jsf - Update a bar chart with a select one menu -


i want display bar chart according item have selectionned.

<h:outputtext value="document: " /> <h:selectonemenu value="#{chartbean.document}" converter="#{documentconverter}" required="true">      <f:selectitems value="#{chartbean.listselectitemdocument}"/>      <p:ajax event="change" update="barchart" immediate="true"/> </h:selectonemenu>    <p:barchart id="barchart" value="#{chartbean.categorymodel}"       title="interactive bar chart" style="height:300px" min="0" >    <p:ajax event="itemselect" listener="#{chartbean.itemselectbar}" update="growl" />   </p:barchart>

i work primeface library.

public cartesianchartmodel getcategorymodel() {     createcategorymodel();     return categorymodel;   }   private void createcategorymodel() {       categorymodel = new cartesianchartmodel();     chartseries dled = new chartseries();     if(mdocument!=null)     {         dled.setlabel("dled");         list<date> listdate = muserdocumentmanger.listdate(mdocument);         calendar calendar = new gregoriancalendar();         for(date ldate : listdate)         {             calendar.settime(ldate);             dled.set(date,number);         }            categorymodel.addseries(dled);       }     }

when choose item of list, nothing happened ... helping me.

thanks helps

the solution create equal method in class document


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