MAintain session across multiple DB Adapters.

Hi,
I am using a BPEL process which has multiple DB Adapters.
As far as I understand each DB Adapter call from BPEL is a different session.
Is there any way to maintain a same session across multiple DB Adapter calls i.e to make multiple DB calls in the same session?
thanks,
CD

Yes this is supported.
You'll have to take a look at the support for XA (distributed transactions).
See this thread for some good links to other info.
Re: DB Rollback Questions for 10.1.3.1 and 10.1.3.3

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Maintaining session across multiple browser windows and page refreshes

Hi there,
We're currently developing a Flex application with a couple of session-related requirements that we're not sure how to solve. Before we jump in and maybe go about things in the wrong way, I thought I'd post and see if anyone here knows of some elegant solutions!
Currently, when our Flex app starts the user is presented with a log-in screen which authenticates the user against our server. Client-server communication is done through BlazeDS.
Our first requirement is the ability to open a new browser window from Actionscript - this window will load a pdf document. The servlet that serves this pdf should deny the request if the user is not already logged in. The only way we can see to do this so far is to open the pdf url using navigateToUrl() with the '_blank' target, passing a jsessionid token as a url parameter. Is there a better way to preserve session state when opening a new window?
The second requirement is to preserve some application and session across browser refreshes. Our Flex app has several screens that the user can tab between. If the user hits F5 or the refresh button in their browser, we'd like the app to return to the same screen after the refresh. I've been looking into using BrowserManager to add a fragment such as #screen=2 to the url, but of course we only want the app to display screen 2 if the user has already authenticated with the server. Is there a way to reuse the user's existing session credentials after a page refresh?
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We use javascript to pass values between a 'data look up' window and the originating Servlet. If this is of any use, I can send you some examples.

Maintaining session across multiple browsers

Hello All,
We have an application that runs using Apache Struts. One of the requirements is to pop-up a "data look up" window, i.e. a new browser window. The problem is, when I start this window any communication between this new window and server happens on a brand new session. I would like to maintain the same session as the parent window. Any ideas?

We use javascript to pass values between a 'data look up' window and the originating Servlet. If this is of any use, I can send you some examples.

Maintaining Transaction Across Multiple JSP Pages

          Hi,
          I have a multi page Registration (3 steps). On each step data submited is taken
          to the database via an EJB component (Session Bean). How do I maintain a transaction
          across these JSP pages so that the data in the database is consistent. If a there
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          How do I maintain transaction across multiple pages.
          Regards
          -MohanRaj


It will take from several minutes to a long time for a user to complete a multiple page registration process. Do you really have enough database connections that each concurrent user can hold on to one?
Usually you cannot open more than 50-200 connections to a database at any given time.
Remember that some users will abandon the registration process. Can you afford that their sessions holds a db conenction until the session times out?
Consider changing your datamodel so you can run and commit a transaction at the end of processing the form data from a page. Immediately after the commit give the db connection back to the pool inside the app. server.
It can be as simple as having a column in the database of type enum, with a set of values that shows how far in the registration process the registration has procesed.
BTW. if you absolutely have to hold on to the db connection, you can stuff it into a session scoped attribute and it will be available on all pages.

Share http session across multiple EARs

I am curious to know the following:-
--> is it possible to share http session across multiple EARs running on same Weblogic application server.
i.e weblogic server/Jboss
--> is it possible to share http session across multiple EARs running on different Weblogic application server.
i.e weblogic server/Jboss
Please share the steps/way to acheive the same.

What are you trying to achieve / accomplish by splitting it up?
e.g. Clean Build in workshop will be faster for multiple EAR's , but unless you have all your application level libraries as shared libraries you might increase your runtime footprint. or you might want independent deploy/redeploy for your apps etc.
If however you need the session to be shared , that these aren't really independent web-applications and shouldn't be separate ear's. In most cases though you dont actually need the session as shared (e.g. a user's data is fetched from the database , you dont really need the session shared, you need a single shared sign on). So when you say is the session shared, what is the data that you need shared? should it be in the session in the first place?
And finally are these webapp's really independent (functionally ) or not?
Edited by: deepshet on Oct 13, 2009 2:09 PM

Maintain session in Multiple soap calls

Hi Experts,
We have an requirement which runs 2 synchronous calls.
1st synchronous cal is for validating user credentials and
2nd synchronous call (for successful log in) for uploading data in R/3 system.
The main task is to maintain session(ex: time 15 mins) .
1st synchronous call looks like Mobile Application (soap sender)<--->PI<----->(Soap receiver)Active Directory.
2nd synchronous call looks like Mobile Application (Soap sender)<--->PI<----->(Proxy)R/3 system.
can you pls let me know how can I achieve this requirement and
how to maintain session ID, session (is it in PI or in third party) and from where to maintain session.
Thanks in Adv..

I am calling multiple web service apis from my bpel process on the same link. The Web services are written such that I always have to call a "login" api first which creates a context that's maintained throughout the session. Thus subsequent ws calls have to be made in the same session because all the other web service apis require the context to be present.
You can think of this as a stateful SessionBean (sort of).
The question is does bpel support this?

How to share a session across multiple jws?

Hi!
I have this problem.
I'm looking for a way to have shared sessions, available across multiple JWS with WLW 8.1
I try to get a session with this code:
WebServiceContext wsContext = WebServiceContext.currentContext(); WebServiceSession session = (WebServiceSession)wsContext.getSession();
but it throws COntextNotFoundException....
I added the session descriptor in weblogic.xml to set the param CookiesEnabled to true, because I read that using this code works but requires that the client support cookies to keep the HttpSession object around.
But it's not works!
How can I get to HTTP session from a JWS?
And....it's possible to share a session accross multiple JWS?
Thanks a lot!

You may be interested (& probably discouraged at the end) in this discussion http://forum.java.sun.com/thread.jspa?threadID=619170
cheers,
ram.

Maintaining Sessions through Multiple Servlets and Contexts

Hi,
I have a webapplication that works like this:
* User connects to a login servlet on HTTPS
* Users information is authenticated on HTTPS
* An object is stored in the session for other servlets to validate the users access
* Authenticated users are forwarded to an HTTP page where the session is used to make sure they were granted access
My problem is this....Since I create the session in an HTTPS context, when I am in the HTTP context, I am unable to access the session and constantly get NULL. Is there any way that I can access the session from an HTTP context?

What you can do is, just login using HTTPS and switch over to HTTP
and then store data in session.That is true, but what I want in the session is basically a flag on whether or not the user was granted access. I would much rather set all that up on the secure line, and then just access it from the unsecure ones...
For example, you are creating session using the
http://testdev:port/index.jsp page.
If access the same page(with hostname)
http://10.300.20.18:8080/index.jsp, you can't get the session even
though both are same web server and same web application. Because the
browser treats it different sessionI think if you use my above solution with the explicit passing of the jsessionid, you can move from one domain to another and still maintain session. Not positive on that though...

Sticky sessions across multiple content rules

Hi,
If a client PC initiates two requests which match different content rules on a CSS (first request http port 80 to CSS VIP downloads a small application. This application then sends a second request to the VIP, on tcp port 8085) can sticky rules be configured on the CSS content rules, so that they hit the same destination server, given that both content rules contain the same services, and hence be considered part of the same session?
Thanks

there is no sitcky accros content rules option on the CSS.
But there are solutions to this problem.
First, are you doing anything special with your HTTP content rule ? Like cookies or url inspection ?
If not, you can group the 2 content rules into a single one. You will have 1 Layer3 rule instead of 2 Layer 4 rules.
If you have L5-7 rules [http inspection], the previous solution is not possible.
You will need to maintain 2 rules.
You could then use a 'balance srcip' balancing method on both rules.
This algorithm is deterministic.
The same client will always go to the same server.
Hope this helps.
Regards,
Gilles.
Thanks for rating.

Maintaining sync across multiple audio tracks

In the timeline I have a single video track with some sync images and some B-roll images that float against the soundtracks. I have 8 audio tracks, some in sync with different video clips some not. I've trimmed one B-roll video clip and deleted a portion of it.
How do I adjust the 8 different audio tracks so they don't lose their sync relationship with the video timeline as a whole?
Used to be when cutting motion picture film multitracks we could delete an equal amount of fill from each track at different points for each so the overall sync stays the same.
But slug doesn't seem the same as fill--you can't mark a portion of slug in the timeline and delete it.
What I've figured out is to measure the timecode length of my deleted portion of a clip, and to advance each track along the timeline by that amount by selecting all audio tracks forward and entering the timecode. I guess if you inserted a B-roll clip you could do the reverse.
This seems to work but there has got to be an easier way. Or isn't there?
Doing these kinds of edits would seem to be standard for all kinds of docs and narratives but I can't find anything in the documentation except how to delete the same portions of tracks at the same edit points across all tracks.
Thanks . . .
Robert

It's not clear to me exactly what you're trying say, but that's probably because didn't go to school for this... I'm pretty sure I know how to cut multiple audio and video tracks because I've been doing it since FCP3. No matter how you express it, the facts remain:
You can cut with impunity if you go "old school" and unlink all the clips except the stereo pairs.
You can create and cut slugs to fill spaces.
You can mark clips to assist the sync process.
What I usually do is find a good series of sync points and mark the clips, then de-link. From there I can fung shui the clips to my liking and add slugs to fill voids and prevent unintentional movement.
Automatic? no. Difficult: no, not if you know your tools.
ps: I also drive a manual shift car and navigate with a printed map... it just works.

Problems with counter in renaming interface not maintaining consistency across multiple libraries

Happy New Year, all.
We have a problem in Aperture that I was curious if others had, and I'm hoping somebody has figured out a workaround they will share with me. Originally, we used Aperture and it had one huge library for our different types of photography. We had to change away from that setup because if there was a problem it would take ages to troubleshoot a ~500GB library and perform actions like rebuilding the library. We didn't want to do this, but splitting into six libraries has improved the speed in general and has made rebuilding smaller individual libraries quicker.
We shoot a lot of photos and want each photo to have a unique number (along with a custom name). We set up a rename option in Aperture that has "Custom Name_Counter" and set counter to be six digits. The problem this seemed to create is that the counter in the rename function doesn't produce a unique number consistently across libraries. If I'm in library A, and I rename a batch of files, the counter will go up and remember its last number as long as I stay in Library A. The minute I switch to Library B, the number is at where it was the last time I used Library B. This indicates to me that the preferences travel with the library.
Does anybody know a way that I can have a global preferences file, rather than a library preferences file? It seems it maybe used to be this way, but one of the version 3 upgrades forced me to delete a preferences file for the Facebook bug a couple of version 3 subversions ago.
On a different note, another problem with renaming is that it is so slow. Renaming master files for even 100 or so files takes minutes. Does anybody else have this happen? Sometimes it's faster, but I haven't been able to figure out a pattern to this.
I've submitted feature requests for revamping the renaming interface for Aperture for at least a couple of years. It never seems to improve. iView Media Pro, a program I used six years ago, had a great renaming setup and I wish Aperture
Maybe it's time to reinstall Aperture. I bought it on disc, so it's not through the App store. Does anybody have experience reinstalling? I would, of course, like to keep keywords and other preferences.

hallerphoto wrote:
Machine is a Mac Pro dual quad-core 2.16 GHz.
I am unaware of a 2.16 GHz Mac Pro tower. Are you referring to a Macbook Pro or to an iMac? Or is it a configuration I am just unaware of?
My concern is that it seems that you may be making major workflow compromises that might be better dealt with by hardware changes as feasible. E.g. most 2.16 GHz Mac CPUs are about 1/6 as strong as a top Mac Pro today or about 1/4 as strong as today's Macbook Pros, and that has huge implications on Aperture performance.
Also, graphics processors of the 2.16 GHz era were ridiculously weak compared to modern Macs. Aperture has historically performed best with strong GPUs (e.g. the strongest G5 towers would not run Aperture without a GPU upgrade). If you stay with the existing box a GPU upgrade may (if feasible) be in order.
You did not mention RAM, which has defining impact on Aperture performance.
Even if no hardware upgrades are made, it is useful to know what hardware performance bottlenecks may exist. So some questions:
• Which Mac(s), exactly?
• Which OS version and which Aperture version?
• How much RAM is on board?
• If a Mac Pro, which GPU card is in use?
• What mass storage (hard drives and SSDs), how connected and how full?
Thanks.
-Allen

Maintain session across subdomains

Hey all
I am working on a website that utilizes session data. The problem is that session data does not seem to be shared over subdomains. For example, my website
is available at.
http://mysite.com
and
http://www.mysite.com
the DNS points to the exact same place, they are the same website. But if you login on one, your session information isn't available on the other. For now as a workaround I just added a redirect in my application.cfm that says if you arn't on the www version, go to it but that seems rather hackish. Am I missing something? Is there an easy way to say a persons session is valid for the domain and all subdomains?

Not the answer to your question, but SEO best practices say you should pick one or the other (with or
without WWW) and permanently redirect the one you didn't pick to the other at the web server (Apache/IIS) level. Search engines will pentalize you if
you don't because they see http://mysite.com/index.cfm and http://www.mysite.com/index.cfm as two different pages.

Maintaining Transactions Across JSP Pages

Hi,
I have a multi page Registration (3 steps). On each step data submitted is taken
to the database via an EJB component (Session Bean). How do I maintain a transaction
across these JSP pages (i.e. either in the EJB or in the jsp) so that the data
in the database is consistent? So if there is a problem in the 3rd step the data
submitted in the first two steps should be rolled back.
Can I use a statefull session beans, which will maintain a database connection
created during the first step, so that I can use the same connection for steps
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transaction and insert the first part of the data, then this connection will be
maintained by the statefull session and used for steps 2 & 3. At the end I will
commit the transaction. Will this work?
How do I maintain transaction across multiple pages? Is there is any standards
for this scenario where the transaction is maintained across multiple pages. I
cannot carry data across the jsp pages because of the complex data collected.
Any help appreciated.
Regards
-MohanRaj

You can not and should not do it the way that you are proposing. Keeping a transaction
open across any interaction with the user is a big mistake. Transactions are scarce
resources. They need to be short. You will need to collect the data from the three
pages in the servlet itself. You can use the HTTPSession, or hidden fields in
the forms. Only after all of the data is collected should you begin a transaction
and update the database. Alternatively, you could store the partial data in a
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Sharing static files across multiple WAR files in a single EAR

Is there also a way to share the Session across multiple WARs in the
same EAR ??
TIA
Nikhil.
Vinod Mehra wrote:
Yes, we have Virtual Directories for this in 7.0.
http://edocs.bea.com/wls/docs70/webapp/weblogic_xml.html#1031951
--Vinod.
"Sam Smith" <[email protected]> wrote in message
news:3d3f47cf$[email protected]..
Hi,
I have multiple web apps to be deployed to an intranet. I need to have acommon
look and feel for these multiple webapps.
I could place the webapps in a single ear file or deploy them without aear file.
I wanted to know if there is any standard way to include static files likeimages,
javascripts and css files (for a common look and feel) across multiple warfiles.
Right now I am planning to keep a war file which just contains all thestatic
files and point all the jsp pages in the other apps to the static files inthis
common app. Is there a better way to go about this.
Thanks,
Sam

Session state variables across multiple ApEx applications

We have a suite of loosely integrate ApEx applications that all share a common authentication scheme. When you first log in we attempt to load a series of session state variables with temporary data to streamline various logging and authentication related activities for the life of the session.
However, these session variables seem to disappear when you move from one application to another, so they are not truly tied to just the "session" which carries over across all applications, but the application from which the session state is set.
What is the suggested way, keeping in mind that the data being held may have security related context, to preserve values during a session, but regardless of which ApEx application you are in.
The method we are using to share the authentication is using a common "Cookie Name" from a common subscribed authentication scheme as suggested elsewhere on this site and seems to work very well outside of this specific issue.
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Apologies for the delay getting back on this.
My use of the word "disappear" was probably misleading. They were not visible from the second application. When setting "Session State" I was under the impression that it was setting it for the authenticated session, not for the specific application. (I am referring to the: apex_util.set/get_session_state).
Your solution will work fine, as long as I know which application the user last authenticated against. However, it could be one of over 30 (and growing) different applications which would require me writing a program to go through every "p_flow" to try and find a valid value every time I need to reference the field.
It would be really beneficial if you could store true Session variables which stay alive for the life of the authenticated session and is available to anything authenticated against that session id. This would streamline alot of cross-application program development.
The "get/set_session_state" is a misleading as it is not a Session value, but an Application value. The Session exists across multiple applications, while this procedure does not.
Thanks,
Barney

MAintain session across multiple DB Adapters.

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