Session problem in ADF BC
We have an application developed in Jdev 10.1.3.4 (JSP, Struts, ADF BC) and running on OAS. Now we have a big problem with session, hope somebody can help with some ideas.
We set session time to 45 min in the web.xml. The problem is that sometimes some user work on a page with form,for instance performing some edit activity. If he/she leave the page open inactive for more than 45 minutes and come back from lunch, press the ’save’ button, the application would then commit the change to the wrong row in database, most probably the top row in the View Object(VO) instance. This is because the application module actually does a rollback when session expires, it loses all user data.(e.g. row currency in VO instance).
To avoid saving wrong data to the wrong place, we implemented a session Filter(see att. Below: ApplicationSessionExpiryFilter.java) to catch session time-out and forward request to an error page alerting user that their session has expired due to long time of inactivity. The Filter works as it should but it gives another problem. If user already has one of our application page open for very long time and open another page in a new browser (e.g. click a link from an email), he/she will get session-expire error immediately in the new browser. I guess it is because the session in the first browser already expires and the newly opened the browser shares the same session with the first one. That is how browsers works, we can do nothing about it.
But our users are of course not very happy about getting the session errors in a newly opened browser. So we tried implementing a heartbeat funtion in AJAX(see att. Below: Heartheat.html and Template.jsp) to keep the session alive until the page is closed. Basically what we do is adding an invisible div tag in every jsp page and invoke AJAX funtion to periodically update the div tag with a small html page. In this way, a request is being sent to the server every 5 minutes thus the session should be kept alive until the page/browser is closed.
It sounds to us like a very logical solution but it doesn’t work very properly. We sometimes still get the session error page immediately after opening a new page while we have another page open for long time.
Could anyone please help to look at our Filter and heatbeat funtion? Is there anything wrong with our Filter or the heartbeat? Why does the session still expire before we close the page?
All we do here is to try to avoid the initial probelm with saving data after session and the application module expires. If anyone has a better solution to this problem, we would very much like to try. Appreciate if anyone can share some ideas!
Thanks in advance!
*1. ApplicationSessionExpiryFilter.java*
public class ApplicationSessionExpiryFilter implements Filter {
private FilterConfig _filterConfig = null;
public void init(FilterConfig filterConfig) throws ServletException {
_filterConfig = filterConfig;
public void destroy() {
_filterConfig = null;
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest)request;
boolean sessionInvalid = false;
if(httpRequest.getRequestedSessionId() != null) {
if(!httpRequest.isRequestedSessionIdValid()) {
if (!httpRequest.getRequestURI().endsWith("sessionExpired.do")) {
sessionInvalid = true;
if (sessionInvalid) {
((HttpServletResponse) response).sendRedirect(_filterConfig.getInitParameter("SessionTimeoutRedirect"));
else {
chain.doFilter(request, response);
*2. Heartheat.html* (A small html page to be invoked by template.jsp periodically)
<html>
<head>
<META Http-Equiv="Cache-Control" Content="no-cache, must-revalidate">
<META Http-Equiv="Pragma" Content="no-cache">
<META Http-Equiv="Expires" Content="Expires: Mon, 26 Jul 1997 05:00:00 GMT">
</head>
<body>
heartbeat to keep session alive!
</body>
</html>
*3. Template.jsp* (Template page to be extended by all jsp pages, invoke heart.html every 5 min)
<Html>
<body>
<div id="heartbeat" style="display:none">
</div>
<script type="text/javascript" language="javascript">
new Ajax.PeriodicalUpdater('heartbeat','jsp/template/heartbeat.html',{ method: 'post', frequency: 300, decay: 1 }); // update heartbeat.html every 300 sec(5min)
</script>
</body></html>
Hi Shay,
Reviewing ADFContex methods it seems that this object shouldn't be accessible from BC. Example:
public static ADFContext initADFContext(java.lang.Object context,
java.lang.Object session,
java.lang.Object request,
java.lang.Object response)
Initializes the ADFContext for the environment of the specified context.
Parameters:
context - the ServletContext or PortletContext of the current execution environment.
session - the HttpSession or PortletSession of the current execution environment. OPTIONAL.
request - the HttpServletRequest or PortletRequest of the current execution environment. OPTIONAL.
response - the HttpServletResponse or PortletResponse of the current execution environment. OPTIONAL.
Returns:
the ADFContext that was current when init was invoked. Should be passed back to resetADFContext after the block requiring the ADFContext has completed.Kuba
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Should we try to access session scope in ADF BC ?
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In the blog post "How to Access Session Scope in ADF BC "
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Reviewing ADFContex methods it seems that this object shouldn't be accessible from BC. Example:
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at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)- anyone wants test case which illustrates problem ? We have one based on Oracle fod/fusion demo schema...Cvele wrote:
is this mean that session.invalidate() is not a valid operation in this situation ?
Note that problem does not occur if application does not use ADF Business Components ...
- so, can we forget about session.invalidate() when using ADF BC ?
In this case, what is alternative; how, for example, notify application module instances that application should be connected to the another one dataSource ?
Invalidating session solves this problem .... -
I am using 11.1.2.1 Jdeveloper and i have problem with open sessions.
I set in appModule pool, min available size: 0
I set in Db Conexion pool, min available size:0
This are the step i am doing to get the problem:
- I Clic on search button from inputListofValue, until request end i turn off pc wifi.
- I wait 1 minuts and then I turn on pc wifi again.
- Open another window from Internet Explorer and enter to the same web page.
After that i check session and i find two open session:
1 - first session is executing a query ( is the query from list of value)
2 - second session is inactive (session actually i have)
I take a picture in this moment:
http://s2.subirimagenes.com/imagen/previo/thump_7690052open-connections.png
after wait idle timeout from appModule pool the second session die but first session is open.
First session is executing query for eternity!! I hear that ADF kill transaction when transaction time is long but maybe dont work bc i check next day and first session is open.
I dont want to check disconnect db conexion option from appmodule configuration bc that force to kill sessions after each request and that lose temporal table data.
Any help plz??Hi
I find there is jbo.ejb.txntimeount in appmodule properties
descriotion says:
time after the application module session bean transaction expires
by default is 1830 = 30 minuts.
but transaction is never killed... so maybe a bug?? bad configuration??, hlp please -
Problem in ADF Table Sorting Accessor Fields Generated from EJB 3
Here are the things that I have done:
1) created EJB entities for Employee and Department based on the HR schema
2) created an HRFacade session bean
3) generated DataControl
4) created a browse page
5) created an adf read only table with the following fields: employeeId, lastname, and departmentName with row selection, filtering and sorting enaabled.
when I invoke sorting for the employeeId and lastname fields, the table sorts fine, but...
when I invoke sorting on the departmentName field (an accessor field), the following error occured:
WARNING: ADF: Adding the following JSF error message: Definition departmentName of type Attribute is not found in employeesFindAll.
oracle.jbo.NoDefException: JBO-25058: Definition departmentName of type Attribute is not found in employeesFindAll.
at oracle.jbo.uicli.binding.JUCtrlValueBinding.findAttributeDef(JUCtrlValueBinding.java:589)
at oracle.jbo.uicli.binding.JUCtrlValueBinding.findAttributeDef(JUCtrlValueBinding.java:559)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlRangeBinding.__setSortCriteria(FacesCtrlRangeBinding.java:247)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding$FacesModel.setSortCriteria(FacesCtrlHierBinding.java:346)
at org.apache.myfaces.trinidad.component.UIXCollection.setSortCriteria(UIXCollection.java:464)
at org.apache.myfaces.trinidad.component.UIXTable.setSortCriteria(UIXTable.java:196)
at org.apache.myfaces.trinidad.component.UIXTable.broadcast(UIXTable.java:260)
at oracle.adf.view.rich.component.UIXTable.broadcast(UIXTable.java:140)
at oracle.adf.view.rich.component.rich.data.RichTable.broadcast(RichTable.java:364)
at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:147)
at org.apache.myfaces.trinidad.component.UIXTable.broadcast(UIXTable.java:271)
at oracle.adf.view.rich.component.UIXTable.broadcast(UIXTable.java:140)
at oracle.adf.view.rich.component.rich.data.RichTable.broadcast(RichTable.java:364)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:787)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:280)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:165)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:191)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:85)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:420)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:54)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:420)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.security.jps.wls.JpsWlsFilter$1.run(JpsWlsFilter.java:96)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
at oracle.security.jps.wls.util.JpsWlsUtil.runJaasMode(JpsWlsUtil.java:146)
at oracle.security.jps.wls.JpsWlsFilter.doFilter(JpsWlsFilter.java:140)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:202)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Is this a bug or a not supported feature?
We been stack on this... Help!!!I have a similar problem but related to the creation of Project Gantt Chart.
oracle.jbo.NoDefException: JBO-25058: No se ha encontrado la definición XXXView2 del tipo Atributo en YYYView1.
this is happened when i try to create a Project Gantt Chart whit 2 view objects that have a parent-child relationship where XXXView2 (SUBTASKS) is the child and YYYView1 (TASK) is the parent.
still not find the solution.
This is the bug? -
Problem deploying adf app to weblogic
I've successfully migrated a 10.1.3.4 adf application to 11.1.1.2.0 and can run it on the integrated wls. However, I can't deploy/install to my standalone wls (10.3.2) without getting the following error during deployment/installation of the .ear:
An error occurred during activation of changes, please see log for details - (Class not found) javax.faces.webapp.ConverterELTag
or at times i'll see a similar error message:
An error occurred during activation of changes, please see log for details - (Class not found) javax.faces.component.UIComponent
I've built the .ear file via jdev and I've installed the adf runtime libraries in the wls domain that I'm trying to deploy to. Also, from what I can gather, this has something to do with the jsf-api.jar, since those classes referenced above belong to that jar. I can see that library (jsf(1.2,1.2.9.0)) is installed on the wls domain/target that I'm deploying to. Any ideas what the problem might be? Thanks.I'm still unsuccessful at creating the app server connection, even after choosing weblogic 9.xx as you suggested. On one of the screens of the wizard, it asks for a Target Node value. I've only set up the AdminServer 'target' in this wls domain, so that's the value I used as the Target Node value. When I use the Test Connection button, I see nothing that tells me the connection was successful or not. If you have any more ideas or have tried this yourself and got it to work I'd like to hear about it. But, since you said this combination was not supported, I'm not sure I'm going to go that route anyhow at this point. Thanks for the help.
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