Cache Problem-JSP

Hi All,
I am developing a web application using JSP and Flash
In Flash i had given links for various countries
Once the user clicked the link session for language
and country is set..
since v have only five links i call separate jsp file for
each click
this works fine for some time
but some time it won't
i checked each time..
And found the problem is b'ze of tht history in IE[cache]
Is there any way to clear tht cache using JSP or by any way thru coding
I used out.clear(),out.clearBuffer() and all it won't worked
out
Hope number of ppls r there to help
expecting a quick reply
make a mail to me at
[email protected]
Friendly
Arul

Set the following scriptlet on every page...
<%
response.setHeader("Cache","NoClear");
response.setHeader("Pragma","NoClear");
response.setDateHeader("Expires",0);
%>

Similar Messages

I am facing a caching problem in the Web-Application that I've developed us

Dear Friends,
I am facing a caching problem in the Web-Application that I've developed using Java/JSP/Servlet.
Problem Description: In this application when a hyperlink is clicked it is supposed to go the Handling Servlet and then servlet will fetch the data (using DAO layer) and will store in the session. After this the servlet will forward the request to the view JSP to present the data. The JSP access the object stored in the session and displays the data.
However, when the link is clicked second time then the request is not received by our servlet and the cached(prev data) page is shown. If we refresh the page then request come to the servlet and we get correct data. But as you will also agree that we don't want the users to refresh the page again and again to get the updated data.
We've included these lines in JSPs also but it does no good:
<%
response.setHeader("Expires", "0");
response.setHeader("Cache-Control" ,"no-cache, must-revalidate");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control","no-store");
%>
Request you to please give a solution for the same.
Thanks & Regards,
Mohan

However, when the link is clicked second time then the request is not received by our servlet Impossible mate.. can you show your code. You sure there are no javascript errors ?
Why dont you just remove your object from the session after displaying the data from it and see if your page "automatically" hits the servlet when the link is clicked.
cheers..
S

Possible caching problem

I have a Pag1.jsp with 2 buttons, a dropdown with a button, as well as a datatable with an action link. Everthing works fine; the buttons, action links and dropdown. The problem arises with the actionLink; on the remote jsp pages the user can hit a button which takes him back to page 1.jsp. HOWEVER, IF HE USES THE BROWSER'S BACK ARROW HE GOES BACK TO PAGE1.JSP, BUT NOW THE 2 BUTTONs NO LONGER DIRECT PROPERLY, BUT SEND HIM TO THE LAST PAGE THE ACTIONLINK DIRECTED HIM TO. This problem is only caused by the browser back arrow and is removed by going to page1.jsp and hitting the refresh button...Is this a caching problem and what can I do about? Thanks for taking the time to read this.

Hi ,
I tried reproducing your problem with information provided by you , but was not able to reproduce. I was successful in bringing up the correct JSP pages on the click of buttons. The browsers back button takes me to the previous visited page and the button ,Action Links redirect me to the right JSP pages.
Regards,
Creator Team.

Control client cache for JSP

There are many threads on the web about how to force a reload rather than pulling content from cache. My problem is the opposite. I am trying to get good cache control for a jsp application that has relatively static contents. My goal is to serve up pages with the following characteristics:
For client calls:
If there is no version in cache, the jsp builds a new version and sets the response date header "Expires" to 5 days later.
If within the Expires date, have the client just use the cached version: no validation or roundtripping.
If after the Expires date, roundtrip: have the jsp return 303 (SC_NOT_MODIFIED) if no content changed. Also, ideally, also reset the Exipres date to an additional 5 days.
Otherwise, recreate the response and start over...
I am experiencing different behaviors with different browsers, although none act as I was hoping.
When there is no relevant page in cache, all of the browsers accept a new version (and I think that they all put it in cache). All browsers reload the page using the reload button.
If there is a relevant page in cache and it has not expired:
1. FireFox 3 seems to roundtrip, but then use the version in cache.
2. IE 7 seems to always use the cache version without checking the server
3. Google Chrome seems to always roundtrip and reload.
I tried several variations including setting/not setting the Last-Modified date header and setting/not Cache-Control: no-control header (to force validation).
Neither Last-Modified nor no-contro: NO CHANGE FROM ABOVE;
Last-Modified set, no-control not specified: NO CHANGE
Last-Modified not set, Cache-Control set to no-control to force validation.
The main problem here is that I was unable to get a value for the request header "Last-Modifier" so that my jsp could not set the 303 return, therefore all browsers roundtrip and reload.
SO...
1. What do I need to do to get all browsers to pull from cache and not roundtrip prior to the Expires date?
2. After the Expires date, what do I need to do to get the request to include the Last-Modified date header sent to the server?
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><%
%><%@ page import="java.net.*"%><%
%><%@ page import="java.util.*"%><%
%><%@ page import="java.util.Date"%><%
%><%@ page import="javax.servlet.*"%><%
%><%@ page import="java.text.SimpleDateFormat" %><%
// In a real application, the updatedDate would come from a database or file
Calendar thisCal = new GregorianCalendar();
thisCal.set(2009,02,15);
Date     updateDate = thisCal.getTime();
// This never returns a valid date
long thisLongDate = request.getDateHeader("Last-Modified");
Date cachedDate    = ((thisLongDate<0)?null:new Date(thisLongDate));
Date todaysDate    = new Date();
// Show all three dates in the output
String   outString = "";
SimpleDateFormat   showDateFormatter = new SimpleDateFormat ("yyyy-MM-dd hh:mm:ss");
outString += "================================================================<br> \n";
outString += " Start TestSuite25.jsp "+showDateFormatter.format(todaysDate)+"<br> \n";
outString += "Update date is "+showDateFormatter.format(updateDate)+"<br> \n";
outString += "Cached date is "+((cachedDate==null)?null:showDateFormatter.format(cachedDate))+"<br> \n";
response.setContentType("text/html");
if (request.getParameter("lastmodified") != null)
   outString += "Set Last Modified header: may trigger If-Modified-Since request. <br> \n";
   response.setDateHeader("Last-Modified",updateDate.getTime());
// force validation .. does this hit my code??
if (request.getParameter("cache") != null)
    outString += "Set cache control to no-cache to force validation on every call<br> \n";
    response.setHeader("Cache-Control", "no-cache");
// use cache for 5 days, then validate
thisCal.setTime(todaysDate);
thisCal.add(Calendar.DATE,5);
response.setDateHeader("Expires", thisCal.getTime().getTime());
// Check for still fresh on server
if (!(cachedDate == null) && (!cachedDate.before(updateDate)))
   outString += "Contents are unchanged: send 303 status message<br> \n";
   response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
   System.out.println(outString);
else
   outString += "Rebuild and send the HTML <br>";
   System.out.println(outString);
   // Build and send the HTML ...
%>
<html>
<head>
<title>Test suite</title>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
</head>
<body >
<br>
<h2 align="center">Test 25: Controlling Cache</h2>
<h3 align="center">Click <a href="TestSuite21.html">here</a> to continue to Test 26.</h3>
useage: TestSuite25.jsp<br>
optional parameters: <br>
   cache=nocache: include no-cache to force validation each time<br>
   lastmodify=set: include Last-Modified date hearer<br>
<br>
<%=outString%>
</html>
</body>
<% } %>

let me tell you from BSP side !
within your BSP application set a javascript timer for 2 minutes and upon completion run a javascript to kill the backend session along with the SSO2 cookie.
check the BSP application system/session_single_frame.htm
for a javascript named "exitBSPApplication"
Hope this is helpful.
Regards
Raja

Cache Problem in iPlanet (Solaris)

We are using iPlanet on solaris. we are having cache problem. Everytime we make any change in out JSP files we have to stop the server and then we clear the cache from ClassCache folder. Then we restart the server. Please let me know, how can I avoid restarting the server. Thanks

Sanjay,
You do not say which version you are using but I
believe some people had problems with 4.1 that went
away when they upgraded to 4.1.3.
The JSP source file should be compared with the
version in the cache at run time, so a newer version
should be picked up automatically. However, a JSP that
you only 'include' in an outer JSP will not be updated
because only the including JSP is checked for update.
If this is the problem you have, you should be
able to force a run time check for the inner JSP by
using "jsp:include page=<name>.jsp" in the including
(outer) JSP.
I hope this helps.
Alan Beecraft, Sun Developer Technical Support

Caching problem w/ primary-foreign key mapping

I have seen this a couple of times now. It is not consistent enough to
create a simple reproducible test case, so I will have to describe it to you
with an example and hope you can track it down. It only occurs when caching
is enabled.
Here are the classes:
class C1 { int id; C2 c2; }
class C2 { int id; C1 c1; }
Each class uses application identity using static nested Id classes: C1.Id
and C2.Id. What is unusual is that the same value is used for both
instances:
int id = nextId();
C1 c1 = new C1(id);
C2 c2 = new C2(id);
c1.c2 = c2;
c2.c1 = c1;
This all works fine using optimistic transactions with caching disabled.
Although the integer values are the same, the oids are unique because each
class defines its own unique oid class.
Here is the schema and mapping (this works with caching disabled but fails
with caching enabled):
table t1: column id integer, column revision integer, primary key (id)
table t2: column id integer, column revision integer, primary key (id)
<jdo>
<package name="test">
<class name="C1" objectid-class="C1$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t1"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c2">
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
<class name="C2" objectid-class="C2$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t2"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c1">
<extension vendor-name="kodo" key="dependent" value="true"/>
<extension vendor-name="kodo" key="inverse-owner" value="c2"/>
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="table" value="t1"/>
<extension vendor-name="kodo" key="ref-column.id" value="id"/>
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
</package>
</jdo>
Because the ids are known to be the same, the primary key values are also
used as foreign key values. Accessing C2.c1 is always non-null when caching
is disabled. With caching is enabled C2.c1 is usually non-null but sometimes
null. When it is null we get warnings about dangling references to deleted
instances with id values of 0 and other similar warnings.
The workaround is to add a redundant column with the same value. For some
reason this works around the caching problem (this is unnecessary with
caching disabled):
table t1: column id integer, column id2 integer, column revision integer,
primary key (id), unique index (id2)
table t2: column id integer, column revision integer, primary key (id)
<jdo>
<package name="test">
<class name="C1" objectid-class="C1$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t1"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c2">
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="column.id" value="id2"/>
</extension>
</field>
</class>
<class name="C2" objectid-class="C2$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t2"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c1">
<extension vendor-name="kodo" key="dependent" value="true"/>
<extension vendor-name="kodo" key="inverse-owner" value="c2"/>
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="table" value="t1"/>
<extension vendor-name="kodo" key="ref-column.id" value="id2"/>
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
</package>
</jdo>
Needless to say, the extra column adds a lot of overhead, including the
addition of a second unique index, for no value other than working around
the caching defect.

Tom-
The first thing that I think of whenever I see a problem like this is
that the equals() and hashCode() methods of your application identity
classes are not correct. Can you check them to ensure that they are
written in accordance to the guidelines at:
http://docs.solarmetric.com/manual.html#jdo_overview_pc_identity_application
If that doesn't help address the problem, can you post the code for your
application identity classes so we can double-check, and we will try to
determine what might be causing the problem.
In article <[email protected]>, Tom Landon wrote:
I have seen this a couple of times now. It is not consistent enough to
create a simple reproducible test case, so I will have to describe it to you
with an example and hope you can track it down. It only occurs when caching
is enabled.
Here are the classes:
class C1 { int id; C2 c2; }
class C2 { int id; C1 c1; }
Each class uses application identity using static nested Id classes: C1.Id
and C2.Id. What is unusual is that the same value is used for both
instances:
int id = nextId();
C1 c1 = new C1(id);
C2 c2 = new C2(id);
c1.c2 = c2;
c2.c1 = c1;
This all works fine using optimistic transactions with caching disabled.
Although the integer values are the same, the oids are unique because each
class defines its own unique oid class.
Here is the schema and mapping (this works with caching disabled but fails
with caching enabled):
table t1: column id integer, column revision integer, primary key (id)
table t2: column id integer, column revision integer, primary key (id)
<jdo>
<package name="test">
<class name="C1" objectid-class="C1$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t1"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c2">
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
<class name="C2" objectid-class="C2$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t2"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c1">
<extension vendor-name="kodo" key="dependent" value="true"/>
<extension vendor-name="kodo" key="inverse-owner" value="c2"/>
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="table" value="t1"/>
<extension vendor-name="kodo" key="ref-column.id" value="id"/>
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
</package>
</jdo>
Because the ids are known to be the same, the primary key values are also
used as foreign key values. Accessing C2.c1 is always non-null when caching
is disabled. With caching is enabled C2.c1 is usually non-null but sometimes
null. When it is null we get warnings about dangling references to deleted
instances with id values of 0 and other similar warnings.
The workaround is to add a redundant column with the same value. For some
reason this works around the caching problem (this is unnecessary with
caching disabled):
table t1: column id integer, column id2 integer, column revision integer,
primary key (id), unique index (id2)
table t2: column id integer, column revision integer, primary key (id)
<jdo>
<package name="test">
<class name="C1" objectid-class="C1$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t1"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c2">
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="column.id" value="id2"/>
</extension>
</field>
</class>
<class name="C2" objectid-class="C2$Id">
<extension vendor-name="kodo" key="jdbc-class-map" value="base">
<extension vendor-name="kodo" key="table" value="t2"/>
</extension>
<extension vendor-name="kodo" key="jdbc-version-ind"
value="version-number">
<extension vendor-name="kodo" key="column" value="revision"/>
</extension>
<field name="id" primary-key="true">
<extension vendor-name="kodo" key="jdbc-field-map" value="value">
<extension vendor-name="kodo" key="column" value="id"/>
</extension>
</field>
<field name="c1">
<extension vendor-name="kodo" key="dependent" value="true"/>
<extension vendor-name="kodo" key="inverse-owner" value="c2"/>
<extension vendor-name="kodo" key="jdbc-field-map" value="one-one">
<extension vendor-name="kodo" key="table" value="t1"/>
<extension vendor-name="kodo" key="ref-column.id" value="id2"/>
<extension vendor-name="kodo" key="column.id" value="id"/>
</extension>
</field>
</class>
</package>
</jdo>
Needless to say, the extra column adds a lot of overhead, including the
addition of a second unique index, for no value other than working around
the caching defect.
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com

Bridge update does not fix caching problems.

Dear Adobe,
The 5.0.1.23 update for Bridge CS6 does NOT fix the problem of constantly re-caching layered TIF files.
I originaly reported the problem here on May 16, 2012.
http://forums.adobe.com/thread/1007560
At that time I also submitted a bug report via photoshop.com, and received an e-mail response from Adobe support confirming the problem had been replicated in their lab and promising a fix in the next update.
I've since tracked several other reports of this bug and related cache problems.
I assume that, at best, we will have to wait another 6 months or more for the next update. How can I assure this bug will be addressed?

redcrown on guard wrote:
The 5.0.1.23 update for Bridge CS6 does NOT fix the problem of constantly re-caching layered TIF files.
At that time I also submitted a bug report via photoshop.com, and received an e-mail response from Adobe support confirming the problem had been replicated in their lab and promising a fix in the next update.
Thank you for this bit of information. Maybe it means I can stop the deactivations/uninstall/reinstall/reactivate cycle to try yet another solution. And hopefully, this will stop the re-caching problem with other than tif files.
regards
*S*

Caching problem in Chrome and Firefox

Hey folks,
I ran into a weird problem. I created a video player based on the Strobe Media Playback. I added a couple of plugins. This player is used to watch progressive download FLV files.
I ran into the following issue. I watch part of a video. I select another one. Then I select the previous one again. Only the cached portion of the first video is shown. The entire video will not be downloaded again from the server, but only the portion already cached on the client.
This problem is really bad in Chrome. When I restart FF, I can watch the entire video. Not in Chrome. The only way to solve this in Chrome is to clear the cache.
Any ideas?
The website is live, so you can test this yourselve. http://www.submergeproductions.com/videos.aspx
All help very welcome, because this is a major issue.
Follow up. I made a quick fix. I added a random number to the FLV url to force a redownload from the server, but this quite a dirty fix. I would rather have a restart/continuation of the download if the file was only partially downloaded.
Thanks,
Peter

Hi Silviu,
the reason why it works now is because I uploaded a modified version. I append "?<random number> to the URL. That prevents caching problems because the browser hasn't got the version cached. But I still report it as a bug.
Peter

Caching problem of servlet

Hi guys
We are facing this problem of caching within our project. The project aims to generate a html code to pick up some rich media ads details at random and displaying on the html file where the generated code is expected to be pasted. We developed two servlets, one which extracts the ads from the database randomly and then depanding on the ad type it calls the other servlet as src of an iframe, which in turn puts all code for displaying the rich media ads. The script which we are generating for the user to paste onto their pages is:
<script LANGUAGE="JAVASCRIPT" src="http://192.168.1.6:8080/advert_java/servlet/GetAdServlet?region=1&zone=1&type=nossi&cachevar=yes">
</script>First servlet (GetAdServlet) returns the javascript statements and thus is called using this generated code. Now cotents of the iframe are supplied by the second servlet ie richMediaServlet. This servlet is called like
iframeURL = fullHttpDir+"/servlet/RichMediaServlet?";
iframeURL += "bannerCode="+ RNBanner (BannerCode to be called);
out.println("document.write(\"<iframe src='" + iframeURL + "' height=" + hheight +" width="+ wwidth + " SCROLLING=no FRAMEBORDER=0 MARGINWIDTH=2 MARGINHEIGHT=2 onfocus='window.focus(); return iframeFocus()'>\");");
out.println("document.write(\"</iframe>\");");This richmediaServlet returns HTML into <iframe>. when richmediaservlet is called, a parameter 'bannerCode' is passed. then richmediaServlet fatches the banner from the database and displays the banner into the <iframe>.
Now the problem comes when we run the html file containing the script tag mentioned above, and refresh our page, ideally it should pick the ads randomly and pass it on to RichMediaServlet.
I also try debugging both servlets. I called the getadservlet from javascript mentioned above and put debugging info in both the servlets, now for every refresh we do on the html side, we are getting a different random bannercode in adservlet but in richmedia when we print the bannercode received in querystring it is taking an older value which was displayed some time back and keeps on doing this for quiet a long time, making it look like some caching problem of RichMediaServlet.
Instead when we tried to put the same html <script> code into another servlet's doGet, everything seems to be working fine.
i have also used the following code to prevent the caching on both the setvlets
long currentTime = System.currentTimeMillis();
response.setHeader("Cache-Control", "no-cache, must-revalidate");
response.setHeader("Pragma", "no-cache");
response.setDateHeader("Last-modified", currentTime);
response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT"); and following in the iframe's head tag before the iframe tag in the getAdServlet.
out.println("document.write('<head>');");
out.println("document.write('<meta http-equiv=\"Cache-Control\" content=\"no-cache,must-revalidate\">');");
out.println("document.write('<meta http-equiv=\"Pragma\" content=\"no-cache\">');");
out.println("document.write('<meta http-equiv=\"Last-modified\" content=\""+ currentTime + "\">');");
out.println("document.write('<meta http-equiv=\"expires\" content=\"Sat, 6 May 1995 12:00:00 GMT\">');");
out.println("document.write('</head>');");I request you all geeks to try and help me to your best. The project is at its final stages and in high urgency now.

i think the caching is being in the browser, with the iframe.
You should try passing a random param to the servlet in the iframe URL, something like:
var a = Math.random() * 10000000; //for example
out.println("document.write(\"<iframe src='" + iframeURL +"&rand="+a+"' height=" + hheight +" width="+ wwidth + " SCROLLING=no FRAMEBORDER=0 MARGINWIDTH=2 MARGINHEIGHT=2 onfocus='window.focus(); return iframeFocus()'>\");");
out.println("document.write(\"</iframe>\");");
...It should force the browser to ask for the servlet again
hope this helps...

Caching problem with Internet Explorer

Hi,
users of an ApEx application I'm working on are reporting that when they're deleting an uploaded file from one of the pages in the application (using Internet Explorer), the link to the file remains. This is however not an issue in FireFox, and after some research I found out that this is a caching problem in IE. It can be avoided by making IE check for newer versions of stored pages every time a page is visited, but it is clearly not an option to ask all our users to do this. I also learned that it can be fixed by randomizing the file URL every time the page is loaded, but I don't know how to randomize a URL, nor how to make it still point to the uploaded file.. Any help would be appreciated!
Thanks,
-Kjetil

Kjetil,
This problem is also there if you use Flash Charts with a drilldown. See this posting:
http://www.deneskubicek.blogspot.com/
It will also link you to a corresponding thread and to an example in my demo application.
The idea with a random number changing you link is the same I used in extending my
xml chart package.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.opal-consulting.de/training
http://htmldb.oracle.com/pls/otn/f?p=31517:1
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ADF cache problem

Hello,
I'm developing a web application with an ADF tree accessing to a Content DB repository. When I deploy the application and navigate to the tree everything look fine. The problem occurs, when the content of the repository changed outside of the web application (e.g. a file will be deleted with Oracle drive), the tree doesn't display the changes. The only way to get the right state of the tree, clear the browser cache and reload the page again. In my opinion it looks like a caching problem. Putting the following meta information in the html header also failed!
<meta http-equiv="pragma" content="no-cache"/>
<meta http-equiv="expires" content="0"/>
<meta http-equiv="cache-control" content="no-cache"/>
Is there a possibility to disable the caching of such ADF components?
Hope you can help me!
Thanks,
Alex

This will probably help you: http://www.oracle.com/technology/products/ias/web_cache/afc/index.html
Regards,
Koen Verhulst

Cache problem for this

Hi
in the saw.sessionsinfo.xml file ,i change the home link prop true to false
but it not remove from the presentation side
below is my file
Below is my script file
plz check it
give if any errors
<?xml version="1.0" encoding="UTF-8"?>
<resourceBundle xmlns="oracle.bi.ps.resourceBundle/v1">
<gdexpression id="noLogoffUI" expr="session.hideLogoffLink" />
<gdexpression id="syndicate" expr="session.syndicate" />
<gdexpression id="canAccessDashboards" expr="privileges.Access['Global Portal']" />
<gdexpression id="hdrLinkCatalog" expr="true" />
<gdexpression id="hdrLinkOpen" expr="true" />
<gdexpression id="hdrLinkAdvanced" expr="true" />
<gdexpression id="hdrLinkHelp" expr="true" />
<gdexpression id="hdrLinkHome" expr="false" />
<gdexpression id="hdrLinkGSearch" expr="true" />
<gdexpression id="hdrLinkNew" expr="true" />
<gdexpression id="hdrLinkDashboards" expr="true" />
<gdexpression id="hdrLinkSettings" expr="true" />
<gdexpression id="bipKeepAlive" expr="session.bipKeepAlive" />
<gdexpression id="bipWebUrl" expr="system.config['AdvancedReporting/WebURL']" />
<gdexpression id="bipExternalRepository" expr="system.config['AdvancedReporting/ExternalRepository']" />
<gdexpression id="biComposerContext" expr="system.config['BIComposer/ContextPath']" />
</resourceBundle>
plz anybody give solution for this
Edited by: ARYABRAHMA on Feb 5, 2013 3:38 AM

is cache problem for this

Qaaws not refreshing query triggered from Xcelsius, maybe a cache problem

Hi,
I'm having a problem with QAAWS and Xcelsius
I'm using a List Builder component to select multiple values in this case STATES from the efashion universe
I use the selected states as values to feed a prompt in a QAAWS query, the qwaas query has the SALES REVENUE as the resultset and in the conditions it has a multi prompt for STATES
When I preview my dashboard, I select the States, then UPDATE the values and then refresh the query with a CONNECTION REFRESH button, The first time I do this it works fine and returns the Sales revenue.
If I add a new State to my selection and then run update and run run again the query with the refresh button, it doesn't work any more and it shows again the value retrieved from the first query
First I thought that the query wasn't triggered by Xcelsius, but by doing some more tests I found that actually the query runs but it returns the value from the first query
I think this is a cache problem , so is there a way to tell QAAWS to always run the query and not use the cache?
thanks,
Alejandro

Hello Alejandro,
QaaWS indeed uses a cache mechanism to speed up some Xcelsius interactions (from XI 3.0 onwards), but your issue should not be induced by this, as cache sessions are discriminated according to session user id & prompt values, so if you are correctly passing prompt values, QaaWS should not serve you with the previous values by error.
Could you specify how you are passing several prompt values to the QaaWS? There might be an issue there, so make sure that:
1. QaaWS query prompt is set using In List operator, otherwise only first value will actually be taken into account,
2. In Xcelsius Designer Data Manager, web service input paremeters are duplicated to accept several input values (you cannot submit you list of prompt values as a list to a single input parameter).
If this still does not work, I'd suggest you debug your dashboard runtime using an HTTP sniffer like Fiddler (available from http://www.fiddler2.com/) which enable you to inspect the sent & recieved HTTP messages with the server, where you should verify which prompt values are sent to the QaaWS servlet.
FYI, you can set the QaaWS cache lifetime for each query, by going into QaaWS edition first wizard screen, click Advanced... button and change value for timeout parameter (default is 60 seconds)
Hope that helps,
David.

ASO cache problem with Windows 7

I have a large base of AS2 classes that support my application. I've been working on it for a few years and I'm very familiar with the ASO cache problem that causes edits to not be compiled. Well, I hit it today and I can't get rid of the old files. I'm running CS5.5 and I used the menu first. Then I manually deleted the ASO files. Then I rebooted the computer and searched the entire C: drive for ASO files and deleted all of them. Nothing worked. I finally renamed one of my class files (and the the necessary edits that flowed therefrom) and that one file was recompiled. Obviously there is a hidden cached file somewhere. I have Win7 Pro 64-bit. Has anyone had a similar problem? The last thing I want to have to do is rename all of my class files or tear down and rebuild my development box. TIA

3.1 is not "fine" and the drivers leave much to be desired.
You will probably need to do a Safe Mode and uninstall, rollback, system restore. Use your DVD for Windows 7.
Not sure of the support issues and details on MacBook Pro 13" as to whether you have graphic driver issue, AppleHFS, or other (and to say 'total hangup' doesn't really lead to what and why).

Touchscreen TV app slows down - caching problem?

We have created an interactive Touchscreen using flash CS4 - http://www.cadstudio.co.nz/client_hlc/home.swf
The Touchscreen is already in the showroom.
Every morning it is restarted.
By midday the whole application slows down to the point were it becomes very slow.
I presume this is a caching problem.
In order to resolve this we close down IE and restart it (playing the SWF file through Internet Explore on full screen mode).
Once it has restarted it plays at the correct speed.
Does any one know of a solution to this problem?
I have thought about setting up windows 7 to reboot IE and have the flash file restart every few hours however a client may be navigating through the
display when it reboots it self. I would prefer to avoid this if possible.
Thanks.

The Touchscreen TV is offsite however i will try and monitor it with that application you sent through.
I have just read that using event listeners may cause the problem.

Cache Problem-JSP

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