Caching data in Omni Portlets

If i insert new data into my database it takes a while before my omni portlet picks it up(even if i refresh the portlet), i have turned off page level caching, but this doesnt seem to solve the problem - is there any way to fix this?
Also occasionaly my portlet errors with : "Error in executing Query : [Io exception: Connection reset by peer: socket write error]" but the database is still up. Any ideas?
Thanks

The answer depends. You have to ask and answer these questions...
how much data needs to be cached per session
must the session data remain in existence after the session is closes
what are your response time requirements
what are the maximum number of users that you will need to support
Some options are
- Statefull session beans
- Cookies
- Stuff the data into the http session object
- Caching session information in a singleton (more complicated in a cluster)
All of these options are good ones. Apply the write one to your specific
instance.
Good luck
"Sandhya S Suku" <[email protected]> wrote in message
news:[email protected]..
Hi,
Is it a good idea to cache user dependent data in stateful session
beans because of repeated hits to the same data?
Is there a better way to do this?
Thanks
Sandhya

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When we try to use portal.wwctx_api.get_user inside of omni portlet select statement fallowing error occurs.
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Thanks a lot

hello
i think you cannot use the portal built-in packages inside omni portlets. Omni portlets is designed to connect to other data source (not only oracle) and Portal API might not be available at these data sources. Therefore, you should not be using these Packages at all!. i tried very hard, but to no avail.. Omni portlet has its own repository!! if you cannot pass the infomration as a parameter, then find a different approach
Ammar Sajdi
Amman - Jordan
oracle consultant

Filter omni portlet output data according to portal user

We have created an omniportlet that connects to a database, and retrives some values into a defined HTML layout.
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When we try to use portal.wwctx_api.get_user inside of omni portlet select statement fallowing error occurs.
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Hello,
In the Developer Guide ,(http://download-west.oracle.com/docs/cd/B14099_10/portal.1012/b14134/pdg_matrix.htm#CEGFBJEC)
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Thanks

We are trying to do a JCA Adapter and are running into the same type of questions as you. Clearly, no one is watching this topic. Have you found a reference application to test the RA against?
Please feel free to contact me at [email protected]

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Thank you for taking a chance to look at this and help.
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hello ,
thank you for your quick response.
yes i am using the OmniPortlet Web Page data source.
version of OmniPortlet/PDK 90262
application server version:9.0.2.4
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what do i miss exactly. could you pls look at the page i am trying to clip.
http://finans.milliyet.com.tr
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Report Using A Stored Procedure Is Caching Data

Post Author: springerc69
CA Forum: Data Connectivity and SQL
I converted a report from a view that worked fine to a stored procedure to try and improve the performance of the report, but when I publish the report it seems to cache the data. When you change the parameters you use to call the report or simply run the report again with the original parameters the report doesn't run the sproc and just shows the cached data from the original request. If I right click on the report and select refresh (web based crystal report), it prompts for the parameters. I just close out the prompt window, report window and click on the link for the report again it returns the correct results based on the new parameters or a refresh based on the original parameters. I've checked the cache time setting and set it to 0, and if you close the Internet Explorer window that originally called the report, open IE back up and request the report it will return the appropriate data. I have also verify that the report is not setup to save data with report. This is on Crystal XI Server.

Post Author: synapsevampire
CA Forum: Data Connectivity and SQL
Which viewer are you using?
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Hi,
I have a web application which have a huge amount of data instead of storing the data in Http Session are storing it in coherence. Now multiple groups of users can use or update the same data in coherence. There are 100's of groups with several thousand users in each group. How do I prevent multiple users from updating the cache data. Here is the scenario. User logs-in checks in coherence if the data there and gets it from coherence and displays it on the ui if not get it from backend i.e. mainframe systems and store it in coherence before displaying it on the screen. Now some other user at the same time can also perform the same function and if don't find the data in coherence can get it from backend and start saving it in coherence while the other user is also in the process of saving or updating. How do I prevent this in coherence. As have to use the same key when storing in coherence because the same data is shared across users and don't want to keep multiple copies of the same data. Is there something coherence provides out-of-the-box or what is best approach to handle this scenario.
Thanks

Hi,
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Problem pl/sql function as web service in OAS as omni portlet

Dear All,
I try to use pl/sql function from package as web service in OAS as omni portlet. This function returning, for example, the result of searching as number of rows (Id, name).
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Dear All,
I try to use pl/sql function from package as web service in OAS as omni portlet. This function returning, for example, the result of searching as number of rows (Id, name).
As I have understood, OAS omni portlets understands only J2EE 1.3(oracle) web service (which is chosen on the first step of the making the service from PL/SQL). Since in the event of choice J2EE 1.3(JAX-PRC) OAS can not analyse the answer SOAP on elements.
I try return types:
1. xml. Kind of <rowset><row><id>1</id><name>John</name></row><rowset>.
2. ref cursor can`t use
3. varray of records can`t use.
At the best, answer recognizes as line, rather then as array element.
Thank you in advance for answer

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Hi,
I've created a webcenter page with a omni portlet on it. Configuring this portlet for the first time is OK. However customizing this same portlet later on will always give me the portlet unavailable error, together with this stacktrace.
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Adding adf security does not help.
Any suggestions are greatly appreciated. Note that I have the same problem with different portlets, so it has nothing to do with this specific OMNI portlet I guess.
Jaco Verheul

The timing... :) having the same issue. Is there any resolution to this or should I also open an SR to get the patch/fix?
Also, to help others searching for this error...
Portlet unavailable when trying to click customize for an OmniPortlet.
Portlet unavailable


Steve
Message was edited by:
ssaxer

Maximum Fields in Omni Portlet?

We have recently installed PDK Release 2 v9.0.2.6.2 and are busy adding Omni Portlets to our Portals. We are really pleased with the majority of functions so far but have now hit a problem.
I seem unable to create a report that displays more than 5 columns. I have tried various different SQL statements that all return more than 5 rows, but I only seem to be able to display 5 columns.
Any ideas?
Thanks,
Paul.

To clarify this issue I have provided a step by step example of my problem below
1)Create blank page
2)Add new omni portlet
3)Select database connection to IASDB or any other valid connection
3)Define omni portlet with the following SQL:
SELECT 'Text 1' column1,
'Text 2' column2,
'Text 3' column3,
'Text 4' column4,
'Text 5' column5,
'Text 6' column6,
'Text 7' column7
FROM dual
4)Click on finish
5)Omni Portlet only displays columns 1-5
6)Edit defaults of omni portlet and on click on layout tab
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Paul.

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HI,
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Jun 30, 2007 1:16:08 PM - Cache notification from Integration Directory received successfully
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<?xml version="1.0" encoding="utf-8"?>
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dushyant.

thanks,
but i have adepter type XI
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see 4.5 > 3 and 4 topic and 4.6 > 3,4,5
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f027dde5-e16e-2910-97a4-f231046429f2
now what to do?
dushyant,

In which table is the Live cache data stored?

Hi experts,
I am new APO .Can anyone let me know in which database table will the Live cache data be stored?
Thanks in advance
regards
Ashwin.

Hello Ashwin,
the idea of the liveCache is to haev data permanently and quickly available without having to read/write from/to database. Therefore, the liveCache is <b>NOT</b> a physical database, it is a program in C++ that <i>simulates</i> a database and holds the data in the memory.
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Regards,
Klaus

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