charlie's jibernate code as a starting point, but the intention is to flesh it out enough to make it a viable ruby persistence back end. So far I've gotten annotation emitting working and managed to ditch the xml. There's lot's more to do. Github repo is: git://github.com/superchris/hibernate.git

--Chris

Re: JRuby on windows thru proxy gem install fails

2009-11-23T05:57:47Z

Greg Ditrick wrote:

> Okay, I tried this on a MicroSuck box at home and it works fine, so it
> is the proxy server that is causing th problem.
>
> Now, my question is: how does the remote gem repositories work? Does it
> open a seperate port to download the remote file? I'm thinking it might
> and my work proxy server has that port locked down. Any insight would
> be great.
>
>
> Thanks,
>
> GregD

Hello Greg,

If you are running behind a proxy server, make sure the environment
variable HTTP_PROXY is set.

Best regards,
Radoslav.
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Re: JRuby-Rack JMS support - RubyThread leak

2009-11-23T04:23:55Z

On Mon, Nov 23, 2009 at 12:11 PM, Christian Seiler <chr.seiler@...> wrote:
> Frankly I think that it's beyond our scope to come up with a patch in this
> case. The usage of the WeakReferenceMap is simply broken IMO and the
> original author of that code should have a look. Do you want to file a bug?
> Otherwise I can do it as well if you prefer!

Done: JRUBY-4264

Thanks anyway!

Chris.

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Re: JRuby-Rack JMS support - RubyThread leak

2009-11-23T03:56:42Z

On Mon, Nov 23, 2009 at 11:17 AM, Christian Seiler <chr.seiler@...> wrote:
> Hi Chris,
> just wondering, did you actually open a ticket?

I actually haven't yet - my WeakReference patch isn't suitable for
just the reason you suggested. I'll get it opened today with or
without a fix.

The fix I'm running with now, to run a background reaper thread, does
seem to stop the leak I see.

Chris.

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Re: Stupid question (hopefully) on become_java!

2009-11-22T23:10:59Z

Nevermind, figured out that I needed to require 'core_ext' and that become_java! gives me the java class I need. Making progress again.

--Chris

On Mon, Nov 23, 2009 at 1:49 AM, Chris Nelson <me@...> wrote:

All,

I've been furiously coding on the hibernate stuff I demoed at JRubyconf today as I wait for my airplane and am trying to get annotations working. The API for the annotation configuration wants me to call an addAnnotatedClass method and pass in the java class of the model. I'm thinking after I call become_java! there ought be some way to get the java class in ruby code, but so far I have been unsuccessful. I tried calling JClass.for_name("ruby.Event") and that didn't seem to do it, and I can't find a ruby method to do it either. Weirder still, I tried to experiment with all this in jirb but when I create a class in jirb and call become_java! on it I get an undefined method error. All this leads me to believe I am missing something obvious and silly. Can someone clue me in?

--Chris

Stupid question (hopefully) on become_java!

2009-11-22T22:49:28Z

All,

I've been furiously coding on the hibernate stuff I demoed at JRubyconf today as I wait for my airplane and am trying to get annotations working. The API for the annotation configuration wants me to call an addAnnotatedClass method and pass in the java class of the model. I'm thinking after I call become_java! there ought be some way to get the java class in ruby code, but so far I have been unsuccessful. I tried calling JClass.for_name("ruby.Event") and that didn't seem to do it, and I can't find a ruby method to do it either. Weirder still, I tried to experiment with all this in jirb but when I create a class in jirb and call become_java! on it I get an undefined method error. All this leads me to believe I am missing something obvious and silly. Can someone clue me in?

--Chris

Re: "state of the art" in rails, and jruby?

2009-11-22T19:53:17Z

On Sun, Nov 22, 2009 at 8:44 AM, Michael Campbell
<michael.campbell@...> wrote:
> I have a commercial website for my wife's business that's written using Java
> (jsps + servlet, WebWork, Ibatis). I have wanted to redo it in rails for
> some time now (3 years!), but time has conspired against me.

Funny, I'm in almost exactly that same situation :-)

> My question boils down to, what are the jruby's team's thoughts or plans on
> keeping up with all this? Is "running rails" a high priority

Not speaking for anyone but myself, but having just spent most of
today at JRubyConf SF (and thanks to EngineYard and the rest of
the sponsors for a job well done!) -- I'd say yes, Rails running on
JRuby is a priority.

That's not to say that it's exactly like running MRI; you have to be
aware of gems with native extensions, etc. but there's no reason I
can see for you to hesitate to jump on board.

HTH,
--
Hassan Schroeder ------------------------ hassan.schroeder@...
twitter: @hassan

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Re: "state of the art" in rails, and jruby?

2009-11-22T09:19:20Z

Hi Michael,

On Sun, Nov 22, 2009 at 5:44 PM, Michael Campbell
<michael.campbell@...> wrote:
> I could of course do this in jruby/rails, which is my current thought, but
> am a little nervous with the flux in the rails world with respect to the
> upcoming merb "merge".
>
> My question boils down to, what are the jruby's team's thoughts or plans on
> keeping up with all this? Is "running rails" a high priority

I could probably say with confidence that running rails is always a
priority, and JRuby does that great right now and for sure will
continue to do so in the future. My understanding is that now JRuby is
a popular alternative to MRI and since many folks do run JRuby on
Rails, the rails core team itself also tests with JRuby.

Not to mention that Yehuda Katz, a lead dev of Merb, works at Engine
Yard, exactly where the 3 core JRuby guys are. I'm sure they will
figure this stuff out :)

Thanks,
--Vladimir

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Re: "state of the art" in rails, and jruby?

2009-11-22T08:56:37Z

Not to speak for any of the core developers, but as long as Rails stays as Ruby only code (which I'm sure it always will) then it should always work fine with JRuby. I think Rails 3.x is targeting Ruby 1.8.7 which JRuby already supports so you really shouldn't have anything to worry about. Obviously its possible that some change in Rails could expose an incompatibility with JRuby, but I'm sure it would get fixed very quickly. JRuby is designed to run (basically) any Ruby code out there so Rails should always work just fine.

I suppose there could possibly be issues with the ActiveRecord JDBC adapters since those are a little more Rails dependent but I'm sure the plan would be to update them to work with Rails 3 (if the don't already). Maybe Nick has some better idea about this.

Joe

On Sun, Nov 22, 2009 at 10:44 AM, Michael Campbell <michael.campbell@...> wrote:

I have a commercial website for my wife's business that's written using Java (jsps + servlet, WebWork, Ibatis). I have wanted to redo it in rails for some time now (3 years!), but time has conspired against me.

If I should be able to do this, I'd like to stick with my current hosting provider as they're inexpensive, good service, and local. They are, however, a Tomcat shop.

I could of course do this in jruby/rails, which is my current thought, but am a little nervous with the flux in the rails world with respect to the upcoming merb "merge".

My question boils down to, what are the jruby's team's thoughts or plans on keeping up with all this? Is "running rails" a high priority inasmuch as when Rails starts making some big changes (and to be fair, this might already be happening; I haven't paid a WHOLE lot of attention after the announcement)? Or is jruby to the point now where Rails changes can't really break it?

I know nothing is ever going to be absolute, but wanted to get a feel for priorities and general thoughts.

Thanks.

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"state of the art" in rails, and jruby?

2009-11-22T08:44:18Z

I have a commercial website for my wife's business that's written using
Java (jsps + servlet, WebWork, Ibatis). I have wanted to redo it in
rails for some time now (3 years!), but time has conspired against me.

If I should be able to do this, I'd like to stick with my current
hosting provider as they're inexpensive, good service, and local. They
are, however, a Tomcat shop.

I could of course do this in jruby/rails, which is my current thought,
but am a little nervous with the flux in the rails world with respect to
the upcoming merb "merge".

My question boils down to, what are the jruby's team's thoughts or plans
on keeping up with all this? Is "running rails" a high priority
inasmuch as when Rails starts making some big changes (and to be fair,
this might already be happening; I haven't paid a WHOLE lot of attention
after the announcement)? Or is jruby to the point now where Rails
changes can't really break it?

I know nothing is ever going to be absolute, but wanted to get a feel
for priorities and general thoughts.

Thanks.

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[ANN] Scuby 0.1 - Scala-JRuby integration

2009-11-21T13:36:40Z

Hi everyone,

I am proud to release my first open-source Ruby and Scala project:
Scuby. From the README:

Scuby is a thin integration layer between Scala and JRuby. It aims to
provide DSLs for Scala and JRuby to ease interoperability. The
original inspiration came from a couple of articles published by
Daniel Spiewak at his blog, http://www.codecommit.com. These are the
two articles:

JRuby Interop DSL in Scala
(http://www.codecommit.com/blog/ruby/jruby-interop-dsl-in-scala)
Integrating Scala into JRuby
(http://www.codecommit.com/blog/ruby/integrating-scala-into-jruby)

The idea architecture came also from a post by Ola Bini called
"Fractal Programming"
(http://olabini.com/blog/2008/06/fractal-programming/) in which he
talks about dividing a program in 3 layers: the static layer for
performance-critical functionality and those functions in which type
safety is paramount, a dynamic layer where you create a DSL, and a DSL
layer where the bulk of the business logic resides.

Scuby will be publicly presented at the 2009 RubyConf, in the talk
"Ruby is from Mars, Functional Languages are from Venus: Integrating
Ruby with Erlang, Scala or F#" by Angela O.K. Wright.

The project is sponsored by Abstra.cc (http://www.abstra.cc) where we
use it for our internal development.

Scuby can be found on GitHub (primary repository) at
http://github.com/mcamou/scuby, and on Kenai (secondary repository) at
http://kenai.com/projects/scuby

Enjoy!
-Mario.

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Nailgun slower than stock JRuby?

2009-11-21T10:20:31Z

I've been experimenting with using Nailgun to speed up rake tasks, to make developing a Rails app on JRuby a little more pleasant. But the odd thing is, Nailgun actually seems to be slower at most tasks than just running Java:

(First run is to warm up the nailgun):

$ time jruby --ng -S rake environment

real 0m18.704s

user 0m0.010s

sys 0m0.023s

And then after that:

$ time jruby --ng -S rake environment

real 0m12.418s

user 0m0.010s

sys 0m0.024s

$ time jruby -S rake environment

real 0m8.788s

user 0m8.951s

sys 0m0.605s

The operating system is OS X Snow Leopard:

$ uname -mrsv

Darwin 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386

$ java -version -d32 -server

java version "1.6.0_15"

Java(TM) SE Runtime Environment (build 1.6.0_15-b03-219)

Java HotSpot(TM) Server VM (build 14.1-b02-90, mixed mode)

The only bit of oddness in my setup that I can think of is that I'm running the JVM in 32-bit mode, with 'JAVA_OPTS=-d32 -server'. If I pull this out, go to a 64-bit JVM, and warm up Nailgun, here's what I get:

$ java -version

java version "1.6.0_15"

Java(TM) SE Runtime Environment (build 1.6.0_15-b03-219)

Java HotSpot(TM) 64-Bit Server VM (build 14.1-b02-90, mixed mode)

$ time jruby -S rake environment

real 0m13.618s

user 0m20.729s

sys 0m1.108s

$ time jruby --ng -S rake environment

real 0m11.550s

user 0m0.010s

sys 0m0.024s

This is pretty much the opposite of my experience with running JRuby apps with the '-d32' option, so I'm curious what I'm missing. Any ideas as to what I'm doing wrong?

Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-21T05:50:51Z

Hi guys,

thanks for all the comments on FFI, that will be helpful.

-- Thibaut

Re: Help: Can't require gems

2009-11-21T05:37:40Z

Aaron McLeod wrote:
> Im not sure how you may type it in jruby, but in ruby mri you usually
> need
> to require rubygems as well.
>
> require 'rubygems'

Oh, yeah, that's the point. Im Sorry. Just used Rails before, and never
had to do this there. ;)
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Re: Help: Can't require gems

2009-11-21T05:00:47Z

Im not sure how you may type it in jruby, but in ruby mri you usually need to require rubygems as well.

require 'rubygems'

On Sat, Nov 21, 2009 at 7:43 AM, Nils Ha <lists@...> wrote:

I just installed JRuby by downloading the source and then using ant.

I installed the gem "profligacy" for the easy use of Swing.

Now i wanted to try out the examples, but when using:

require 'profligacy'

it says:

test.rb:1:in `require': no such file to load -- profligacy (LoadError)
from test.rb:1

What did i do wrong ?
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--
Aaron McLeod
http://agmprojects.com

Help: Can't require gems

2009-11-21T04:43:45Z

I just installed JRuby by downloading the source and then using ant.

I installed the gem "profligacy" for the easy use of Swing.

Now i wanted to try out the examples, but when using:

require 'profligacy'

it says:

test.rb:1:in `require': no such file to load -- profligacy (LoadError)
from test.rb:1

What did i do wrong ?
--
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Re: StringIndexOutOfBoundsException with RSpec + Parsing YAML

2009-11-20T12:55:16Z

Ouch, I need some sleep. Anyways, the spec should fail and not crash, I guess. It runs onMRI 1.8.7.

Thanks a lot for the help.

Antonio Alegria

On Fri, Nov 20, 2009 at 8:02 PM, Vladimir Sizikov <vsizikov@...> wrote:

Hi António,

But you do realize that you're loading not the YAML file, but the rb
file itself? :)

YAML.load_file "config_yaml_spec.rb"

Thanks,
--Vladimir

2009/11/20 António Alegria <antoniomcalegria@...>:

> Hi,
>
> When doing jspec config_yaml_spec.rb (attached) a java
> StringIndexOutOfBoundsException occurs.
>
> The strangest part is that small changes in the script, such as removing one
> RSpec example or removing the whole describe block and running it with plain
> JRuby doesn't raise this error.
>
> Used Platform:
> --------------------
>
> JRuby version: jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-16 6586)
> (Java HotSpot(TM) Client VM 1.6.0_03-p3) [i386-java]
> Mac OS X 10.5 with Soylatte 1.6 1.0.3 i386
>
> Full Exception:
> --------------------
>
> String.java:398:in `checkBounds': java.lang.StringIndexOutOfBoundsException:
> String index out of range: -1
>     from String.java:443:in `<init>'
>     from RubyErrHandler.java:28:in `handle'
>     from TokenScanner.java:19:in `error'
>     from DefaultYAMLParser.java:803:in `yyerror'
>     from DefaultYAMLParser.java:329:in `yyparse'
>     from Parser.java:290:in `yechtparse'
>     from Parser.java:284:in `parse'
>     from YParser.java:152:in `load'
>     from org/yecht/ruby/YParser$s_method_0_1$RUBYINVOKER$load.gen:-1:in
> `call'
>     from JavaMethod.java:623:in `call'
>     from DynamicMethod.java:176:in `call'
>     from CachingCallSite.java:147:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from LocalAsgnNode.java:123:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:147:in `call'
>     from FCallOneArgNode.java:36:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:268:in `yield'
>     from Block.java:194:in `yield'
>     from RubyIO.java:1067:in `open'
>     from org/jruby/RubyIO$s_method_0_2$RUBYFRAMEDINVOKER$open.gen:-1:in
> `call'
>     from DynamicMethod.java:180:in `call'
>     from CachingCallSite.java:156:in `callBlock'
>     from CachingCallSite.java:163:in `call'
>     from CallOneArgBlockNode.java:60:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:310:in `cacheAndCall'
>     from CachingCallSite.java:149:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from RootNode.java:129:in `interpret'
>     from Ruby.java:2419:in `loadFile'
>     from ExternalScript.java:64:in `load'
>     from LoadService.java:249:in `load'
>     from RubyKernel.java:932:in `load'
>     from org/jruby/RubyKernel$s_method_0_1$RUBYFRAMEDINVOKER$load.gen:-1:in
> `call'
>     from DynamicMethod.java:180:in `call'
>     from DynamicMethod.java:176:in `call'
>     from CachingCallSite.java:147:in `call'
>     from FCallOneArgNode.java:36:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:268:in `yield'
>     from Block.java:194:in `yield'
>     from RubyArray.java:1635:in `eachCommon'
>     from RubyArray.java:1642:in `each'
>     from org/jruby/RubyArray$i_method_0_0$RUBYFRAMEDINVOKER$each.gen:-1:in
> `call'
>     from CachingCallSite.java:116:in `callBlock'
>     from CachingCallSite.java:123:in `call'
>     from CallNoArgBlockNode.java:64:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:147:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from IfNode.java:119:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from EnsureNode.java:96:in `interpret'
>     from BeginNode.java:83:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from InterpretedMethod.java:136:in `call'
>     from DefaultMethod.java:153:in `call'
>     from CachingCallSite.java:290:in `cacheAndCall'
>     from CachingCallSite.java:109:in `call'
>     from CallNoArgNode.java:61:in `interpret'
>     from OrNode.java:97:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:136:in `call'
>     from DefaultMethod.java:153:in `call'
>     from CachingCallSite.java:290:in `cacheAndCall'
>     from CachingCallSite.java:109:in `call'
>     from VCallNode.java:85:in `interpret'
>     from FCallOneArgNode.java:36:in `interpret'
>     from IfNode.java:119:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:305:in `yield'
>     from BlockBody.java:72:in `call'
>     from BlockBody.java:78:in `call'
>     from Block.java:89:in `call'
>     from RubyProc.java:221:in `call'
>     from RubyProc.java:204:in `call'
>     from Ruby.java:2616:in `tearDown'
>     from Main.java:274:in `run'
>     from Main.java:117:in `run'
>     from Main.java:97:in `main'
> ---
>
> Thanks,
>
> Antonio Alegria
>

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Re: StringIndexOutOfBoundsException with RSpec + Parsing YAML

2009-11-20T12:41:08Z

So I've filed the bug:

http://jira.codehaus.org/browse/JRUBY-4254

No matter how bad the input data is, JRuby/yecht should not crash.
I've also added a simple patch for yecht that fixes the problem, but I
need Ola's OK for that.

Thanks,
--Vladimir

2009/11/20 António Alegria <antoniomcalegria@...>:

> Hi,
>
> When doing jspec config_yaml_spec.rb (attached) a java
> StringIndexOutOfBoundsException occurs.
>
> The strangest part is that small changes in the script, such as removing one
> RSpec example or removing the whole describe block and running it with plain
> JRuby doesn't raise this error.
>
> Used Platform:
> --------------------
>
> JRuby version: jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-16 6586)
> (Java HotSpot(TM) Client VM 1.6.0_03-p3) [i386-java]
> Mac OS X 10.5 with Soylatte 1.6 1.0.3 i386
>
> Full Exception:
> --------------------
>
> String.java:398:in `checkBounds': java.lang.StringIndexOutOfBoundsException:
> String index out of range: -1
>     from String.java:443:in `<init>'
>     from RubyErrHandler.java:28:in `handle'
>     from TokenScanner.java:19:in `error'
>     from DefaultYAMLParser.java:803:in `yyerror'
>     from DefaultYAMLParser.java:329:in `yyparse'
>     from Parser.java:290:in `yechtparse'
>     from Parser.java:284:in `parse'
>     from YParser.java:152:in `load'
>     from org/yecht/ruby/YParser$s_method_0_1$RUBYINVOKER$load.gen:-1:in
> `call'
>     from JavaMethod.java:623:in `call'
>     from DynamicMethod.java:176:in `call'
>     from CachingCallSite.java:147:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from LocalAsgnNode.java:123:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:147:in `call'
>     from FCallOneArgNode.java:36:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:268:in `yield'
>     from Block.java:194:in `yield'
>     from RubyIO.java:1067:in `open'
>     from org/jruby/RubyIO$s_method_0_2$RUBYFRAMEDINVOKER$open.gen:-1:in
> `call'
>     from DynamicMethod.java:180:in `call'
>     from CachingCallSite.java:156:in `callBlock'
>     from CachingCallSite.java:163:in `call'
>     from CallOneArgBlockNode.java:60:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:310:in `cacheAndCall'
>     from CachingCallSite.java:149:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from RootNode.java:129:in `interpret'
>     from Ruby.java:2419:in `loadFile'
>     from ExternalScript.java:64:in `load'
>     from LoadService.java:249:in `load'
>     from RubyKernel.java:932:in `load'
>     from org/jruby/RubyKernel$s_method_0_1$RUBYFRAMEDINVOKER$load.gen:-1:in
> `call'
>     from DynamicMethod.java:180:in `call'
>     from DynamicMethod.java:176:in `call'
>     from CachingCallSite.java:147:in `call'
>     from FCallOneArgNode.java:36:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:268:in `yield'
>     from Block.java:194:in `yield'
>     from RubyArray.java:1635:in `eachCommon'
>     from RubyArray.java:1642:in `each'
>     from org/jruby/RubyArray$i_method_0_0$RUBYFRAMEDINVOKER$each.gen:-1:in
> `call'
>     from CachingCallSite.java:116:in `callBlock'
>     from CachingCallSite.java:123:in `call'
>     from CallNoArgBlockNode.java:64:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from InterpretedMethod.java:173:in `call'
>     from DefaultMethod.java:169:in `call'
>     from CachingCallSite.java:147:in `call'
>     from CallOneArgNode.java:57:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from IfNode.java:119:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from EnsureNode.java:96:in `interpret'
>     from BeginNode.java:83:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from BlockNode.java:71:in `interpret'
>     from InterpretedMethod.java:136:in `call'
>     from DefaultMethod.java:153:in `call'
>     from CachingCallSite.java:290:in `cacheAndCall'
>     from CachingCallSite.java:109:in `call'
>     from CallNoArgNode.java:61:in `interpret'
>     from OrNode.java:97:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedMethod.java:136:in `call'
>     from DefaultMethod.java:153:in `call'
>     from CachingCallSite.java:290:in `cacheAndCall'
>     from CachingCallSite.java:109:in `call'
>     from VCallNode.java:85:in `interpret'
>     from FCallOneArgNode.java:36:in `interpret'
>     from IfNode.java:119:in `interpret'
>     from NewlineNode.java:104:in `interpret'
>     from InterpretedBlock.java:317:in `evalBlockBody'
>     from InterpretedBlock.java:305:in `yield'
>     from BlockBody.java:72:in `call'
>     from BlockBody.java:78:in `call'
>     from Block.java:89:in `call'
>     from RubyProc.java:221:in `call'
>     from RubyProc.java:204:in `call'
>     from Ruby.java:2616:in `tearDown'
>     from Main.java:274:in `run'
>     from Main.java:117:in `run'
>     from Main.java:97:in `main'
> ---
>
> Thanks,
>
> Antonio Alegria
>
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Re: StringIndexOutOfBoundsException with RSpec + Parsing YAML

2009-11-20T12:02:05Z

Hi António,

But you do realize that you're loading not the YAML file, but the rb
file itself? :)

YAML.load_file "config_yaml_spec.rb"

Thanks,
--Vladimir

2009/11/20 António Alegria <antoniomcalegria@...>:

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StringIndexOutOfBoundsException with RSpec + Parsing YAML

2009-11-20T11:54:34Z

Hi,

When doing jspec config_yaml_spec.rb (attached) a java StringIndexOutOfBoundsException occurs.

The strangest part is that small changes in the script, such as removing one RSpec example or removing the whole describe block and running it with plain JRuby doesn't raise this error.

Used Platform:
--------------------

JRuby version: jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-16 6586) (Java HotSpot(TM) Client VM 1.6.0_03-p3) [i386-java]
Mac OS X 10.5 with Soylatte 1.6 1.0.3 i386

Full Exception:
--------------------

String.java:398:in `checkBounds': java.lang.StringIndexOutOfBoundsException: String index out of range: -1
    from String.java:443:in `<init>'
    from RubyErrHandler.java:28:in `handle'
    from TokenScanner.java:19:in `error'
    from DefaultYAMLParser.java:803:in `yyerror'
    from DefaultYAMLParser.java:329:in `yyparse'
    from Parser.java:290:in `yechtparse'
    from Parser.java:284:in `parse'
    from YParser.java:152:in `load'
    from org/yecht/ruby/YParser$s_method_0_1$RUBYINVOKER$load.gen:-1:in `call'
    from JavaMethod.java:623:in `call'
    from DynamicMethod.java:176:in `call'
    from CachingCallSite.java:147:in `call'
    from CallOneArgNode.java:57:in `interpret'
    from LocalAsgnNode.java:123:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedMethod.java:173:in `call'
    from DefaultMethod.java:169:in `call'
    from CachingCallSite.java:147:in `call'
    from FCallOneArgNode.java:36:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedBlock.java:317:in `evalBlockBody'
    from InterpretedBlock.java:268:in `yield'
    from Block.java:194:in `yield'
    from RubyIO.java:1067:in `open'
    from org/jruby/RubyIO$s_method_0_2$RUBYFRAMEDINVOKER$open.gen:-1:in `call'
    from DynamicMethod.java:180:in `call'
    from CachingCallSite.java:156:in `callBlock'
    from CachingCallSite.java:163:in `call'
    from CallOneArgBlockNode.java:60:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedMethod.java:173:in `call'
    from DefaultMethod.java:169:in `call'
    from CachingCallSite.java:310:in `cacheAndCall'
    from CachingCallSite.java:149:in `call'
    from CallOneArgNode.java:57:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from BlockNode.java:71:in `interpret'
    from RootNode.java:129:in `interpret'
    from Ruby.java:2419:in `loadFile'
    from ExternalScript.java:64:in `load'
    from LoadService.java:249:in `load'
    from RubyKernel.java:932:in `load'
    from org/jruby/RubyKernel$s_method_0_1$RUBYFRAMEDINVOKER$load.gen:-1:in `call'
    from DynamicMethod.java:180:in `call'
    from DynamicMethod.java:176:in `call'
    from CachingCallSite.java:147:in `call'
    from FCallOneArgNode.java:36:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedBlock.java:317:in `evalBlockBody'
    from InterpretedBlock.java:268:in `yield'
    from Block.java:194:in `yield'
    from RubyArray.java:1635:in `eachCommon'
    from RubyArray.java:1642:in `each'
    from org/jruby/RubyArray$i_method_0_0$RUBYFRAMEDINVOKER$each.gen:-1:in `call'
    from CachingCallSite.java:116:in `callBlock'
    from CachingCallSite.java:123:in `call'
    from CallNoArgBlockNode.java:64:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from BlockNode.java:71:in `interpret'
    from InterpretedMethod.java:173:in `call'
    from DefaultMethod.java:169:in `call'
    from CachingCallSite.java:147:in `call'
    from CallOneArgNode.java:57:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from BlockNode.java:71:in `interpret'
    from IfNode.java:119:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from BlockNode.java:71:in `interpret'
    from EnsureNode.java:96:in `interpret'
    from BeginNode.java:83:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from BlockNode.java:71:in `interpret'
    from InterpretedMethod.java:136:in `call'
    from DefaultMethod.java:153:in `call'
    from CachingCallSite.java:290:in `cacheAndCall'
    from CachingCallSite.java:109:in `call'
    from CallNoArgNode.java:61:in `interpret'
    from OrNode.java:97:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedMethod.java:136:in `call'
    from DefaultMethod.java:153:in `call'
    from CachingCallSite.java:290:in `cacheAndCall'
    from CachingCallSite.java:109:in `call'
    from VCallNode.java:85:in `interpret'
    from FCallOneArgNode.java:36:in `interpret'
    from IfNode.java:119:in `interpret'
    from NewlineNode.java:104:in `interpret'
    from InterpretedBlock.java:317:in `evalBlockBody'
    from InterpretedBlock.java:305:in `yield'
    from BlockBody.java:72:in `call'
    from BlockBody.java:78:in `call'
    from Block.java:89:in `call'
    from RubyProc.java:221:in `call'
    from RubyProc.java:204:in `call'
    from Ruby.java:2616:in `tearDown'
    from Main.java:274:in `run'
    from Main.java:117:in `run'
    from Main.java:97:in `main'
---

Thanks,

Antonio Alegria

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config_yaml_spec.yml (10K) Download Attachment
config_yaml_spec.rb (374 bytes) Download Attachment

Re: at_exit with JRuby Embed?

2009-11-20T09:10:57Z

Hi Adam,

On Wed, Nov 18, 2009 at 9:45 PM, Adam Murray <adamjmurray@...> wrote:
> What is the preferred way to trigger at_exit blocks with the new JRuby
> Embed API? Previously I was using BSF's terminate() method. I know
> that behavior is not part of JSR223 so maybe it's still an open
> question?

at_exit blocks are executed at the end of each evaluation. BSF's
terminate() like post-processing runs always when runScriplet() or
EvalUnit.run() method is invoked. So, you don't need terminate() just
for at_exit block.

> PS - thanks to Yoko (and anyone else?) for updating all the JRuby
> embedding info on the wiki for the 1.4 release. It's been very
> helpful, especially the comparison of Core, JSR223, and BSF.

Thanks for looking at it. If you want more information there, feel
free to suggest that.

-Yoko

>
> Adam
>
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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T23:27:10Z

2009/11/20 Thibaut Barrère <thibaut.barrere@...>:
>> Looks very cool. I just did a quick code drive-by at your GitHub repo and
>> couldn't help but wonder if implementing via http://github.com/ffi/ffi might
>> be even more interesting.
>
> it would be - I thought about it at first, but at the time ffi didn't work
> on windows (I used jVSTwRapper to provide portability).
> Is there a chance to see FFI working on windows ?

Vladimir and Jon both commented, but just to be explicit, FFI on
windows should work fine on both JRuby 1.4.0, and CRuby 1.8.x/1.9.x
with the FFI 0.5.0 or later gem.

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RE: undefined method class_eval for ActiveRecord::ConnectionAdapters::JdbcAdapter

2009-11-19T22:39:39Z

undefined method class_eval for ActiveRecord::ConnectionAdapters::JdbcAdapter

Hi,

I’ve been trying to get this running but am not successful. I have tried with the oracle jdbc adapter as well as the old ActiveRecord_JDBC package. I am running Rails v1.2.6. My current platform uses Ruby 1.8.7.

Looking forward to your help.

Thanks and regards

Varun

From: Dhussa, Varun [mailto:vdhussa@...]
Sent: Wednesday, November 18, 2009 1:50 PM
To: user@...
Subject: [jruby-user] undefined method class_eval for ActiveRecord::ConnectionAdapters::JdbcAdapter

Hi,

I am trying to port an application from c-Ruby to JRuby. I have an Oracle database backend and have added the JDBC driver jars to the lib dir of JRuby. Also, I have set the required connection parameters in database.yml.

Webrick is starting fine, but for any request, I get the following error:

RedirectionController: missing default helper path redirection_helper

undefined method `class_eval' for #<ActiveRecord::ConnectionAdapters::JdbcAdapter:0x1fffa73>^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-jdbc-adapter-0.9.2/lib/jdbc_adapter/jdbc_oracle.rb:29:in `extended'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-jdbc-adapter-0.9.2/lib/active_record/connection_adapters/jdbc_adapter.rb:456:in `initialize'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-jdbc-adapter-0.9.2/lib/active_record/connection_adapters/jdbc_adapter.rb:49:in `new'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-jdbc-adapter-0.9.2/lib/active_record/connection_adapters/jdbc_adapter.rb:49:in `jdbc_connection'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:262:in `connection='^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/query_cache.rb:54:in `connection='^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:230:in `retrieve_connection'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/connection_adapters/abstract/connection_specification.rb:78:in `connection'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/base.rb:763:in `columns'^M

/home/vdhussa/Work/workspaces/jv3.0/devtools/dewey-3.0/dewey/vendor/plugins/simple_localization/lib/features/localized_column_human_name.rb:61:in `columns'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/base.rb:776:in `column_names'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/base.rb:789:in `column_methods_hash'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/base.rb:1757:in `respond_to?'^M

/home/vdhussa/Work/workspaces/jv3.0/devtools/dewey-3.0/dewey/vendor/plugins/attribute_i18n/lib/attribute_i18n.rb:58:in `respond_to_with_i18n_attribute_check?'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/1.8/pstore.rb:349:in `dump'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/1.8/pstore.rb:330:in `transaction'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/actionpack-1.13.6/lib/action_controller/cgi_ext/pstore_performance_fix.rb:26:in `initialize'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/1.8/cgi/session.rb:280:in `new'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/1.8/cgi/session.rb:280:in `initialize'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/actionpack-1.13.6/lib/action_controller/cgi_process.rb:136:in `new'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/actionpack-1.13.6/lib/action_controller/cgi_process.rb:136:in `session'^M

/home/vdhussa/jruby-1.4.0/lib/ruby/gems/1.8/gems/actionpack-1.13.6/lib/action_controller/cgi_process.rb:168:in `stale_session_check!'^M

Any pointers and solutions would be helpful.

Thanks and regards

Varun

activerecord-jdbc-adapter 0.9.2 oracle issues

2009-11-19T14:17:07Z

Is there an ETA for a new version of the activerecord-jdbc-adapter? I'm running into the same oracle issues others have logged in JIRA. It's preventing us from moving to JRuby 1.4.0.

This email communication and any files transmitted with it may contain confidential and or proprietary information and is provided for the use of the intended recipient only. Any review, retransmission or dissemination of this information by anyone other than the intended recipient is prohibited. If you receive this email in error, please contact the sender and delete this communication and any copies immediately. Thank you.

http://www.encana.com

Re: Rails on JRuby, activerecord-jdbc-adapter, db2 boolean type

2009-11-19T08:05:45Z

No concerns. Just lazy (and busy with other concerns). Java is my primary development language and I have been working on a project whose scope continues to grow (although on IBM i I spend a fair amount of time in ILE RPG). I keep meaning to run a final series of tests on at least the 2 supported OS versions (V5R4M0 and IBM i 6.1) but I haven't had the time.

Pete

Andy Hu wrote:

Peter, it's great! I will try to see in a few weeks after I come over this
hard time.

Why not submitted to Nick's project? Any concerns or?


Pete Helgren wrote:

No.  Not a problem at all.  I have had some issues and put together a 
AR-JDBC driver (still not submitted to Nick's project...yet).  There is 
a boolean to int cast in the driver (I think).

You can find it here:

http://www.petesworkshop.com/downloads/jdbc_db2i.rb

You'll need to update jdbc_adapter_spec.rb to list the driver. You might 
want to give it a try.  It is written for DB2 for i.

Pete

Andy Hu wrote:

Thanks Pete, you're right. DB2 is running on IBM i machine. That's a
problem?


Pete Helgren wrote:

It sounds like a LUW installation.  IBM i has some syntactical 
differences to the DB2 most folks know.  Since you indicated  DB 9 in a 
later post, I can pretty much rule out the i.

My rails experience hasn't been quite as "vanilla" when it comes to 
legacy schemas.  On current (21st century)  schemas, no problems.  But 
the legacy schemas (30 years old) I work with, embedded # in column 
names, multi-column keys and a few other things have made it a
challenge.

Pete

Finegan, Richard [HDS - WC] wrote:

i don't know if they are IBM i machines, the machines themselves are
thousands of miles away so i've never seen the actual hardware

unfortunately a few google searches didn't reveal to me any way to
identify them from the command line either

Richard F.


-----Original Message-----
From: Pete Helgren [Pete@...] 
Sent: Tuesday, November 17, 2009 1:25 PM
To: user@...
Subject: Re: [jruby-user] Rails on JRuby, activerecord-jdbc-adapter,
db2
boolean type

Richard,

I am curious.  Is the "legacy" database on an IBM i (AS/400) by chance?

That happens to be the DB2 platform I am most familiar with and I have 
had a few challenges.  Embedded '#' in column names for one.

No real reason for the query.  There are only a few DB/2 for i5/OS
folks

on the planet using JRuby so I got curious.

Pete


Finegan, Richard [HDS - WC] wrote:

i'm working on a project using JRuby, Rails, and DB2...the db2

database

is a legacy database schema and i don't bother converting between 0s

and

1s or 'Y's and 'N's to boolean types

no special gotchas and everything works great, just in case you wanted
the extra reassurance for your project...sorry, this probably isn't

much

help!

Richard F.


-----Original Message-----
From: Andy Hu [andyhu1007@...] 
Sent: Monday, November 16, 2009 4:14 AM
To: user@...
Subject: [jruby-user] Rails on JRuby, activerecord-jdbc-adapter, db2
boolean type


Hi All,

    Has anyone worked on project based on Rails on JRuby and db2
database?

    As we know db2 has no native boolean type, I thought
activerecord-jdbc-adapter can convert it automatically. But actually

as

Nick
replied, he has not worked on db2, so that this issue has not been

taken

care of.
 
    Then every time when I need to assign/fetch I have to convert it
manually: from 'Yes', 'True', TrueClass, FalseClass... to smallint 1,

or
reverse.

    I shout here just want to know if anyone encountered same problem

or

even better someone has solved it out? Actually I really like to push

batch for it.

Regards,
Andy

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Re: include_package strangeness

2009-11-19T07:14:50Z

Sorry for joining the ancient thread now - just noticed it.

> referencing the classes first is a pretty good solution

I think the best way to deal with this is the same as for extending
classes that we know exist already: use class_eval.
It can hit 2 birds with 1 stone: 1) should work safely with
include_package, 2) in general, it will complain if you were
"extending" the wrong class by mistake (which IMHO is a common annoyance).

So:
MyJavaClass.class_eval do
def my_extension
end
end

rather than:

class MyJavaClass
def my_extension
end
end

Gergo

2009/7/21 Charles Oliver Nutter <headius@...>:

> On Fri, Jul 17, 2009 at 3:05 PM, Timothy
> Hanson<thanson@...> wrote:
>> I'm extending Java classes in Ruby, but there's one odd catch. I use include_package to pull the whole Java package into a Ruby module. The problem is that the classes are defined lazily, so if my extension is defined before the Java entity is referenced, rather than "extending" the java class, I hide it. Eg:
>
> Yeah, this is a known limitation of include_package. Since it just
> installs a const_missing hook, it's subject to constant lookup
> behaviors. In this case, it does not fire the hook when you just open
> a class, because you could honestly just be defining a new class.
>
> Your workaround of referencing the classes first is a pretty good
> solution. We've also hoped that some day we could include a package
> indexing tool that eagerly defines the constants, but that has never
> happened. If someone wanted to try to integrate Jython's package
> indexer, the code is available here:
>
> http://code.google.com/p/jvm-language-runtime/source/browse/#svn/trunk/packagecache
>
> - Charlie
>
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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T07:11:04Z

I forgot to mention that as of 0.5.0, FFI provides both mswin32 and mingw32 "fat" (both 1.8 and 1.9) binary gems so that "gem install ffi" should Just Work for Windows users.

Also (a bit off topic), for those wanting to do so, we've had success with Windows users building FFI from source using RubyInstallers http://wiki.github.com/oneclick/rubyinstaller/development-kit

Jon

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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T06:50:00Z

> Is there a chance to see FFI working on windows ?
>
> cheers and thanks for the feedback,
>
> Thibaut
> --
> http://www.learnivore.com

Actually, FFI as of 0.5.0 is working GREAT on Windows for me so far!

You'll probably dig this post http://groups.google.com/group/ruby-ffi/browse_thread/thread/5be3b2be2e75dc3a of FFI RubyGame.

FYI, as part of the RubyInstaller project http://rubyinstaller.org/ , we're tracking FFI's gem status at http://wiki.github.com/oneclick/rubyinstaller/gem-list . In addition, Wayne and the rest of Team FFI at http://groups.google.com/group/ruby-ffi are very helpful.

I'm also evaluating what it would look like as a bundled part of RubyInstaller in site_ruby for both 1.8 and 1.9.

Finally, when I get a few minutes here and there, I'm trying to finish http://wiki.github.com/ffi/ffi/windows-examples (and http://wiki.github.com/ffi/ffi/core-concepts) to help jumpstart Windows folks into starting to play more with FFI.

Jon

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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T06:46:34Z

Hi,

On Thu, Nov 19, 2009 at 3:34 PM, Thibaut Barrère
<thibaut.barrere@...> wrote:
>> Looks very cool. I just did a quick code drive-by at your GitHub repo and
>> couldn't help but wonder if implementing via http://github.com/ffi/ffi might
>> be even more interesting.
>
> it would be - I thought about it at first, but at the time ffi didn't work
> on windows (I used jVSTwRapper to provide portability).
> Is there a chance to see FFI working on windows ?

FFI should work on Windows fine. At least, in x32 mode.

Thanks,
--Vladimir

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Re: Problem with RSpec+Maven+jruby-complete.jar

2009-11-19T06:42:00Z

thanx

On Thu, Nov 19, 2009 at 8:01 PM, Vladimir Sizikov <vsizikov@...> wrote:

> Hi,
>
> On Tue, Nov 17, 2009 at 5:34 AM, kristian <m.kristian@...> wrote:
>> I filed I bug
>> http://jira.codehaus.org/browse/JRUBY-4238
>
> OK, so both bugs have been fixed:
> - http://jira.codehaus.org/browse/JRUBY-4238
> - http://jira.codehaus.org/browse/JRUBY-4249
>
> And executing the spec task via rake from jruby-complete.jar should
> work now, verified on Windows and Linux.
>
> Thanks,
> --Vladimir
>
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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T06:34:53Z

Looks very cool. I just did a quick code drive-by at your GitHub repo and couldn't help but wonder if implementing via http://github.com/ffi/ffi might be even more interesting.

it would be - I thought about it at first, but at the time ffi didn't work on windows (I used jVSTwRapper to provide portability).

Is there a chance to see FFI working on windows ?

cheers and thanks for the feedback,

Thibaut

http://www.learnivore.com

Re: Problem with RSpec+Maven+jruby-complete.jar

2009-11-19T06:31:21Z

Hi,

On Tue, Nov 17, 2009 at 5:34 AM, kristian <m.kristian@...> wrote:
> I filed I bug
> http://jira.codehaus.org/browse/JRUBY-4238

OK, so both bugs have been fixed:
- http://jira.codehaus.org/browse/JRUBY-4238
- http://jira.codehaus.org/browse/JRUBY-4249

And executing the spec task via rake from jruby-complete.jar should
work now, verified on Windows and Linux.

Thanks,
--Vladimir

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Re: [ANN] Using JRuby+Java to prototype audio VST plugins

2009-11-19T06:16:25Z

> some feedback of a JRuby project of mine: I used JRuby+Java to create audio
> (VST) plugins. Not the typical project, but was interesting from an interop
> point of view :)

Looks very cool. I just did a quick code drive-by at your GitHub repo and couldn't help but wonder if implementing via http://github.com/ffi/ffi might be even more interesting.

Jon

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Re: Rails on JRuby, activerecord-jdbc-adapter, db2 boolean type

2009-11-19T02:22:37Z

Peter, it's great! I will try to see in a few weeks after I come over this hard time.

Why not submitted to Nick's project? Any concerns or?

Pete Helgren wrote:

No. Not a problem at all. I have had some issues and put together a
AR-JDBC driver (still not submitted to Nick's project...yet). There is
a boolean to int cast in the driver (I think).

You can find it here:

http://www.petesworkshop.com/downloads/jdbc_db2i.rb

You'll need to update jdbc_adapter_spec.rb to list the driver. You might
want to give it a try. It is written for DB2 for i.

Pete

Andy Hu wrote:
> Thanks Pete, you're right. DB2 is running on IBM i machine. That's a problem?
>
>
> Pete Helgren wrote:
>
>> It sounds like a LUW installation. IBM i has some syntactical
>> differences to the DB2 most folks know. Since you indicated DB 9 in a
>> later post, I can pretty much rule out the i.
>>
>> My rails experience hasn't been quite as "vanilla" when it comes to
>> legacy schemas. On current (21st century) schemas, no problems. But
>> the legacy schemas (30 years old) I work with, embedded # in column
>> names, multi-column keys and a few other things have made it a challenge.
>>
>> Pete
>>
>> Finegan, Richard [HDS - WC] wrote:
>>
>>> i don't know if they are IBM i machines, the machines themselves are
>>> thousands of miles away so i've never seen the actual hardware
>>>
>>> unfortunately a few google searches didn't reveal to me any way to
>>> identify them from the command line either
>>>
>>> Richard F.
>>>
>>>
>>> -----Original Message-----
>>> From: Pete Helgren [mailto:Pete@valadd.com]
>>> Sent: Tuesday, November 17, 2009 1:25 PM
>>> To: user@jruby.codehaus.org
>>> Subject: Re: [jruby-user] Rails on JRuby, activerecord-jdbc-adapter, db2
>>> boolean type
>>>
>>> Richard,
>>>
>>> I am curious. Is the "legacy" database on an IBM i (AS/400) by chance?
>>>
>>> That happens to be the DB2 platform I am most familiar with and I have
>>> had a few challenges. Embedded '#' in column names for one.
>>>
>>> No real reason for the query. There are only a few DB/2 for i5/OS folks
>>>
>>> on the planet using JRuby so I got curious.
>>>
>>> Pete
>>>
>>>
>>> Finegan, Richard [HDS - WC] wrote:
>>>
>>>
>>>> i'm working on a project using JRuby, Rails, and DB2...the db2
>>>>
>>>>
>>> database
>>>
>>>
>>>> is a legacy database schema and i don't bother converting between 0s
>>>>
>>>>
>>> and
>>>
>>>
>>>> 1s or 'Y's and 'N's to boolean types
>>>>
>>>> no special gotchas and everything works great, just in case you wanted
>>>> the extra reassurance for your project...sorry, this probably isn't
>>>>
>>>>
>>> much
>>>
>>>
>>>> help!
>>>>
>>>> Richard F.
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: Andy Hu [mailto:andyhu1007@gmail.com]
>>>> Sent: Monday, November 16, 2009 4:14 AM
>>>> To: user@jruby.codehaus.org
>>>> Subject: [jruby-user] Rails on JRuby, activerecord-jdbc-adapter, db2
>>>> boolean type
>>>>
>>>>
>>>> Hi All,
>>>>
>>>> Has anyone worked on project based on Rails on JRuby and db2
>>>> database?
>>>>
>>>> As we know db2 has no native boolean type, I thought
>>>> activerecord-jdbc-adapter can convert it automatically. But actually
>>>>
>>>>
>>> as
>>>
>>>
>>>> Nick
>>>> replied, he has not worked on db2, so that this issue has not been
>>>>
>>>>
>>> taken
>>>
>>>
>>>> care of.
>>>>
>>>> Then every time when I need to assign/fetch I have to convert it
>>>> manually: from 'Yes', 'True', TrueClass, FalseClass... to smallint 1,
>>>>
>>>>
>>> 0
>>>
>>>
>>>> or
>>>> reverse.
>>>>
>>>> I shout here just want to know if anyone encountered same problem
>>>>
>>>>
>>> or
>>>
>>>
>>>> even better someone has solved it out? Actually I really like to push
>>>>
>>>>
>>> a
>>>
>>>
>>>> batch for it.
>>>>
>>>> Regards,
>>>> Andy
>>>>
>>>>
>>>>
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>>>
>>
>
>