Table filtering doesn't work with binding

[zelenka]

Hi,

I use table filtering (sample included) which works fine. Problem occurs when I want to use rich:dataTable binding="......". Suddeny filtering (rerendering table) doesn't work and usually duplicate id exception is thrown.

Thanks for help

<rich:column filterExpression="#{ExpediceBean.currentObjektFilterValue eq '' or ExpediceBean.currentObjektFilterValue eq vykaz.vykladka.objekt.nazev}">
     <f:facet name="header">
          <h:selectOneMenu value="#{ExpediceBean.currentObjektFilterValue}">
               <f:selectItems value="#{ExpediceBean.objektFilterItems}"/>
               <a4j:support event="onchange" reRender="table" oncomplete="calculate()"/>
          </h:selectOneMenu>
     </f:facet>
     <h:outputText value="#{vykaz.vykladka.objekt.nazev}"/>
</rich:column>

[nbelaevski]

Hi Pavel,

What is bean scope?

[zelenka]

It's a session bean

[nbelaevski]

Session-scoped binding should not be used for components. Try "request" scope.

[zelenka]

Request scoped works, thanks. May I ask why session scope is problem?

[nbelaevski]

Components are not designed to be put in session scope (not Serializable, single-threaded, this breaks lifecycle logic, etc). JSF specification encourages users not to use session-scoped binding.

[zelenka]

Thanks for explanation.