Hello,

recently I have encountered a problem in using the extendedDataTable of RichFaces 3.3.3.Final.

My code:

<rich:extendedDataTable sortMode="multi" selectionMode="multi" value="#{BackingBean.dataList}" selection="BackingBean.selection" var="entry">
     <rich:column>
          #{entry.date}
     </rich:column>
     <rich:column>
          #{entry.department}
     </rich:column>
     <f:facet name="footer">
          <rich:dataScroller renderIfSinglePage="false">
     </f:facet>
     <a4j:support event="onselectionchange" action="#{BackingBean.takeSelection}" ajaxSingle="true" ignoreDupResponses="true"/>
</rich:extendedDataTable>

The problem is that the table contains currently about 14.000 entries. When a submit is performed because of selection it takes very long (about 15 seconds) until the method "takeSelection" will be called. I have no idea why this is so. The objects are relatively small (they contain only some strings and a date). I have no explanation why it takes so long until finally the action method is called. Can someone please give me a hint?

EDIT:

I found the source of the problem, but still no suitable solution. I also had filtering enabled on the columns:

<rich:column headerClass="extdt-header"
                    sortBy="#{entry.date}"
                    filterBy="#{entry.date}">
     #{entry.date}
</rich:column>

Is the filtering always perfomed on every entry even if just the selection changes?? Or is there a possibility to make the whole thing faster even with large number of data in the table?