Open source LMS/LCMS recommendations

I've already looked at a few and I think Atutor seems to be a
good choice.
I manage a company intranet site that delivers staff training
(soft/technical skills) plus also English language training. I
would like to enable the site to receive results from captivate and
other elearning applications.
Thanks in advance to anyone who can provide me with some good
advice.

Bangkokian wrote:
> I've already looked at a few and I think Atutor seems to
be a good choice.
> I manage a company intranet site that delivers staff
training (soft/technical
> skills) plus also English language training. I would
like to enable the site to
> receive results from captivate and other elearning
applications.
> Thanks in advance to anyone who can provide me with some
good advice.
>
Have a look at Ilias.
Mark

Similar Messages

[ANN] XINS 2.1 open source Web Services framework release

XINS 2.1 Web Services Framework has been released.
XINS is an open source Web Services Framework based on simple specifications of the Web Service in XML and
generation of code and documentation from the specification.
The generation includes Client JAR with its Javadoc, Server side template with its Javadoc, documentation in OpenDocument Format,
documentation in HTML including the test forms, WSDL file, unit tests (JUnit) and stubs.
The Web Services accept several protocols including REST, SOAP, XML-RPC, XML, JSON Yahoo! and JSON-RPC.
What's new:
* Start the API with java -jar <api name>.war
* Improved generated specification in OpenDocument Format
* Include/exclude calling convention with ACLs
* New calling convention that maps SOAP request and response as the wsdl2api command mapping.
* Smaller generated build.xml
* Added possibility to include other runtime properties files
* The runtime property location can be a URL
* Swing Graphical User Interface
* New tools: emma, glean, webstart
* New target: javadoc-test-<api name>, javadoc-apis
* Bug fixes and small RFEs
Download XINS 2.1:
Windows installer: http://prdownloads.sf.net/xins/xins-2.1.exe?download
TAR GZ archive: http://prdownloads.sf.net/xins/xins-2.1.tgz?download
Resources:
Web site: http://xins.sourceforge.net/
XINS demos: http://xins.sourceforge.net/demo.html
Documentation: http://xins.sourceforge.net/documentation.html
User guide: http://xins.sourceforge.net/docs/index.html

I recommend you implement your web service with JAX-WS 2.0
Axis (both version) are good but why do you want to use something that is not included in JEE API, when Java provide same thing with better performance.
personally try to prevent non standard technologies despite they can be better than core java implementation sometimes.
I don't know Xfire.
the good:
-JAX-WS performance is better than axis,
- you can create your web service simply with annotation.(this means write class and then make it as a service easily)
- support every kind of service invocation(callback,Asynchronous,...)
- architecture is nice (you can operate on SOAP level)
the Bad:
- It is JEE 5 or JSE 6 dependent.
- there is seriously lack of documentation and examples for it, on java web sites and internet.

Spell Checking API / Open Source ?

Hello!
Who has experience with an open source spell checking java api?
I hope, you can recommend an api.
I need dictionaries for english and german language.
regards
Harald.

JTextCheck
http://linux.org.mt/projects/jtextcheck/
GSpell
http://specialist.nlm.nih.gov/nls/GSpell_web/

FLV player component. Open Source/commercial options?

I'm returning to a project I've had on hold for a bit. We're
now receiving
.flv files from our video team and we need to displaying them
on our site.
Can anyone recommend some Flash FLV player components? Open
source
preferred, but commercial or freeware would be OK too if
highly recommended.
I've looked at OSFLV but that appears to require PHP back end
scripts. Our
site is ASP.net so likely wouldn't work.
Ideally, it'd be a player that we could passe the FLV info to
via the HTML
(so that we could incorporate the embed markup automatically
via our CMS
back end).
-Darrel

On Wed, 20 Feb 2008 08:23:33 -0600, "darrel"
<[email protected]>
wrote:
>I don't have flash. Hence me not having the built-in
player.
>
>I could get flash, but we don't really do any flash
production here. All FLV
>files come to use from outside, they're then hosted on an
outside server,
>and we just need to add a player to our web site to show
them.
I beleave first of all you must decide how will you show your
videos.
Do you have FMS? Or is webserver the only you have for your
site? If
you don't have FMS and don't like to buy its license, then
the only
possible way is to use HTTP Streaming or simple progressive
download.
And you must seek for a player depending on your choice of
the video
delivery method. HTTP Streaming is a great choice if you
haven't FMS.
Though you need some scripting language/database engine at
your web
server and some custom SWF (Flash FLV Player). Standard UI
components
like FLVPlayback will not work with HTTP Streaming. Though it
is not
so dificult to create such player using any Flash MX version
>= 7.
You can find some brief description of HTTP Streaming if
you'll try to
search in Google:
http://www.google.com/search?complete=1&hl=en&q=HTTP+streaming+technology+for+video%2Faudi o+delivery
HTH!

Good site for Video Editing tools (open source)

I'm a recent convert to Mac, and I'm having a hard time finding comparable tools to what is available via open source on the Windows side. Specifially in the H.264 arena. There are a multitude of open source encoding tools for Windows. I'm sure there have to be some for Mac. Are there any good sites that list these? I'm tried versiontracker and The Mac Orchard, but I'm hoping for something more specific like VideoHelp.com
Any suggestions? I'm looking for encoding software that can do inverse telecine, import DivX/Xvid/DV, Trim video (to remove letterboxing), and encode to H.264.
Thanks!

Can't help with the video stuff, but since you're a newcomer to the Mac, see these:
Switching from Windows to Mac OS X,
Basic Tutorials on using a Mac,
MacFixIt Tutorials,
MacTips, and
Switching to the Mac: The Missing Manual, Leopard Edition.
And a link to open source software: http://sourceforge.net/ Search for *multimedia for Mac*.
Additionally, *Texas Mac Man* recommends:
Quick Assist.
Welcome to the Switch To A Mac Guides, and
A guide for switching to a Mac.

Survey about open source projects

Hello,
I'm conducting a survey about how open source projects are organized.
It's part of the www.openeo.biz community initiative which goal is to
research organizational structures of open source projects and
business models of companies related to them.
Could I kindly ask you to help us spread the word about this survey
among open source project maintainers related to Adobe.
Is there perhaps any other forum or mailing list on which it would be
appropriate to post this information ?
The survey takes about 15 min and is available at:
http://www.openeo.biz/limesurvey/index.php?sid=94442
If anyone would like to share a more detailed description about a
project it can be added directly to our knowledge base:
http://www.openeo.biz/summary/
or can just be mailed directly to
[email protected]
Thank you for your time.
Adam Walczak
www.openeo.biz
+48 604 188 992

kevinaworkman wrote:
motya770 wrote:
hi, everybody, i am noobie in java development, so i have a question.
i want to participate in some open source projects in java becouse i want to see the code and style of it etcWhat do you mean by "participate"? If you want to contribute code, you should probably wait until you aren't a "noobie" anymore. I'd suggest working through the basic tutorials.
, i've downloade source code, created a new project in eclips andd linked this code, but it didn't work. Eclipse can't find main class.If you want to learn to program, I'd say you should ditch the IDE for now and use a plain text editor and the command line.
what should i do?You could also do some bug reporting for an open source project, before actually making any changes to any code.
which project would you recommend me?I'd recommend starting a lot smaller. Work through the basic tutorials. When you have all of them working, try creating a small program of your own. Work your way up.
i think about something like jEdit.I think something more like trying out some of the programs on Project Euler (after going through the basic tutorials, of course).
PS- Working through the basic tutorials might take weeks or even months. Learning to program is an exercise in patience!Participate - just to see the manner of pragramming on this language)
i would work throught basics, now i am reading Cay S. Horstmann, Gary Cornell's book, i think these books is tutorial) am i right?
i have some minor expierence with c++, c#, qt, stl, sql, javascript, i am at 4th year of education in university,
and work now as software developer.
and decided to lean java...
i just want to download some little project and see how swing and other things work/)))
thaks

Open Source Flash Tools

Hi All,
Just wondering if anybody can recommend any Open Source Flash generation tools on the same line as Adobe's Flash Application.
Want to incorporate into ApEx apps.
Thanks.
Tony.

Here is the Flex code that displays a grid and a text box.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns="*" layout="absolute" styleName="plain" creationComplete="userRequest.send()">
   <bridge:FABridge bridgeName="flash" id="flash" xmlns:bridge="bridge.*" />
   <mx:HTTPService id="userRequest" url="dc_htmldb.EmployeeXml" useProxy="false" method="GET">
      <mx:request xmlns="">
      </mx:request>
   </mx:HTTPService>
   <mx:DataGrid id="dgUserRequest" x="0" y="30" rowCount="15" dataProvider="{userRequest.lastResult.Rowset.Row}">
      <mx:columns>
         <mx:DataGridColumn headerText="First" dataField="FIRST_NAME"/>
         <mx:DataGridColumn headerText="Last" dataField="LAST_NAME"/>
         <mx:DataGridColumn headerText="E-Mail" dataField="EMAIL" width="80"/>
         <mx:DataGridColumn headerText="Phone" dataField="PHONE_NUMBER" width="125"/>
         <mx:DataGridColumn headerText="Hire Dt" dataField="HIRE_DATE" width="75"/>
         <mx:DataGridColumn headerText="Job" dataField="JOB_ID" width="75"/>
         <mx:DataGridColumn headerText="Salary" dataField="SALARY" width="55"/>
      </mx:columns>
   </mx:DataGrid>
   <mx:HBox x="5" y="0">
      <mx:Label text="Selected ID"/>
      <mx:TextInput id="selectedempid" text="{dgUserRequest.selectedItem.EMPLOYEE_ID}" width="40"/>
   </mx:HBox>
</mx:Application>It gets it data by calling a stored procedure (EmployeeXml) via HTTP.
That procedure just runs a query and returns it as XML.
To show it on the page, you just embed the Flash player in a HTML region.
To exchange data between Flex and other HTML elements requires some javascript:
http://labs.adobe.com/wiki/index.php/Flex_Framework:FABridge
Tony - if you email me at dccase at yahoo dot com I can send you a link where you can my app running.

Open source role based framework

We have an application which is using :-
1) spring framework/j2ee code at the backend
2) while the front end is comprised of Adobe flex and action script. The app is web based.
A need of the application at the moment is for a role based authorization framework, based on which a decision can be made as to which widgets/tabs/screens should be visible to the user and which should be hidden from him.
Wanted to know
1) if somebody was willing to share some of his experiences on a similar project.
2) found and existing framework open source or otherwise helpful.
3) would recommend one architecture over the other
4) or anything else he would think might be beneficial to know.
Thanks

Most app servers have some built in container managed security (for example Tomcat Realms) which may or may not meet your requirements.

Open Source Final Cut Server

It would make sense to open source Final Cut Server instead of discontinuing it. Many depend on it and have massive asset libraries and workflows that will not be moving any time and need support. QuickTime/Darwin Streaming Server is open source and thriving. Final Cut Server should be given that chance as it still has many uses and a lot of potential in areas that Apple hasn't explored.
Apple please give back to community of loyal users and pro's around the world by open sourcing Final Cut Server and not letting it sit on the shelf like Shake collecting dust when it could be so much more!

I agree with this. We have invested too much to simply abandon our infrastructure and explore other options. Open source would be in everyone's best interest. I encourage you to visit the FCSvr feedback page and recommend this. http://www.apple.com/feedback/finalcutserver.html. Please be constructive - there has been enough temper tantrums and gripes about FCSvr being killed and the new way the FCPX works. Please be detailed about how you use FCSvr, any customization you've done, especially if they involve using the command line tools and scripting in any form. I personally have invested countless hours pouring over bash scripts, scouring the 43 "px" tables in the postgres database looking for ways to improve our setup, and writing libraries of functions to make scripting easy. I figured out how to customize our distribution to make it do what we need it to do, to serve our business and our clients. If the road ends here, was that all for nothing? FCSvr is a great product. I know that it doesn't jive with FCPX new ways of thinking. I know FCPX has range keywording and metadata capabilities. But what of a notification system? What of a transcoding server? What of subscription/responses triggering actions like archiving to tape? What about support for changing metadata with third party solutions? What about publishing the catalog to online services like MediaSilo? There are countless functions that have become part of the workflow of professional production companies. FCSvr has totally changed the way we work and think about our assets. I was just beginning to get somewhere with our producers and editors, and I really don't want to stop now. Open sourcing FCSvr would give developers the opportunity to write their own modules for FCSvr, we could see support for all kinds of functionality. It's not going to happen though if you don't tell them you need it. Send your feedback using the feedback page. Talk to the vendor you bought FCSvr from or the person who installed it in your organization and encourage them to have this discussion with the people at Apple who can make a difference. Please take action, don't just gripe and make broad stroke suggestions here on the forum. Thanks for your time.

Open Source Projects Implementing NIO

Searching around Google for multi client NIO servers has lead me to a couple of conclusions. First, there are only a few books on NIO. Second, there are quite a new open source projects that create a framework around NIO, and are designed to make using NIO a bit easier; even some designed for scalable multi client NIO servers.
So I wanted to ask about these open source projects, and see if anyone here has any information on some of them. Ideally I would like to work with one of the open source projects, but determining which are worthwhile, and which aren't by myself would take quite a while. I'm wanting to enter the world of multiplayer games, so I'm not talking about a NIO webserver or anything like that :)
There are a few criteria that are factors to me, and they include the easy of use, documentation, and scalability. A framework that is easy to use and well documented, but scales only reasonably well is equal, if not better, than one lacking in ease of use, documentation, and crazy scalability.
Thanks!
David
Edited by: ReptileKing234 on Jan 31, 2008 6:42 PM

kevinaworkman wrote:
motya770 wrote:
hi, everybody, i am noobie in java development, so i have a question.
i want to participate in some open source projects in java becouse i want to see the code and style of it etcWhat do you mean by "participate"? If you want to contribute code, you should probably wait until you aren't a "noobie" anymore. I'd suggest working through the basic tutorials.
, i've downloade source code, created a new project in eclips andd linked this code, but it didn't work. Eclipse can't find main class.If you want to learn to program, I'd say you should ditch the IDE for now and use a plain text editor and the command line.
what should i do?You could also do some bug reporting for an open source project, before actually making any changes to any code.
which project would you recommend me?I'd recommend starting a lot smaller. Work through the basic tutorials. When you have all of them working, try creating a small program of your own. Work your way up.
i think about something like jEdit.I think something more like trying out some of the programs on Project Euler (after going through the basic tutorials, of course).
PS- Working through the basic tutorials might take weeks or even months. Learning to program is an exercise in patience!Participate - just to see the manner of pragramming on this language)
i would work throught basics, now i am reading Cay S. Horstmann, Gary Cornell's book, i think these books is tutorial) am i right?
i have some minor expierence with c++, c#, qt, stl, sql, javascript, i am at 4th year of education in university,
and work now as software developer.
and decided to lean java...
i just want to download some little project and see how swing and other things work/)))
thaks

Open Source equivalent to Adobe Illustrator?

What is the best Open Source equivalent to Adobe Illustrator?
(or closest equivalent)
This may be a matter of personal preference but could anyone share their thoughts or opinions?
Thank you,

I took Inkscape for a test drive in order to compare it to Adobe Illustrator. Here are my comments I would like to share with this newsgroup. Generally and professionally, I prefer Adobe Illustrator over Inkscape because Illustrator is a more responsive program - faster during some key drawing procedures, however Inkscape should not be ignored as it is available for no cost and is very capable and sufficient as a drawing tool. I was impressed with Inkscape - except for its typesetting features, its lack of being able to use spot colours and its limited PDF export options.
I hardly touched all the Inkscape features in this review - only a few main features which seemed to work sufficiently.
This review is written for someone looking for a vector drawing program to learn and use who may not have a lot of experience with a professional drawings programs such as Adobe Illustrator and who may be looking for a no-cost alternative that is sufficiently acceptable.
Inkscape 0.46
www.inkscape.org
Review by Mike
platform: mac computer on OS 10.4
March 2009
Generally, a very capable and extremely useful program - especially considering there is no cost. Under the "Help" menu, is a link to the online manual which you can download too - but I just read that parts I needed online.
I found the info I was looking for a few days ago when I first tried the program. Initially, I couldn't find a way to convert a point from a smooth point to a corner point. I found this feature in the menu bar. When you use the "edit path my node" tool (second tool in the tool box) you can make this choice (corner or smooth point) from a row of icons along the top of the document window - very obvious but I didn't see that at first. Its a good feature to know to manipulate your shapes to exactly as you would like. With this ability, you can choose to convert your point to a corner point or a smooth point - important to being able to draw any shape you like.
You can also adjust the bezier curve angle on the fly (while you draw) (see last point [1] at the end of this review) by holding down the shift key or the control key but that would depend on how much users would want to practice this program. The main thing is, that it can be done - just like in Illustrator. Illustrator users would just have to remember a few different key stroke patterns while drawing.
Doesn't seem to be much this program can't do, except for spot colour capability. Compared to Illustrator, I would be curious to know if there was anything critical you can do in Illustrator that you cannot do in Inkscape. Typesetting in Inkscape isn't so great but generally the program is sufficient.
Here are four main points:
1. Inkscape doesn't have spot colour capability
This is probably the biggest disadvantage of Inkscape for professionals. For commercial artists, printing spot colour is a critical capability which enables such things as specifying a pantone colour to a printer. However, for web pages and CMYK artwork, Inkscape is sufficient because web page art is all RGB in colour (no spot colours are used in web page art).
2. No PDF export options.
Inkscape's PDF export features seem to be limited and do not give you many options such as compression options. That is probably the second most noted limitation of Inkscape for professional artists. There may be a work around however. If you export the drawing as postscript and open it in Adobe Acrobat Professional you could set these options here instead. But then you would need to buy Adobe Acrobat Professional - but which is a very useful program - one that is indispensable for managing pdf files quickly. "Web Capture" is one of my favourite features of Adobe Acrobat Professional - can save a website or a web page to pdf for archival purposes. Merging several PDF's into a single document is also a good feature of Adobe Acrobat Professional for general purpose file management.
3. Inkscape is slower than Illustrator. Some Inkscape features are OK but others are slower.
But that might not be a fair comparison because I am testing Inkscape on my ten-year-old 350 MHz Mac G3. But then again, I am also using Illustrator on this same G3 and Illustrator is very fast. I wonder how fast Inkscape would feel on a newer mac?
Overall, these speed issues may not be relevant because for most projects and drawing tasks Inkscape is fast enough.
The slowest feature of Inkscape I find is selecting a typeface if you are setting any type in your document. It takes too long to scroll down your selection of fonts. Could be my computer - or could be Inkscape ot something to do with the fact I have many fonts - but they are all managed by fontbook. I am not sure why selecting a type face seems to take so long to scroll through the list of fonts.
4. Inkscape struggles with type setting.
Typesetting in Inkscape is slow. The critical problem with Inkscape type is that the type in the final Inkscape document (which is natively in the .svg format) will not open in Illustrator. This is not good. I am not sure why and I may possibly be doing something wrong - but I tried this in many ways and there appears to be a problem with the way Inkscape saves type - maybe its just certain fonts (non-type-1?) - not sure. Any Inkscape documents will open in Illustrator but the type will appear in a large black box - major problem. Obviously there is a font translation problem with the way Inkscape saves blocks of type. The solution is to not expect type to work between these two programs (between Inkscape and Illustrator) - but often you don't need to transfer your files between Inkscape and Illustrator and so for these projects this may not be a problem. Another solution is at the final stage of your drawing in Inkscape, convert all the type (if there is any type)to paths ("convert to path" feature) - but this procedure is irreversible - so save a copy of your document first with the fonts not converted to outline. I am sure newer versions of Inkscape will correct this problem eventually. I think there is future hope for Inkscape on this issue.
Here are some other general points I noticed about Inkscape:
The pattern tool (good for wallpaper):
For fun, I tried the pattern tool to try and design a wallpaper pattern. Its pretty cool. You can turn any objects you draw into a wallpaper pattern.
Another way to do wallpaper is to just manually copy and paste in a repeated manner offset by the length of your object until you have enough copies to make a full piece of wallpaper - but that takes longer than simply using the pattern tool.
However, the best tool for generating patterns for wallpaper is probably this tiling feature:
tiling:
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Tiles.html
I wouldn't bother reading the whole manual - just the parts you might need to reference while working on a project. The bezier curve section in the manual is good to read:
bezier curves:
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Paths-Creating.html
As mentioned on that page, paths can be created using three ways:
1. the Freehand tool
2. the Bezier
3. the Calligraphy tool
My favourite is the bezier tool. It offers precise control.
The other tools are good too (and probably fun to use) but for precise drawing, I like the Bezier tool myself.
Other users might prefer the other drawing tools (Freehand tool or Calligraphy tool) for faster stroke creation and faster line effects.
Once you draw a shape and close it (click on the first endpoint when placing the last endpoint) (I always recommend closing a shape - but you don't have to) then you can colour the shape any colour you would like or with a shaded gradient or even make it transparent to any degree and overlay it on top of other shapes. Lots of control to do some pretty creative stuff.
I would also recommend organizing your drawing into layers. If...(continued on next post...)

Where can I find a sophisticated sample app (from open source or oracle)?

I am looking for open-source or Oracle's sample applications that uses most if not all of the features in Oracle Appserver 10.1.3. Most of existing sample applications I found under the 'sample applications' link are for older version of Oracle AS, and not compatible with 10.1.3. Other requires JDeveloper, which I don't plan on using.
Any suggestions?
thanks,
Henry

Henry, thanks for the feedback ... I have asked the product manager responsible for the JCA demo to take a look and update the sample. The best way to file the bug without having access to the db is tell us here. We try our best - though sometimes can't keep up - to monitor the forums, particluarly when we have a new release where lots of issues may need follow up like 10.1.3.
On the how tos that require editing the XML, normally that is because we don't have access to do the configuration in the application server control or the command line tooling. In general I recommend you use ASC console or the command line tooling - admin.client.jar or our ant tasks - for configuration as you are right that it is the most consistent and accurate way to configure the environment. This doc book gives a sense of what that tooling works for:
http://download-west.oracle.com/docs/cd/B25221_03/web.1013/b14432/admin.htm#sthref68
including ant tasks:
http://download-west.oracle.com/docs/cd/B25221_03/web.1013/b14431/anttasks.htm#sthref164
However, unlike the previous release of OAS where editing the XML files often had unexpected consequences on other instances in the cluster because of a central managed repository concept that the older release had, in 10.1.3 that concept is no longer there so editing the XML files generally works fine both in stand-alone and managed. Again, in general we recommend using the tooling but my guess is if you have found a how to that requires editing the XML files, I suspect the tooling doesn't support it yet.
Out of curiousity, I would be also interested in which one you found that had that - was it the JCA one again?
Mike.

TextLayout open source code undefined property debug in cs4 flash

Hello to everyone,
I have downloaded svn open source files of "textLayout framework" and set src folder as class path in cs4 flash
When i am trying to publish an example player gives me this error:
1120: Access of undefined property debug.
CONFIG::debug { assert(normalizeStart <= textLength,"damage bad length"); }
do you have an idea?
Thanks.

The intended workflow is to use a compiled TextLayout.swc in Flash Pro. When we compile the swc we give the compiler some config information to determine whether we're compiling a debug or release swc. I don't know whether that can be done from Flash Pro, so I'd recommend only putting the swc on your path, not the full source.

What's the Best Open Source DB for use with Kodo?

Hi everyone,
In terms of ease of setup and use, tools to view info in the database, and least difficulty in
running with Kodo, what is the best open source database to use? I'm use to using Oracle and
SQLPlus. I need to use an open source DB for a learning environment, and I'd like your informed
opinion.
Thanks,
David Ezzio

I have been using postgresql 7.1 with Kodo for a while with mostly positive results, and currently
have it deployed with Kodo 2.2.3. I prefer it to mysql because its feature set is a little richer,
and supports transactions natively. My experience with mysql (without jdo - I haven't tried it with)
is good, but there were little things missing in mysql 3.x, e.g. the ability do do a join in a
DELETE statement.
BTW, there are some severe problems somewhere in the 2.2.4 release with postgresql if you intend to
eventually deploy on it. It also apparently has some problems invoking postgresql's indices, making
it a little less than optimal. But as a learning environment, it's what I'd recommend.
-Mike
Marc Prud'hommeaux wrote:
David-
Here is the rundown of the databases I have experience with:
MySQL: Fairly simple to install (especially if you run Debian Linux), but
configuration, especially adding users, can be a pain. A separate open
source project called "mysql-navigator" makes it fairly easy to do
simple queries, inserts, etc. In most of my tests it outperforms
PostgreSQL, but your mileage will vary. It has a sane CLI that supports
modern features like line history, etc (unlike the horrific SQLPlus).
PostgreSQL: People often say that it is a more "academically
correct" database than MySQL. I've also found it to be quite a bit
easier to set up. Their GUI (called "pgaccess") is simplistic, but does
most things you need. Has a CLI similiar to MySQL's.
HypersonicSQL: By far the easiest to set up (just drop the jar in your
CLASSPATH), but is java only, can be rather slow, and has no GUI tools
available that I know of (except various free vanilla-JDBC GUI tools).
We feel that Kodo works quite well with all these DBs. The MySQL JDBC
driver seems a bit less buggy than Postgres', but their transaction
support is very recent and not very well tested. If I had to pick one or
the other, I would probably go with MySQL.
David Ezzio <[email protected]> wrote:
Hi everyone,
In terms of ease of setup and use, tools to view info in the database, and least difficulty in
running with Kodo, what is the best open source database to use? I'm use to using Oracle and
SQLPlus. I need to use an open source DB for a learning environment, and I'd like your informed
opinion.
Thanks,
David Ezzio--
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com
Kodo Java Data Objects Full featured JDO: eliminate the SQL from your code--
Mike Bridge

Help needed regarding some open source and good media streaming server

Hi
I am searching for some open source and java based media streaming server which can facilitate live video streaming. Can anyone please suggest me some good streaming server.
Thank you.

Some observations:
(1) The use of the Configuration.createRootApplicationModule() API is recommended only for console programs, not web applications, but it should work ok as long as your use of the appliation module is completely stateless (which from the code it looks like it is since you release the AM back to the pool on each request.)
(2) You mention "Stateful" mode, but Configuration.createRootApplicationModule() only supports stateless mode, so you are effectively using Stateless mode.
(3) You are passing true as the 2nd argument to Configuration.releaseRootApplicationModule() which means you are asking to immediately remove the application module instance from the pool. This will hurt the scalability of your application since each request will need to be served by creating a brand new instance of the application module.
(4) You are explicitly calling disconnect(). This is not necessary.
I would recommend:
(1) Changing your 2nd argument to releaseRootApplicationModule() to false
(2) Remove the explicit call to disconnect()
(3) Given your usage pattern, I'd recommend calling viewobject.setForwardOnly(true) before calling viewobject.executeQuery() and iterating over the results. This will avoid any caching of the fetched view object results. Also ensure you've read section "27.2 Tuning Your View Objects for Best Performance" of the ADF Developer's Guide for Forms/4GL Developers guide on the ADF Learning Center at http://www.oracle.com/technology/products/adf/learnadf.html for more performance tips
For example, if you are fetching 65 rows, make sure the fetch size of this view object is at least 66 so you can retried all the rows in one DB roundtrip.

Open source LMS/LCMS recommendations

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