Partial Page Caching in 902

What, if Any, partial page caching using ESI tags can be done in Portal V2 or with the PDK?

There is no PPC available through Portal in 902.
PPC will be available in 903/4.
Obviously you can still use PPC in your on code that directly accesses Webcache
Thanks
-JP

Similar Messages

URGENT - Partial Page Caching - Oracle WebCache

I'm trying to simply test partial page caching by attempting to cache all of a user interface template (and the associated page) except for a "Hello #user#" command which results in a personalized greeting on the page.
I've attempted to do this by following the WebCache documentation, but they keep mentioning inserting a command in the HTTP response message to indicate the use of ESI, and I have NO idea how to access this, or if it's even necessary.
Is there a simple way to accomplish my goal?

The surrogate-control response header is necessary in order to tell Web Cache that the content is marked-up with ESI and that it will require processing.
A future version of Portal will do ESI out-of-the box. In the meantime, I am not familiar enough with Portal internals to be able to tell you
exactly how to set this response header.
I'm not sure if it would work for you, but if you're only looking to substitute different user's names on a particular page, then you could try using
the <webcachetag> functionality. This isn't part of ESI, but a lot of customers are using it to do simple personalization of the kind you mentioned.
This feature is documented in the Web Cache Admin and Deployment Guide -- I think the topic is something like "Simple Personalization".
With this feature, you don't have to set any response headers. However, you do have to configure the cache correctly so that it knows which pages require
the substitution operations. The 9.0.2 version of the Web Cache software and doc can be found from links off of http://otn.oracle.com/products/ias/web_cache/

Partial page caching in v3.0

one of the new features in v3.0 is caching of parts of a page.
can anyone provide an example so that we can provide feedback on this feature.

Hello Farhan,
On the evaluation instance, you can check the Cache section of a region, to see the available options. I'm guessing the page section will look similar.
As Patrick pointed out, and as you can see on the "Known Issues", this feature is not enabled yet.
Regards,
Arie.

ADF UIX Partial page rendering

Hi
I am facing a mysterious problem with partial page rendering in ADF UIX.
My page contains a <header> H1 and inside this there are two headers(H2 and H3).
The partial page rendering is in the header H2 and is working fine.
When i remove the below header H3 the partial page rendering ceases to work and get stuck.
Pasting the full code below. Please suggest.
<?xml version="1.0" encoding="windows-1252"?>

<page xmlns="http://xmlns.oracle.com/uix/controller"
xmlns:ui="http://xmlns.oracle.com/uix/ui"
xmlns:ctrl="http://xmlns.oracle.com/uix/controller"
xmlns:html="http://www.w3.org/TR/REC-html40"
xmlns:myTemplate="http://xmlns.oracle.com/xhub"
xmlns:bc4j="http://xmlns.oracle.com/uix/bc4j"
xmlns:data="http://xmlns.oracle.com/cabo/marlin" expressionLanguage="el">


<bc4j:registryDef>

<bc4j:rootAppModuleDef name="XhubRegAM"
defFullName="oracle.apps.snw.tpadmin.server.XhubRegAM"
configName="XhubRegAMLocal" releaseMode="stateful">
<bc4j:viewObjectDef name="TpProfilesRegVO" rangeSize="1" autoCreate="false"/>
<bc4j:viewObjectDef name="UsersRegVO" rangeSize="1" autoCreate="false"/>

<bc4j:viewObjectDef name="IdentifierDomainsView" rangeSize="20"/>

<bc4j:viewObjectDef name="XhubTerritoriesTlView" rangeSize="300"/>
</bc4j:rootAppModuleDef>
</bc4j:registryDef>

<templates xmlns="http://xmlns.oracle.com/uix/ui">
<templateImport source="xhubtpadmin.uit"/>
</templates>
<content>

<dataScope xmlns="http://xmlns.oracle.com/uix/ui"
xmlns:data="http://xmlns.oracle.com/uix/ui">
<provider>

<data name="textSource">
<bundle class="oracle.apps.snw.uicommon.TextProvider"/>
</data>

<data name="adminInfo">
<method class="oracle.apps.snw.tpadmin.webui.AdminInfo"
method="getAdminInfo"/>
</data>
</provider>
<contents>
<document>

<metaContainer>
<head title="${textSource.REGISTRATION}"/>
</metaContainer>
<contents>
<body>
<contents>

<myTemplate:xhubTpAdminPageLayout selectedTab="1">
<contents>

<messageBox automatic="true"/>

<form name="reg" method="POST">
<contents>


<formParameter name="event"/>

<bc4j:rootAppModuleScope name="XhubRegAM">
<contents>

<header text="${textSource.REGISTRATION}">
<contents>

<styledText styleClass="OraInstructionText"
text="${textSource.REG_PAGE_EXPLAIN}"/>

<header text="${textSource.REG_COMPANY_INFO}">
<contents>
<stackLayout>
<contents>

<labeledFieldLayout id="TpPartialDetails" width="80%"
labelWidth="40%">
<contents>
<messageChoice name="OracleAppsCustFlag"
prompt="Oracle Apps Customer"
required="yes" statePreserved="true"
selectedValue="${ui:defaulting(uix.pageProp.OracleAppsCustFlag, 'select')}">
<primaryClientAction>
<firePartialAction event="buyorsup"
targets="TpPartialDetails"
formSubmitted="true"
unvalidated="true"/>
</primaryClientAction>
<contents>
<option text="-select-" value=""/>
<option text="${textSource.YES}" value="Y"/>
<option text="${textSource.NO}" value="N"/>
</contents>
</messageChoice>
<messageTextInput prompt="${textSource.ORACLE_CSI_Q}"
name="OracleCsi"
text="${uix.pageProp.OracleCsi}"
rendered="${ui:defaulting(uix.pageProp.OracleCsiRender, 'false')}"/>
<messageTextInput prompt="${textSource.YOUR_TP_NAME}"
name="TpName"
tip="${textSource.YOUR_TP_NAME_TIP}"
required="no"
text="${uix.pageProp.TpName}"
rendered="${ui:defaulting(uix.pageProp.TradeswithTPRender, 'false')}"/>
<messageTextInput prompt="${textSource.YOUR_TP_ALIAS}"
name="TpAlias"
tip="${textSource.YOUR_TP_ALIAS_TIP}"
required="no"
text="${uix.pageProp.TpAlias}"
rendered="${ui:defaulting(uix.pageProp.TradeswithTPAliasRender, 'false')}"/>
</contents>
</labeledFieldLayout>
</contents>
</stackLayout>
</contents>
</header>

<header text="${textSource.TP_DEFAULT_CONTACT_INFO}">
<contents>
<labeledFieldLayout width="80%" labelWidth="40%">
<contents>

<messageTextInput prompt="${textSource.PASSWORD_PROMPT}"
name="Password" id="Password"
required="yes" secret="true"
maximumLength="32"
text="${uix.pageProp.Password}"/>
<messageTextInput prompt="${textSource.PASSWORD_CONFIRM_PROMPT}"
name="PasswordConfirm"
id="PasswordConfirm" required="yes"
secret="true" maximumLength="32"
text="${uix.pageProp.PasswordConfirm}"/>
</contents>
</labeledFieldLayout>
</contents>
</header>
</contents>
</header>
</contents>
</bc4j:rootAppModuleScope>
<spacer height="10"/>

<inlineMessage required="yes"
prompt="${textSource.REQUIRED_FIELD}"/>
</contents>
</form>
</contents>

</myTemplate:xhubTpAdminPageLayout>
</contents>
</body>
</contents>
</document>
</contents>
</dataScope>
</content>

<handlers>

<event name="continue">
<bc4j:findRootAppModule name="XhubRegAM">
<method class="oracle.apps.snw.tpadmin.webui.RegistrationHandlers"
method="register"/>
</bc4j:findRootAppModule>
</event>

<event name="cancel">

<bc4j:findRootAppModule name="XhubRegAM">

<bc4j:rollback/>

<go name="main"/>
</bc4j:findRootAppModule>
</event>

<event name="buyorsup">
<bc4j:findRootAppModule name="XhubRegAM">

<method class="oracle.apps.snw.tpadmin.webui.RegistrationHandlers"
method="isBuyerorSupplier"/>
</bc4j:findRootAppModule>
</event>
<event name="*">
<bc4j:findRootAppModule name="XhubRegAM">

<method class="oracle.apps.snw.tpadmin.webui.RegistrationHandlers"
method="setContext"/>
</bc4j:findRootAppModule>
</event>
</handlers>
</page>
Please suggest if you know of any documentation on ADF UIX partial page rendering.
ADF UIX has very little documentation online and finding it hard to debug this issue.
It ll be of great help.
Thanks
Kamal

Hi Jason,
As of EA9, all rendered components support a partialTriggers attribute. This attribute takes a list of master component IDs. If any of the master components are updated via a partial event, the dependent component will be rerendered in the partial update.
If you are on an earlier release, you should upgrade.
Thanks,
Jeanne

Partial page refresh is not working in APEX 4.0

Hi All,
I have a report region in my application,I have selected the following properties for the region,
Pagination scheme - Row ranges X To Y (with next and previous links)
Enable partial page refresh - yes
Display position - bottom -right
Their is an arrow mark link(next /previous) in the right bottom corner,when i click on that ,the region is displaying the next 15 rows, but the region is not getting refresh,the scroll bars are al went off if i click the previous/next link.
After that i refreshed the page by clicking F5 ,scroll bar is appearing now.
In the region header and footer i have added this code,
<div style="overflow:auto;">
</div>for scroll bar
Please some body help me to fix this issue..
Thanks & Regards,
Ramya.
Edited by: Ramya on Apr 15, 2012 10:42 PM

Hi All,
I fixed this issue.
I used Skillbuilders modal popup plugin, to open the form page as popup when i edit the record.To implement this plugin i have already created dynamic action for edit ,create and autoclose the popup.
In the dynamic action i changed the EVENT SCOPE from BINT To LIVE and tested the application.Now its working fine.
I can able to edit the record after i hit the next/previous pagination link .
Thanks ,
Ramya.

(Classic) Report losing pagination on partial page refresh - APEX feature request

I have a page with both an Interactive Report and some classic Report regions.
Based on user updates, there are many occasions where I need to do a partial page refresh.
Thanks to plugin http://www.apex-plugin.com/oracle-apex-plugins/dynamic-action-plugin/refresh-interactive-report-1.0_361.html
I'm able to refresh my IR, but not my classic report (unless I do a submit of the whole page) without losing pagination.
Request: Will a Dynamic action 'Refresh without losing pagination' be part of future apex versions?
Now, in apex 4.2, is there another work around available for classic reports?
(I use 'submit page' now as action, but it's at least a second slower as a partial refresh, and because I need it on every user update, this second becomes a big addition to user frustration).
Thanks, JP

Here is the solution for your problem:
https://apex.oracle.com/pls/apex/f?p=31517:243
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
https://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494

Event handler when using partial page refresh ?

Hi
I have a calendar, which uses partial page refresh. The problem is how to make javascript wait until the calendar has loaded and then do some updates on the calendar (after the user has pressed the next button that runs apex.widget.calendar.ajax_calendar('S','next');, for example ). I thought I could add "onreadystatechange" (or onload) event handler to the calendar like this: onreadystatechange="checkState()", where the function would check the state and if ready then do the updates. This doesn't work. Could somebody please tell me why not ?
Tiina

Hi,
It seems that ajax calendar missing event apexafterrefresh.
I do not know is this "bug" or just feature.
That event would be useful to your case , if I understand correct what you looking for.
For workaround , you can over write original function by placing this to calendar region footer
<script>
apex.widget.calendar.ajax_calendar=function(p_calendar_type, p_calendar_action, p_calendar_date, p_calendar_end_date){
var l_cal_type_field = $v('p_cal_type_field_id');
var l_cal_date_field = $v('p_cal_date_field_id');
var l_cal_end_date_field = $v('p_cal_end_date_field_id');
var l_cal_id = $v('p_calendar_id');
var l_calendar_region = 'calendar' + l_cal_id;
if ( p_calendar_type != 'C' ){
$s(l_cal_date_field,$v('p_calendar_date'));
}else{
if ( $v(l_cal_date_field) == '' ) {
   $s(l_cal_date_field,$v('p_calendar_date'));
if ( $v(l_cal_end_date_field) == '' ) {
   $s(l_cal_end_date_field,$v('p_calendar_end_date'));
// create and apex.ajax.widget object
var a = new apex.ajax.widget('calendar',function(){
/* start the return function */
if(p.readyState == 1){
   document.body.style.cursor = "wait";
}else if(p.readyState == 2){
}else if(p.readyState == 3){
}else if(p.readyState == 4){
   $x(l_calendar_region).innerHTML = p.responseText ;
   $s(l_cal_date_field,$v('p_calendar_date'));
   if (p_calendar_type == 'C') $s(l_cal_end_date_field,$v('p_calendar_end_date'));
   document.body.style.cursor = "";
/* DO HERE THINGS AFTER CALENDAR REFRESH */
}else{return false;}
// code for next,previous and today
if (p_calendar_type == 'S'){
p_calendar_type = $v('p_calendar_type');
}else{
$s(l_cal_type_field,p_calendar_type);
a.ajax.addParam('p_widget_mod',p_calendar_type);
a.ajax.addParam('p_widget_action',p_calendar_action);
a.ajax.addParam('x01',l_cal_id);
var lDate = (!!p_calendar_date && p_calendar_date !== '')?p_calendar_date:$v(l_cal_date_field);
if (p_calendar_type == 'C') {
var lendDate = (!!p_calendar_end_date && p_calendar_end_date !== '')?p_calendar_end_date:$v(l_cal_end_date_field);
a.ajax.add(l_cal_date_field,lDate);
if (p_calendar_type == 'C') a.ajax.add(l_cal_end_date_field,lendDate);
a.ajax.addParam('x02',lDate);
if (p_calendar_type == 'C') a.ajax.addParam('x05',lendDate);
a.ajax.add(l_cal_type_field,p_calendar_type);
a._get();
</script>Where I have comment *"do here things after calendar refresh"*, you can hook own scripts.
Of course this is not best way, but might help you till ajax calendar support dynamic actions fully
Regards,
Jari
Edited by: jarola on Oct 20, 2010 3:11 PM

JSF: partial page rendering is causing memory leak leading to outofmemory

JDeveloper 10.1.3.2.0
JDK: 1.6.0_06
Operating System: Windows XP.
I test my application for memory leaks. For that purpose, I use jconsole to monitor java heap space. I have an edit page that has two dependent list components. One displays all countries and the other displays cities of the selected country.
I noticed java heap space keeps growing as I change country from country list.
I run garbage collection and memory usage does not go down. If I keep changing the province for 5 minutes, then I hit a java heap space outofmemory exception.
To narrow down the problem, I removed the second city component and the problem still exists.
To narrow it down further, I removed autosubmit attribute from the country component and then memory usage stopped increasing as I change country.
country/city partial page rendering is just an example. I am able to reproduce the same problem on every page where i use partial page rendering. My conclusion is PPR is causing memory leak or at least the autosubmit attribute.
This is really bad. Anyone out there experienced same issue. Any help/advice is highly appreciated !!
Thanks
<af:panelLabelAndMessage
inlineStyle="font-weight:bold;"
label="Country:"
tip=" "
showRequired="true"
for="CountryId">
<af:selectOneChoice id="CountryId"
               valuePassThru="true"
               value="#{bindings.CountryId.inputValue}"
               autoSubmit="true"
               inlineStyle="width:221px"
               simple="true">
     <af:forEach var="item"
          items="#{bindings.CountriesListIterator.allRowsInRange}">
     <af:selectItem value="#{item.countryId}"
               label="#{item.countryName}"/>
     </af:forEach>
</af:selectOneChoice>
</af:panelLabelAndMessage>
<af:panelLabelAndMessage
inlineStyle="font-weight:bold;"
label="City:"
tip=" "
showRequired="true"
for="CityId">
<af:selectOneChoice id="CityId"
               valuePassThru="true"
               value="#{bindings.CityId.inputValue}"
               partialTriggers="CountryId"
               autoSubmit="true"
               inlineStyle="width:221px"
               unselectedLabel="--Select City--"
               simple="true">
     <f:selectItems value="#{backing_CountryCityBean.citiesSelectItems}"/>
</af:selectOneChoice>
</af:panelLabelAndMessage>

Samsam,
I haven't seen this problem myself, no.
To clarify - are you seeing this behaviour when running your app in JDeveloper, or when running in an application server? If in JDeveloper, a copuple of suggestions:
* (may not matter, but...) It's not supported to run JDev 10g with JDK 6
* have you tried the [url http://www.oracle.com/technology/pub/articles/masterj2ee/j2ee_wk11.html]memory profiler
Best,
John

ADF Faces : simultaneous partial page rendering

hi
I'm wondering what I can expect from "simultaneous partial page rendering".
I would like to have some af:selectOneChoice components on a page, with next to them some related information about the selected value.
This example application, created using JDeveloper 10.1.3.3.0, does this using partial page rendering (check README.txt):
http://verveja.footsteps.be/~verveja/files/oracle/SimultaneousPPRApp-v0.01.zip
It as a pprPage.jspx with these components ...
          <af:panelPage title="pprPage">
            <af:panelHorizontal>
              <af:commandButton text="some button"/>
              <af:objectSpacer width="10" height="10"/>
              <af:outputText value="requestCounter.value = #{requestCounter.value}"/>
            </af:panelHorizontal>
            <af:panelHorizontal>
              <af:selectOneChoice label="selectOneChoice A"
                                  id="selectOneChoiceA" autoSubmit="true"
                                  binding="#{backing_PPRPage.selectOneChoiceA}"
                                  valueChangeListener="#{backing_PPRPage.onChangeSelectOneChoiceA}">
                <af:selectItem label="null value label"
                               value="#{null}"/>
                <af:selectItem label="first choice label"
                               value="first-choice-value"/>
                <af:selectItem label="second choice label"
                               value="second-choice-value"/>
                <af:selectItem label="third choice label"
                               value="third-choice-value"/>
              </af:selectOneChoice>
              <af:objectSpacer width="10" height="10"/>
              <af:outputText value="#{backing_PPRPage.selectOneChoiceARelatedValue}"
                             partialTriggers="selectOneChoiceA"/>
            </af:panelHorizontal>
            <af:panelHorizontal>
              <af:selectOneChoice label="selectOneChoice B"
                                  id="selectOneChoiceB" autoSubmit="true"
                                  binding="#{backing_PPRPage.selectOneChoiceB}"
                                  valueChangeListener="#{backing_PPRPage.onChangeSelectOneChoiceB}">
                <af:selectItem label="null value label"
                               value="#{null}"/>
                <af:selectItem label="fourth choice label"
                               value="fourth-choice-value"/>
                <af:selectItem label="fifth choice label"
                               value="fifth-choice-value"/>
                <af:selectItem label="sixth choice label"
                               value="sixth-choice-value"/>
              </af:selectOneChoice>
              <af:objectSpacer width="10" height="10"/>
              <af:outputText value="#{backing_PPRPage.selectOneChoiceBRelatedValue}"
                             partialTriggers="selectOneChoiceB"/>
            </af:panelHorizontal>
            <af:outputText value="userAgentHelper.info = #{userAgentHelper.info}"/>
          </af:panelPage>... and has a backing bean like this ...
public class PPRPage
     public String getSelectOneChoiceBRelatedValue()
          return "some " + fSelectOneChoiceB.getValue() + " related value"
               + ", requestCounter.value = " + ELHelper.get("#{requestCounter.value}");
     public String getSelectOneChoiceARelatedValue()
          return "some " + fSelectOneChoiceA.getValue() + " related value"
               + ", requestCounter.value = " + ELHelper.get("#{requestCounter.value}");
     public void onChangeSelectOneChoiceA(ValueChangeEvent pValueChangeEvent)
          // simulating a slow operation/response
          try
               Thread.sleep(2000);
          catch (InterruptedException ex)
               ; // ignore;
     public void onChangeSelectOneChoiceB(ValueChangeEvent pValueChangeEvent)
          // nothing here to slow things down
}It is important to note that changing the value for the "selectOneChoice A" dropbox has some time consuming operation to perform (possibly calculating/querying the related information to show next to it).
Using IE 6 ("userAgentHelper.info = ... MSIE 6.0 ..."), this behaves like this:
(ie-1) Run pprPage.jspx in JDeveloper, which results in a page that shows this:
selectOneChoice A [null value label] some null related value, ...
selectOneChoice B [null value label] some null related value, ...(ie-2) Select "first choice label" from the "selectOneChoice A" dropbox and immediatly after that select "fourth choice label" from the "selectOneChoice B" dropbox, which results in a page that shows this:
selectOneChoice A [first choice label] some first-choice-value related value, ...
selectOneChoice B [fourth choice label] some null related value, ...(ie-3) Select "second choice label" from the "selectOneChoice A" dropbox, which results in a page that shows this:
selectOneChoice A [second choice label] some second-choice-value related value, ...
selectOneChoice B [fourth choice label] some fourth-choice-value related value, ...Using Firefox 2.0 ("userAgentHelper.info = ... Firefox/2.0.0.12"), this behaves like this:
(ff-1) Do the same as in step (ie-1), which has the same result as step (ie-1).
(ff-2) Do the same as in step (ie-2), which results in a page that shows this:
selectOneChoice A [first choice label] some first-choice-value related value, ...
selectOneChoice B [fourth choice label] some fourth-choice-value related value, ...
questions:
(q1) Why does the related information, for the selected "fourth choice label", not show up in step (ie-2) (as it does in step (ff-2))?
(q2) Why does the related information, for the selected "fourth choice label", show up in step (ie-3) while the value was only/already changed in step (ie-2)?
(q3) Does some general approach exist to prevent "simultaneous partial page rendering" behaviour as described in (q1) and (q2)?
many thanks
Jan Vervecken

repost
--

ADF Faces : partial page rendering in f:subview

hi
Please consider this blog post, "ADF Faces: How-to issue a PPR event from a f:subview and how-to PPR of subviews" :
http://thepeninsulasedge.com/frank_nimphius/2008/02/14/adf-faces-how-to-issue-a-ppr-event-from-a-fsubview-and-how-to-ppr-of-subviews/
In this post, Frank Nimphius writes : "... PPR from a containing page to the subview - unfortunately - only works for the whole subview, which means that the included page is getting refreshed. Because the f:subview component does not support PR, you need to work with a wrapping ADF Faces container, like af:panelGroup ...".
But, it looks like such partial page rendering in a subview can be done without a specific "wrapping ADF Faces container" like this ...
        <h:form id="firstPPRPageFormID">
          <af:panelPage title="firstPPRPage">
            <af:panelHeader text="components on firstPPRPage">
              <af:panelForm>
                <af:panelLabelAndMessage label="dateUtil.currentDateAsString, with partial trigger">
                  <af:outputText value="#{dateUtil.currentDateAsString}"
                                 partialTriggers="firstSubviewID:firstSubviewCButton"/>
                </af:panelLabelAndMessage>
                <af:panelLabelAndMessage label="dateUtil.currentDateAsString">
                  <af:outputText value="#{dateUtil.currentDateAsString}"/>
                </af:panelLabelAndMessage>
                <f:facet name="footer">
                  <af:commandButton text="firstPPRPage button"
                                    id="firstPPRPageCButton"
                                    partialSubmit="true"/>
                </f:facet>
              </af:panelForm>
            </af:panelHeader>
            <f:subview id="firstSubviewID">
              <jsp:include page="/firstSubview.jspx" flush="true"/>
            </f:subview>
          </af:panelPage>
        </h:form>... and where firstSubview.jspx contains something like this ...
<af:panelHeader text="components on firstSubview">
    <af:panelForm>
      <af:panelLabelAndMessage label="dateUtil.currentDateAsString, with partial trigger">
        <af:outputText value="#{dateUtil.currentDateAsString}"
                       partialTriggers=":firstPPRPageFormID:firstPPRPageCButton"/>
      </af:panelLabelAndMessage>
      <af:panelLabelAndMessage label="dateUtil.currentDateAsString">
        <af:outputText value="#{dateUtil.currentDateAsString}"/>
      </af:panelLabelAndMessage>
      <f:facet name="footer">
        <af:commandButton text="firstSubview button" id="firstSubviewCButton"
                          partialSubmit="true"/>
      </f:facet>
    </af:panelForm>
</af:panelHeader>Note the value ":firstPPRPageFormID:firstPPRPageCButton" for the partialTriggers attribute.
see http://verveja.footsteps.be/~verveja/files/oracle/PartialPageRenderingInSubview-v0.01.zip (check README.txt)
questions:
(1) Why exactly does this approach seem to work?
(2) Because of question (1), what could be potential issues with this approach?
regards
Jan Vervecken

Jan,
good job ! I actually never thought of reversing what I said about PPR'ing a component from a subview.
Actually
partialTriggers=":firstPPRPageFormID:firstPPRPageCButton"/>
works because the leading ":" makes ADF Faces to start the component search from the root container. Note that if you use af:form instead of h:form, the trigger is
partialTriggers=":firstPPRPageCButton"/>
I'll update my blog
Frank

Oracle Apex partial page refresh problem in IE

Hi All,
I'm using a button to refresh a region by enabling ppr .
On click of the button , m redirecting to url and the url target is as follows
javascript:jQuery('#VH_SCROLL_EMP88').trigger('apexrefresh');
Its working fine in firefox and chrome but not in internet explorer. When I click the button in IE I just get the following
[object Object] in the page
When I click back button of browser I'm getting the original page
Please help me to understand and rectify this
Regards
Sasidharan

a) What version of IE are you using, this probably factors greatly in this question
b) If you want to partially page refresh a region, it looks like you're using a sledgehammer when all you need is your clicking finger
- can you create a dynamic action for your button that applies a 'refresh' action to your selected region

Printer will print only partial page

I have a HP all in one printer C6250. Sometimes but not always it will print only a partial part of a page or just select information. For instance, I tried to print out a request form for an absentee ballot and it printed only the bottom part of the page. All the print on the page was the same.
The day before, I printed out some concert tickets and airline tickets (in color) and they printed fine.
Last week, I tried to print a rebate form and only parts of the form printed (mainly the top part).
I have the latest drivers as I ran a test and all ink cartridges are full. I have to admit that I don't have all HP cartridges but the black one is an original one.
I also ran a print test page today and only the header printed with some partial character marks under.
I have windows vista operating system.

My HP C6380 printer only prints a partial page in Excel or Publisher. All others print fine. K

Clear page cache every time page is opened

I have a menu page in Apex that points to 10 report pages. However each page retains the values in parameters. How can I clear the page cache every time I go from menu to individual report page? I see the CLEAR_PAGE_CACHE procedure but don't know where to place the call. I guess I haven't understood the event model of the Apex completely yet (I am from the Oracle Forms background).
Jay

Jay,
You don't say how these links on the menu page are constructed. If you are using an apex list then for each list entry there would be a target page section in which you would put the target page ID in the Clear Cache field. For example, if the link goes to a page in the current application, say page 10, then you'd put 10 in the Clear Cache field.
If you are building a link yourself, just put 10 (for page 10) in the clear-cache position of the f?p URL, e.g.,
f?p=&APP_ID.:10:&APP_SESSION.::NO:10:P10_ITEM:&SOME_ITEM.
Scott

Global error page - compatible with partial page rendering

My global error page doesn't show in some isolated cases. Could this be because of partial page rendering? What changes might be needed to have it work in all cases?
I have created a global error page and set it in the web.xml with:
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>pages/htmlErrorPage.html</location>
</error-page>
This displays the htmlErrorPage when errors occur in nearly all my tested cases. However, when the test error is created inside one page redraw I find that the application dies without ever displaying my error page. On the console I get an error message that starts with:
Jun 13, 2008 12:54:11 PM oracle.adfinternal.view.faces.renderkit.core.xhtml.PanelPartialRootRenderer encodeAll
SEVERE: Error during partial-page rendering
javax.faces.el.EvaluationException: javax.faces.FacesException: javax.faces.FacesException: Can't instantiate class: 'com.softrek.adf.view.managed.JFreeChartPlotter'.. class com.softrek.adf.view.managed.JFreeChartPlotter : java.lang.NullPointerException
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:190)
at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:143)
But my error page doesn' t show up. I've used the identical test error in most other parts of my application and it shows - so other than the partial page rendering going on, I can't see why this case would be different.
Is there any known bug (or feature) about the use of an error page during partial page rendering?
Any ideas will be welcome.

I'm unclear on how I would get the error to redirect.
I've changed my web.xml to go to a servlet of my creation, set up the mapping and all.
It works fine for exceptions generated in a backing bean normally.
When the exception occurs as part of partial page rendering the error servlet is not called and the user's session dies.
This is being done in JDeveloper 10.1.3.3
The new web.xml contains:
<error-page>
<exception-type>java.lang.Throwable</exception-type>
<location>/servlet/errorAction</location>
</error-page>
Which is working for errors generated under most circumstances but not when they are inside my partial page change.
How do I get errors to go to my error page when the error occurred during PPR?
PS. Using the PartialPageUtils.isPartialRequest() method generated a recursive error in my error servlet. This looks like the known limitation for Faces error handling.

How to use Partial Page Navigation

according to Web User Interface Developer's Guide for Oracle Application Development Framework section 7.4.1 How to Use Partial Page Navigation,
I set 'oracle.adf.view.rich.pprNavigation.OPTIONS' to 'on' in the web.xml.
and in the jspx, I use af:commandNavigationItem to navigation and set the tag 'partialSubmit' attribute to true.
But it does not work. does anybody know how to use this feature?

Hi,
the question is "what does not work". Partial Page Navigation is there to improve performance on page navigation. So if you navigate from page1 using a navigation case to end up at page 2 then the outcome of the command action's action property should match the navigation case name.
Frank

Partial Page Caching in 902

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