jsf 2 - refresh lazy loaded Primefaces datatable when a method performs an update -

when update data in database jdbc method, persisted primefaces datatable doesn't refreshed. refreshing page doesn't show change either change seen when server restarted , init has been called again. there way make primefaces refresh it's datatable content after persist data using jdbc method?

note: jdbc method different managed bean add/update/delete database entity.

i hope question clear enough.

here datatable:

<p:datatable value="#{warehousemanagedbean.lazymodel}"  var="showstock" widgetvar="warehousetable" rows="10"  rowsperpagetemplate="20,30,50"  paginator="true"  lazy="true" paginatortemplate="{currentpagereport}  {firstpagelink} {previouspagelink} {pagelinks} {nextpagelink} {lastpagelink} {rowsperpagedropdown}">               <p:column headertext="raw material" sortby="#{showstock.rwcode}" filterby="#{showstock.rwcode}" filterstyle="display:none; visibility:hidden;">  <h:outputtext value="#{showstock.rwcode}"/> </p:column> <p:column headertext="stock balance">                                          <h:outputtext value="#{showstock.quantity}"/> </p:column> <p:column headertext="cost">                                         <h:outputtext value="#{showstock.cost}"/> </p:column> <p:column headertext="value">                                          <h:outputtext value="#{showstock.stockvalue}"><f:convertnumber type="currency" currencysymbol="$"/></h:outputtext> </p:column> <p:column rendered="false">                                          <h:outputtext value="#{showstock.stockid}"/> </p:column> </p:datatable> 

here jdbc method(if needed)

public void updatewarehouse(double stockbalance, int id) throws sqlexception{ conman = new premierconnection(); string sql = "update warehouse set quantity = ? stockid = ?"; connection conn = null; preparedstatement stm = null;  try {     conn = conman.getdbconnection();     stm = conn.preparestatement(sql);     stm.setdouble(1, stockbalance);     stm.setint(2, id);     stm.executeupdate();             } catch (sqlexception e) {         system.out.println(e.getmessage());     } {         if (stm != null) {             stm.close();         }         if (conn != null) {             conn.close();         }     } } 

update: warehousemanagedbean

@named(value = "warehousemanagedbean") @viewscoped public class warehousemanagedbean implements serializable{      private lazydatamodel<warehouse> lazymodel;         private warehouse stock = new warehouse();      @ejb     private warehouseejb ejb;      @postconstruct     public void init(){         lazymodel = new lazywarehousedatamodel(ejb);     }          public string newstock(){         try {             stock = ejb.create(stock);             jsfutil.addsuccessmessage("stock created successfully");         } catch (ejbexception e){             jsfutil.adderrormessage("raw material exists");             return "addstock.xhtml";         } catch (exception e) {                 logger.getlogger(warehousemanagedbean.class.getname()).log(level.severe, "error creating new stock", e);                     }         return "warehouse.xhtml";     }      public string newnextstock(){         try {             stock = ejb.create(stock);             jsfutil.addsuccessmessage("stock created successfully");                     } catch (ejbexception e){             jsfutil.adderrormessage("raw material exists");         } catch (exception e) {                 logger.getlogger(warehousemanagedbean.class.getname()).log(level.severe, "error creating new stock", e);                     }         return "addstock.xhtml";     }      public string savestock(){         try {             ejb.edit(stock);             jsfutil.addsuccessmessage("stock updated successfully");         } catch (ejbexception e){             jsfutil.adderrormessage("error updating stock");             return "editstock.xhtml";         } catch (exception e) {                 logger.getlogger(warehousemanagedbean.class.getname()).log(level.severe, "error updating stock", e);                     }         return "warehouse.xhtml";     }      public void deletestock(warehouse stock){         try {             ejb.remove(stock);             jsfutil.addsuccessmessage("stock deleted successfully");                     } catch (ejbexception e){             jsfutil.adderrormessage("error deleting stock");         }catch (exception e) {                 logger.getlogger(warehousemanagedbean.class.getname()).log(level.severe, "error deleting stock", e);                     }     }      public warehouse getstock() {         return stock;     }      public list<warehouse> getwarehouselist() {         return warehouselist;     }      public lazydatamodel<warehouse> getlazymodel() {         return lazymodel;     }      } 

the problem lazymodel still has old data after update database. try calling init() again after update stock (is savestock()?), , of course should update <p:datatable> component after action finished (if not set up, add datatable's id update attribute of button calling savestock()).