it does..
igor.vaynberg wrote:
>
> this is how java works.
>
> look
> public class Foo {
> public void foo() {
> final OutputStream out=System.out;
> Link link=new Link("link") { public protected void onclick() {
> out.println("clicked"); }}
> serialize(link);
> }}
>
> what happens in serialize() ?
>
> Link is an anonymous class so it automatically has an implicit
> reference to instance of Foo on which you called foo(); it also has an
> implicit reference to any final variables you used inside the
> anonymous class - it is allowed to do this because you declared the
> variable as final - meaning its reference doesnt change and so the
> anon class is free to store that reference in its internal state.
>
> so when you serialize link you will also serialize the outside
> instance of Foo and the final variable out.
>
> if this didnt happen (link doesnt store out) and you serialize and
> deserialize link and call onclick() what does the out inside onclick
> now point to? nothing?
>
> makes sense?
>
> -igor
>
>
> On Dec 16, 2007 6:41 PM, <[EMAIL PROTECTED]> wrote:
>> Thanks for the followup Igor, i appreciate it....
>>
>> But your point regarding the anonymous classes working makes sense for
>> the form itself which would become an instance of the LoginPanel BUT i
>> still don't understand loginServiceHandler is being serialized..i mean
>> its not an instance within that form, its just being as a parameter (and
>> is rather a local variable)..
>>
>> Thanks again and Regards,
>>
>> Farhan.
>>
>> igor.vaynberg wrote:
>> >
>> > On Dec 14, 2007 9:54 AM, mfs <[EMAIL PROTECTED]> wrote:
>> >>
>> >> hmm..but should it do that?...its not an instance within the form, i
>> mean
>> >> we'll be invoking the service layer from within the form.onsubmit
>> (most
>> >> of
>> >> the times) event, and that would require all the service or other
>> classes
>> >> invoked to be made serializable..
>> >
>> > yes it should. this is how anonymous classes work.
>> >
>> >> Whats the work around, i wouldnt want the service class (or perhaps
>> any
>> >> other class) be made serializable without a reason..
>> >
>> > the work around is to pass in a locator that can be serialized without
>> > serializing the dependency yet knows how to look it up when it is
>> > needed. kinda like a serializable lookup. this is what wicket's
>> > @SpringBean proxies do. the other option is to have that service
>> > available via a static lookup.
>> >
>> > -igor
>> >
>> >
>> >>
>> >>
>> >> Thanks in advance
>> >>
>> >>
>> >>
>> >> igor.vaynberg wrote:
>> >> >
>> >> > your form anonymous class keeps the ref to your login svc instance
>> >> >
>> >> > -igor
>> >> >
>> >> > On 12/13/07, mfs <[EMAIL PROTECTED]> wrote:
>> >> >>
>> >> >> Ok...so here is the LoginPanel class...with the constructor i was
>> >> >> referring
>> >> >> to .. further the implementation for I_LoginService (i.e.
>> >> >> LoginService...on
>> >> >> which the serializable error is pointing to) is being passed over
>> from
>> >> >> the
>> >> >> caller component...
>> >> >>
>> >> >>
>> >> >> public class LoginPanel extends Panel {
>> >> >>
>> >> >> LoginVO loginVO = null;
>> >> >>
>> >> >> public LoginPanel(String id, final String targetPage, final
>> >> >> I_LoginService
>> >> >> loginServiceHandler) {
>> >> >> super(id);
>> >> >> loginVO = new LoginVO();
>> >> >> setModel(new CompoundPropertyModel(loginVO));
>> >> >>
>> >> >> Form loginForm = new Form("loginForm") {
>> >> >> protected void onSubmit() {
>> >> >>
>> >> loginServiceHandler.authenticate(loginVO.getUserName(),
>> >> >> loginVO.getPassword());
>> >> >> }
>> >> >> };
>> >> >>
>> >> >> loginForm.add(new RequiredTextField("userName"));
>> >> >> loginForm.add(new PasswordTextField("password"));
>> >> >>
>> >> >> Button loginButton = new Button("loginButton") {
>> >> >> public void onSubmit() {
>> >> >> }
>> >> >> };
>> >> >>
>> >> >> loginForm.add(loginButton);
>> >> >> add(loginForm);
>> >> >>
>> >> >> }
>> >> >>
>> >> >>
>> >> >>
>> >> >> mfs wrote:
>> >> >> >
>> >> >> > Guys,
>> >> >> >
>> >> >> > Not sure why, but wicket is giving me an error "Field that is not
>> >> >> > serializable" on one of constructor attributes (of a panel) which
>> is
>> >> an
>> >> >> > implementation to an interface...i wonder why is that ? The
>> >> attribute
>> >> >> is
>> >> >> > not used as a model or anything its just a serviceHandler which i
>> am
>> >> >> > passing to the page-component.
>> >> >> >
>> >> >> > Error log
>> >> >> > ----
>> >> >> >
>> >> >> > private final org.xyz.login.api.I_LoginService
>> >> >> > org.xyz.login.web.LoginPane
>> >> >> > l$1.val$loginServiceHandler [class=org.xyz.service.LoginService]
>> >> <-----
>> >> >> > field that is
>> >> >> > not serializable
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:347)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:615)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:538)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:393)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:615)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:538)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:393)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.checkFields(SerializableChecker.java:615)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.check(SerializableChecker.java:538)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.SerializableChecker.writeObjectOverride(SerializableChecker.jav
>> >> >> > a:683)
>> >> >> > at
>> >> >> >
>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:298)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.IObjectStreamFactory$1.writeObjectOverride(IObjectStreamFactory
>> >> >> > .java:74)
>> >> >> > at
>> >> >> >
>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:298)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.lang.Objects.objectToByteArray(Objects.java:1103)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.pagestore.AbstractPageStore.serializePage(AbstractPageSto
>> >> >> > re.java:200)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.pagestore.DiskPageStore.storePage(DiskPageStore.java:700)
>> >> >> >
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.SecondLevelCacheSessionStore$SecondLevelCachePageMap.put(
>> >> >> > SecondLevelCacheSessionStore.java:340)
>> >> >> > at
>> >> org.apache.wicket.Session.requestDetached(Session.java:1412)
>> >> >> > at
>> >> org.apache.wicket.RequestCycle.detach(RequestCycle.java:957)
>> >> >> > at
>> >> org.apache.wicket.RequestCycle.steps(RequestCycle.java:1195)
>> >> >> > at
>> >> >> org.apache.wicket.RequestCycle.request(RequestCycle.java:500)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:261)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:126)
>> >> >> > at
>> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
>> >> >> > at
>> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j
>> >> >> > ava:290)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>> >> >> >
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.ha.tcp.ReplicationValve.invoke(ReplicationValve.java:347)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.ha.session.JvmRouteBinderValve.invoke(JvmRouteBinderValve.java:209)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.ja
>> >> >> > va:581)
>> >> >> > at
>> >> >> >
>> >>
>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
>> >> >> > at java.lang.Thread.run(Thread.java:595)
>> >> >> > Caused by: java.io.NotSerializableException:
>> >> >> > taxcient.registration.service.LoginService
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
>> >> >> > at
>> >> >> >
>> java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1251)
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
>> >> >> > at
>> >> >> >
>> java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1251)
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1075)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1347)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1290)
>> >> >> > at
>> >> >> >
>> >> java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1079)
>> >> >> > at
>> >> >> >
>> java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:302)
>> >> >> > at
>> >> >> >
>> >> >>
>> >>
>> org.apache.wicket.util.io.IObjectStreamFactory$1.writeObjectOverride(IObjectStreamFactory
>> >> >> >
>> >> >>
>> >> >> --
>> >> >> View this message in context:
>> >> >>
>> >>
>> http://www.nabble.com/Getting-Error-%22Field-not-serializable%22-on-one-of-the-constructor-attrib---tp14327323p14328035.html
>> >> >> Sent from the Wicket - User mailing list archive at Nabble.com.
>> >> >>
>> >> >>
>> >> >>
>> ---------------------------------------------------------------------
>> >> >> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> >> >> For additional commands, e-mail: [EMAIL PROTECTED]
>> >> >>
>> >> >>
>> >> >
>> >> >
>> ---------------------------------------------------------------------
>> >> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> >> > For additional commands, e-mail: [EMAIL PROTECTED]
>> >> >
>> >> >
>> >> >
>> >>
>> >> --
>> >> View this message in context:
>> >>
>> http://www.nabble.com/Getting-Error-%22Field-not-serializable%22-on-one-of-the-constructor-attrib---tp14327323p14339719.html
>> >>
>> >> Sent from the Wicket - User mailing list archive at Nabble.com.
>> >>
>> >>
>> >> ---------------------------------------------------------------------
>> >> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> >> For additional commands, e-mail: [EMAIL PROTECTED]
>> >>
>> >>
>> >
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> > For additional commands, e-mail: [EMAIL PROTECTED]
>> >
>> >
>> >
>> Quoted from:
>> http://www.nabble.com/Getting-Error-%22Field-not-serializable%22-on-one-of-the-constructor-attrib---tp14327323p14341143.html
>>
>>
>
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>
>
>
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