table not showing data when uses pagintion - jsf-2

Question

I have a from like this
<h:form id="logForm" prependId="false">
<div class="leftcol">
....
<h:commandButton value="Apply Filters"
action="#{exporterReview.applyFilterAction}">
</h:commandButton><br></br><br></br>
....
</div>
<div class="rightcol1" >
<p:dataTable var="exporter"
value="#{exporterReview.exporters}"
paginator="true" rows="5"
height="400" paginatorPosition="top"
emptyMessage="#{exporterReview.noExporterFound}">
<p:column>
<div style="....">
<h:graphicImage value="#{exporter.imgPath}" />
</div>
<div style="...">
<h:commandButton value="Update"
action="#{exporterReview.updateExporter}"
rendered="#{login.updateState}"
style="... ">
<f:param name="exporterid"
value="#{exporter.exporterId}" />
</h:commandButton>
</div>
<div class="arrowbuttons">
<span class="arrow"></span>
</div>
<p:spacer height="10" width="20"/>
<h:commandButton value="#{exporter.organizationName}"
action="#{exporterReview.viewExporter}"
style="...">
<f:param name="exporterid" value="#{exporter.exporterId}" />
<f:param name="disableLink" value="#{exporter.disableLink}" />
</h:commandButton>
<div style='padding-top:10px'>
<h:outputLabel value="City: " style="color: #1c6ace;"/>
<h:panelGroup rendered="#{not exporter.disableLink}">
<h:commandLink value="#{exporter.cityName}"
style="text-decoration: underline"
disabled="#{exporter.disableLink}"
onclick="openCityPopup(#{exporter.cityId});" >
</h:commandLink>
</h:panelGroup>
<h:panelGroup rendered="#{exporter.disableLink}">
<h:outputText value="#{exporter.cityName}"></h:outputText>
</h:panelGroup>
</div>
<div style='padding-top:3px'>
<h:outputLabel value="Email Address: " style="color: #1c6ace;"/>
<a href="mailto:#{exporter.emailAddress}">
<h:outputText value="#{exporter.emailAddress}"
style="..">
</h:outputText>
</a>
</div>
<div style='padding-top:3px'>
<h:outputText value="#{exporter.categoryDesc}"
escape="false" />
</div>
<div class="horizontalline"></div>
</p:column>
</p:dataTable>
</div>
</h:form>
Here is the filter method
public void applyFilterAction() {
....
//Setting whereParam so that whenever user navigate from page And return back
// the grid is populated with the previous search criteria
session.setAttribute("settingWhereParam", whereParam);
getExporterGrid();
} //end of applyFilterAction
private void getExporterGrid() {
....
exporters.add(new Exporter(Datatable values));
} //end of getExporterGrid
The problem is when i am on first page and do the search then every thing works fine. Here is the first picture.
Then if i apply search then it becomes
But if i do pagination , say go to page 4 and then apply the search then no result shows
But then nothing show
Why it is happening? What i am doing wrong ? I am using Prime faces 2.2. Its an old program.
Thank you

Answer 1

I'm not sure if this will work in primefaces 2.2, but in version 3+, you can specify an update attribute.
Your commandButton would look like this:
<h:commandButton value="Apply Filters" action="#{exporterReview.applyFilterAction}" update="#form">

Answer 2

I did it :). Actually i did a workaround. What i did, i used onClick event on my filter Button. Like
<h:commandButton id="filterButton"
value="Apply Filters"
style=""
action="#{exporterReview.applyFilterAction}"
onclick="filterButtonClick(event)" />
Now when button is clicked, then first my client side code will run. So i get all the values and then using ajax call the servlet, and save the result in session object. After that my server side code will run, and my action method invoked, in which i simple return the url of the same page.
public String applyFilterAction() {
return "Exporter_Review?faces-redirect=true";
} //end of applyFilterAction()
Now when page invoke i simply check for the result in the session. And if session object present then simply get the values from that object and shows the result. And when i leave the page i simply put null in the session against object, now default is used. Now everything is working fine :)