java - instead of arrayCollection -

i trying return values java flex front end using blazeds.successfully blazeds connecting while retrieving values showing [object asynvtoken] not getting values java method.

my flex code is:

<fx:script>         <![cdata[             import mx.collections.arraycollection;             import mx.controls.alert;             import mx.rpc.asynctoken;             import mx.rpc.events.faultevent;             import mx.rpc.events.resultevent;              public function get_user():void             {                 var token:asynctoken = ro.getoperation('getuser').send();                 user_grid.dataprovider = token.tostring();                 alert.show(user_grid.dataprovider.tostring());             }             private function fault(e:faultevent):void             {                 alert.show("code:\n" + e.fault.faultcode  + "\n\nmessage:\n" + e.fault.faultstring + "\n\ndetail:\n" + e.fault.faultdetail);             }             private function result(e:resultevent):void             {                 userbtn.visible = false;                 lnkbtn.visible = true;             }         ]]>     </fx:script>      <fx:declarations>         <!-- place non-visual elements (e.g., services, value objects) here -->         <s:remoteobject id="ro"                         source="com.freelancer.getuser"                         fault="fault(event)"                         destination="blazedsservice">             <s:method name="getuser"                       result="result(event)"/>         </s:remoteobject>     </fx:declarations>          <mx:datagrid id="user_grid" x="-1" y="-1" width="705" height="356">             <mx:columns>                 <mx:datagridcolumn headertext="id" datafield="id"/>                 <mx:datagridcolumn headertext="name" datafield="name"/>                 <mx:datagridcolumn headertext="password" datafield="pwd"/>             </mx:columns>         </mx:datagrid>            <s:button x="322" y="429" id="userbtn" label="get user" width="98"                height="23" cornerradius="10" click="get_user()"/>     <mx:linkbutton x="331" y="429" id="lnkbtn" visible="false" label="connected please wait loading . . ."/> 

my java code is:

public class getuser {     public static void main(string[] argv)      {         system.out.println("-------- postgresql " +                 "jdbc connection testing ----------");         getuser();     }     public static list<user> getuser()     {          list<user> ls=new arraylist<user>();             string host = "test";             string port = "1234";             string dbname = "test";         connection connection = null;         try          {             connection = drivermanager.getconnection(                     "jdbc:postgresql://" + host + ":" + port + "/" + dbname,"user", "user");              system.out.println("database connected");               string strsql = "select * test";          statement st = connection.createstatement();          resultset rs=st.executequery(strsql);          system.out.println("hi,query executed");          while(rs.next())          {              user user = new user();              user.setid(rs.getint("id"));              user.setname(rs.getstring("name"));              user.setpwd(rs.getstring("pwd"));              ls.add(user);          }         }         catch(exception e)         {             system.out.println();         }                 {             try             {                 connection.close();             }             catch (exception ignored)              {              }         }          return ls;     } } 

please me if knows solution.

keep in mind calls rpc services asynchronous.

at first call remote function getuser. request send server , getoperation function returns immediatly. result of call asynctoken object not result of call of getuser. token part of asynchronous completion token design pattern. after rpc function returns client response in result handler declared result function. result part of resultevent parameter.

so following should work:

    public function get_user():void     {         var token:asynctoken = ro.getoperation('getuser').send();     }      private function result(e:resultevent):void     {         user_grid.dataprovider = e.result;              userbtn.visible = false;         lnkbtn.visible = true;     }