EAServer App using Powerbuilder
Hi, I am a PB client/server developer having a good understanding of client/server design issues. But when it comes to WEB app, I am not having a good understanding of underlining concepts. like How people do authentication in WEB(in Client server we do this by making connection to Database, but in web app this does not looks practical. A web app should use some chched conections to databasewhich every user connection should use) I would really appreciate if some one could guide me where I could find a sample application (kind of getting started using EA Server and PB not Java) in which user has to be authenticated and do some updates to database. I looked at Powerobject.com but could not find what I was looking for. I read the book Jaguar development with PB 7 but this also did not help clear the concepts. Thanks, Saiyed
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Saiyed
6/11/2002 1:26:42 PM
sybase.easerver.powerbuilder
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Saiyed, Take a look at the Security Administration and Programming Guide in the EAS 4.1.1 documentation which gives a good overview of the concepts. In general, you will want to do user Authentication and Authorization at the web application level and/or at the application server level. Once you have done that, you may want to consider no longer re-authenticating and re-authorizing the user at the DB level. If you move the security from the DB layer into the middle tier, you may choose to use a generic userid on your DB connection cache as you indicated. Security can be pretty complex and there are lots of options and you will have to make design decisions that are appropriate for your application. HTH, Joe Saiyed wrote in news:4E5AFDB330822BF80049DAF985256BD5.0049DB0885256BD5@webforums: > Hi, > > I am a PB client/server developer having a good understanding of > client/server design issues. > But when it comes to WEB app, I am not having a good understanding of > underlining concepts. > like How people do authentication in WEB(in Client server we do this > by making connection to Database, but in web app this does not looks > practical. A web app should use some chched conections to > databasewhich every user connection should use) > > > I would really appreciate if some one could guide me where I could > find a sample application (kind of getting started using EA Server and > PB not Java) in which user has to be authenticated and do some updates > to database. I looked at Powerobject.com but could not find what I > was looking for. I read the book Jaguar development with PB 7 but this > also did not help clear the concepts. > > Thanks, > Saiyed > >
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Joe
6/11/2002 1:38:38 PM
In article <4E5AFDB330822BF80049DAF985256BD5.0049DB0885256BD5
@webforums>, Saiyed says...
> Hi,
>
> I am a PB client/server developer having a good understanding of
> client/server design issues.
> But when it comes to WEB app, I am not having a good understanding of
> underlining concepts.
> like How people do authentication in WEB(in Client server we do this by
Saiyed
I think you have a start on some of the issues that you will run into.
However, there are a lot of things to consider when "moving" to a web
application. I would highly recommend doing a lot of reading - check
out the Sun web site - and hiring some "experts" to assist in your
effort. You just need to get a good understanding of the issues and how
to handle them - just so you don't spin your wheels on the basics.
For example, you could use the container for your authentication or you
could continue to do the authentication in the application. There are
pros and cons of both, so you will need to explore the options.
I know you wanted specifics but the concept is too open for me to narrow
it down without knowing more about your app.
Mark
--
Mark Pfeifer[TeamSybase] Corporate Technology Partners, Inc.
mpfeifer at sprynet.com Emerging Technology Solutions
www.ctpartners.com
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Mark
6/11/2002 5:29:44 PM
Hi Mark, Joe, Thanks for your suggestions. As I mentioned earlier I do not have a very good understaning of web architecture and I am want to do it right rather than reinventing the wheel in many iterations. Our application is a fairly big size application having around 3000 to 4000 POwerbuilder objects in client server architecture. Lot of functionality in out application really make more sense to be made web enabled. But my company is not ready to send us on any training as they do not realize a need for this. But I know it will come soon. What I want to do is to build a sample application ( a very simple one) to face the issues in web application developements and learn from it before we eventually start work on business application. Does sybase provide a sample application using EAserver and PB? Does any one else? I really appreciate you helping me out. Thanks, Saiyed
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SAIYED
6/12/2002 12:45:45 PM
This is one of the most basic of all needs for PB client/server programmers. I have seen it asked numerous times in this forum and in my mind is absolutely essential for developers, but as important is that it is absolutely essential for EAServer/Sybase. If we can't figure out how to do move existing apps to EAServer or create new ones, or whatever, EAServer is in my opinion not going to make it. Not one simple app. either, many apps. simple and advanced and with explanations/help files. PB has had the examples and other apps. for as long as I can remember and I know they are very important to developers. SYBASE - you need to do this!!!!
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DeuceRider
6/12/2002 4:21:50 PM
Saiyed, We have developed a sample application on one of our current projects, but it is unfortunately "government owned" at this point. If you work for a US Government agency, I could work with you to get you a copy. If not, I recommend that you look into one of the existing frameworks that are available. Most of them provide samples using their frameworks. If you are serious about learning the PB to EAS migration strategies, I echo what mark said and suggest you invest in some training and hire some expertise to help you up the learning curve. You can contact your local Sybase Professional Services representatives or one of our many partners. Joe SAIYED wrote in news:E60CDB6C6420A87600461B6985256BD6.00667FA185256BD5@webforums: > Hi Mark, Joe, > Thanks for your suggestions. > As I mentioned earlier I do not have a very good understaning of web > architecture and I am want to do it right rather than reinventing the > wheel in many iterations. > > Our application is a fairly big size application having around 3000 to > 4000 POwerbuilder objects in client server architecture. > > Lot of functionality in out application really make more sense to be > made web enabled. But my company is not ready to send us on any > training as they do not realize a need for this. But I know it will > come soon. > > What I want to do is to build a sample application ( a very simple > one) to face the issues in web application developements and learn > from it before we eventually start work on business application. > > Does sybase provide a sample application using EAserver and PB? Does > any one else? > I really appreciate you helping me out. > Thanks, > Saiyed
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Joe
6/14/2002 1:46:09 AM
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