Thanks for your reply. The problem was thet I was
referring to a label field id in a new state without
setting the currentState to the new state.
Thanks,
Aejaz
--- In flexcoders@yahoogroups.com, "Steven Toth" <[EMAIL PROTECTED]> wrote:
>
> It seems as though the result of your call is null, hence the
> event.result.toString() call in your getNameHandler() is generating
> a "NullPointerException".
>
> Do you see a value in the Tomcat console from the System.out call in
> your SimpleRemoteObject class?
>
> --- In flexcoders@yahoogroups.com, "aejaz_98" <aejaz_98@> wrote:
> >
> > Hi Steven,
> >
> > Thanks a lot for your reply. I recompiled the swf again &
> > in the Tomcat console I could see that the method on my class
> > was being called. So, thing that made this whole thing work
> > was,
> >
> > Matt's advice to change the endpoint URI to
> > http://localhost:8080/flex/messagebroker/amf
> >
> > &
> >
> > recompilation of the swf after it.
> >
> > However on the browser side I am seeing this error in a new window,
> >
> > An ActionScript error has occurred,
> > TypeError: Error #1009: null has no properties.
> > at SimpleRemoteObject/::getNameHandler()
> > at SimpleRemoteObject/___Operation1_result()
> > at flash.events::EventDispatcher/dispatchEvent()
> > at
> >
> mx.rpc::AbstractOperation/http://www.adobe.com/2006/flex/mx/internal::
> dispatchRpcEvent()
> > at
> >
> mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::re
> sultHandler()
> > at flash.events::EventDispatcher/dispatchEvent()
> > at mx.rpc::Producer/acknowledge()
> > at
> > ::NetConnectionMessageResponder/NetConnectionChannel.as$36:NetConnec
> tionMessageResponder::handleResult()
> > at mx.messaging::MessageResponder/result()
> >
> > Any clues ?
> >
> > Thanks,
> > Aejaz
> >
> > --- In flexcoders@yahoogroups.com, "Steven Toth" <steventoth@>
> wrote:
> > >
> > > Did you recompile the SWF after changing the endpoint URI?
> > >
> > > --- In flexcoders@yahoogroups.com, "aejaz_98" <aejaz_98@> wrote:
> > > >
> > > > Hi Matt,
> > > >
> > > > Thanks for your reply. Yes, I am running the SWF using the URL
> > > >
> > >
> http://localhost:8080/flex/SimpleRemoteObject/SimpleRemoteObject.html
> > > >
> > > > I also changed the channel endpoint URI from
> > > > http://{server.name}:{server.port}/
> {context.root}/messagebroker/amf
> > > > to
> > > > http://localhost:8080/flex/messagebroker/amf
> > > > but I still get the same result i.e. Channel.Connect.Failed
> error.
> > > > NetConnection.Call.Failed error:HTTP:Failed .
> > > >
> > > > Please let me know what else could be missin/misconfigured.
> > > >
> > > > Thanks,
> > > > Aejaz
> > > >
> > > > --- In flexcoders@yahoogroups.com, "Matt Chotin" <mchotin@>
> wrote:
> > > > >
> > > > > Are you running the SWF from http://localhost:8080/flex/ in
> your
> > > > > browser? Everything seems OK to me otherwise. Try changing
> the
> > > my-am
> > > > > channel entry to
> http://localhost:8080/flex/messagebroker/amf,
> > > but you
> > > > > shouldn't have needed to do it.
> > > > >
> > > > >
> > > > >
> > > > > Matt
> > > > >
> > > > >
> > > > >
> > > > > ________________________________
> > > > >
> > > > > From: flexcoders@yahoogroups.com
> > > [mailto:[EMAIL PROTECTED] On
> > > > > Behalf Of aejaz_98
> > > > > Sent: Tuesday, April 25, 2006 10:47 PM
> > > > > To: flexcoders@yahoogroups.com
> > > > > Subject: [flexcoders] (Flex20b2) RemoteObject access problem
> > > > >
> > > > >
> > > > >
> > > > > Hi,
> > > > >
> > > > > I have posted a couple of messages on calling a method on a
> Java
> > > object
> > > > > using <mx:RemoteObject> tag but so far I haven't been
> successful.
> > > With
> > > > > help from Peter & Suresh I did proceed a little bit further
> but I
> > > am
> > > > > still unable to successfully call the method on the server
> side
> > > object.
> > > > > Since I described the problem in bits & pieces before, I
> think
> > > that I
> > > > > may have missed some step(s) which I don't know about. Here
> is
> > > what I
> > > > > have done step by step. Please let me know if I am doing
> anything
> > > wrong
> > > > > or not doing something.
> > > > >
> > > > > Basically what I wanted to do was to verify the connectivity
> from
> > > the
> > > > > browser side to a simple Java class on the back end using
> > > RemoteObject
> > > > > tag before doing anything major. To do this I take a (String)
> > > name from
> > > > > a TextInput field which is sent to the getString() method of
> the
> > > class
> > > > > called Echo which appends "Welcome " to the incoming String &
> > > returns it
> > > > > back. This is displayed by the state 'TargetState'.
> > > > >
> > > > > 1. Here is the mxml file named SimpleRemoteObject.mxml.
> Please
> > > take a
> > > > > look at my ActionScript methods as I am new to ActionScript
> as
> > > well.
> > > > >
> > > > > <?xml version="1.0" encoding="utf-8"?>
> > > > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
> > > xmlns="*"
> > > > > layout="absolute">
> > > > > <mx:TraceTarget level="0" />
> > > > > <mx:Script>
> > > > > <![CDATA[
> > > > > import mx.rpc.events.*;
> > > > > import mx.collections.*;
> > > > > import mx.controls.*
> > > > >
> > > > > private function getNameHandler
> (event:ResultEvent):void
> > > > > {
> > > > > Result.text = event.result.toString();
> > > > > currentState='TargetState';
> > > > > }
> > > > >
> > > > > private function faultHandler(event:FaultEvent):void
> > > > > {
> > > > > Alert.show(event.fault.faultstring, "Error");
> > > > > Alert.show(event.fault.faultDetail, "Error");
> > > > > }
> > > > > ]]>
> > > > > </mx:Script>
> > > > > <mx:states>
> > > > > <mx:State name="TargetState">
> > > > > <mx:RemoveChild child="{button1}"/>
> > > > > <mx:RemoveChild child="{formInput}"/>
> > > > > <mx:RemoveChild child="{label1}"/>
> > > > > <mx:AddChild position="lastChild">
> > > > > <mx:Label x="99" y="130" width="265"
> height="28"
> > > > > id="Result"/>
> > > > > </mx:AddChild>
> > > > > </mx:State>
> > > > > </mx:states>
> > > > >
> > > > > <mx:RemoteObject id="sendStringBack"
> destination="EchoString"
> > > > > showBusyCursor="true" fault="faultHandler(event)">
> > > > > <mx:method name="getString" result="getNameHandler
> > > (event)">
> > > > > <mx:arguments>
> > > > > <str>
> > > > > {formInput.text}
> > > > > </str>
> > > > > </mx:arguments>
> > > > > </mx:method>
> > > > > </mx:RemoteObject>
> > > > > <mx:TextInput x="119" y="129" id="formInput"/>
> > > > > <mx:Button x="119" y="170" label="Submit" fontSize="13"
> > > id="button1"
> > > > > click="sendStringBack.getString.send()"/>
> > > > > <mx:Label x="119" y="86" text="What is your name ?"
> > > width="160"
> > > > > fontSize="15" id="label1"/>
> > > > > </mx:Application>
> > > > >
> > > > > For this project I defined the Flex root folder at
> > > > > C:\tomcat-5.5.9\webapps\flex & flex server URL to
> > > > > http://localhost:8080/flex/.
> > > > >
> > > > > 2. Defined the destination EchoString in
> > > > > C:\tomcat-5.5.9\webapps\flex\WEB-INF\flex\flex-remoting-
> > > service.xml as
> > > > > follows,
> > > > >
> > > > > <adapters>
> > > > > <adapter-definition id="java-object"
> > > > > class="flex.messaging.services.remoting.adapters.JavaAdapter"
> > > > > default="true"/>
> > > > > </adapters>
> > > > >
> > > > > <default-channels>
> > > > > <channel ref="my-amf"/>
> > > > > </default-channels>
> > > > >
> > > > > <destination id="EchoString">
> > > > > <properties>
> > > > > <source>samples.SimpleRemoteObject.Echo</source>
> > > > > </properties>
> > > > > </destination>
> > > > >
> > > > > 3. Saved the mxml file in Flex Builder which created
> > > > > C:\tomcat-5.5.9\webapps\flex\SimpleRemoteObject directory &
> put
> > > the
> > > > > HTML, SWFs & _javascript_ files in it.
> > > > >
> > > > > 4. Compiled the Java class called Echo.java & put Echo.class
> in
> > > > > C:\tomcat-5.5.9\webapps\flex\WEB-
> > > INF\classes\samples\SimpleRemoteObject.
> > > > >
> > > > > package samples.SimpleRemoteObject;
> > > > > public class Echo {
> > > > > public Echo(){
> > > > > }
> > > > > public String getString(String str){
> > > > > System.out.println("In Echo::getString(), got " +
> str);
> > > > > return "Welcome " + str ;
> > > > > }
> > > > > }
> > > > >
> > > > > 5. Started tomcat & went to,
> > > > >
> > >
> http://localhost:8080/flex/SimpleRemoteObject/SimpleRemoteObject.html
> > > > >
> > > > > 6. First page got painted fine, input a name & clicked
> on 'Submit'
> > > > >
> > > > > 7. I get Channel.Connect.Failed error.
> NetConnection.Call.Failed
> > > > > error:HTTP:Failed in the Alert box.
> > > > >
> > > > > C:\tomcat-5.5.9\webapps\flex\WEB-INF\flex\flex-enterprise-
> > > services.xml
> > > > > has,
> > > > >
> > > > > <channel-definition id="my-amf"
> > > > > class="mx.messaging.channels.AMFChannel">
> > > > > <endpoint
> > > > > uri="http://{server.name}:{server.port}/
> > > {context.root}/messagebroker/amf
> > > > > " class="flex.messaging.endpoints.AMFEndpoint"/>
> > > > > <properties>
> > > > > <polling-enabled>false</polling-enabled>
> > > > > </properties>
> > > > > </channel-definition>
> > > > >
> > > > >
> > > > > Thanks,
> > > > > Aejaz
> > > > >
> > > > >
> > > > > --
> > > > > Flexcoders Mailing List
> > > > > FAQ:
> > > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt
> > > > > Search Archives:
> > > > > http://www.mail-archive.com/flexcoders%40yahoogroups.com
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > ________________________________
> > > > >
> > > > > YAHOO! GROUPS LINKS
> > > > >
> > > > >
> > > > >
> > > > > * Visit your group "flexcoders
> > > > > <http://groups.yahoo.com/group/flexcoders> " on the web.
> > > > >
> > > > > * To unsubscribe from this group, send an email to:
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> > > > >
> > > > >
> > > > >
> > > > > ________________________________
> > > > >
> > > >
> > >
> >
>
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