Could returning null be built in as default behaviour? Since returning a
block from a non-xhr request is an error case, it would save putting checks
throughout the code and I can't see it breaking anything.
Cheers,
Lance.
2008/6/24 Howard Lewis Ship <[EMAIL PROTECTED]>:
> For full graceful degradation, you can inject the Request object can
> check its isXHR() method, then decide on an appropriate return value
> (typically, a Block or null).
>
> On Tue, Jun 24, 2008 at 9:24 AM, Lance Java <[EMAIL PROTECTED]>
> wrote:
> > I have solved the issue, I think I understand what was going wrong.
> > - Tapestry first draws action links as hrefs which cause a page reload
> for
> > graceful degredation
> > - Tapestry javascript magic then goes over all ajax action links and
> changes
> > them to javascript method calls
> > - I had a javascript error which stopped the tapestry javascript magic
> from
> > hapening, thus I was seeing the graceful degredation, thus no XHR's
> >
> > Cheers,
> > Lance.
> >
> > 2008/6/24 Francisco Manzano <[EMAIL PROTECTED]>:
> >
> >> Hi, I am inexperienced in Tapestry, but I had east problem recently:
> >> You have like result a valid xhtml page? You can look for if you have
> >> "scripts of tapestry" inserted at the end of the page.
> >> something like this :
> >> ...
> >> <script src="../../assets/scriptaculous/5.0.13/prototype.js"
> >> type="text/javascript"></script>
> >> <script src="../../assets/scriptaculous/5.0.13/scriptaculous.js"
> >> type="text/javascript"></script>
> >> <script src="../../assets/scriptaculous/5.0.13/effects.js"
> >> type="text/javascript"></script>
> >> <script src="../../assets/tapestry/5.0.13/tapestry.js"
> >> type="text/javascript"></script>
> >> <script type="text/javascript">
> >> <!--
> >> Tapestry.DEBUG_ENABLED = true;
> >> Tapestry.onDOMLoaded(function() {
> >>
> >>
> Tapestry.init({"zone":["zoneToUpdate"],"linkZone":[["theLink4","zoneToUpdate"],["theForm","zoneToUpdate"]]});
> >> });
> >> // -->
> >> </script>
> >> </body>
> >> </html>
> >>
> >> If these scripts are not, you can have this problem., and you can solve
> it
> >> obtaining a valid xhtml like result.
> >>
> >> I hope can help you
> >>
> >> &
> >> DiPegotDeis
> >>
> >>
> >>
> >>
> >> Lance Java wrote:
> >>
> >>> I have an actionlink that returns a block and populates a zone in my
> page
> >>>
> >>> FundGraph.tml
> >>> <t:actionLink t:id="edit" zone="editZone">edit</t:actionLink>
> >>>
> >>> <t:block t:id="editorBlock">...</t:block>
> >>>
> >>> <t:zone t:id="editZone">
> >>> </t:zone>
> >>>
> >>>
> >>> FundGraph.java
> >>> @Inject
> >>> private Block editorBlock;
> >>>
> >>> @OnEvent(value="action", component="edit")
> >>> protected Object onActionFromEdit() {
> >>> return editorBlock;
> >>> }
> >>>
> >>> In Firefox, this works fine. In IE, I get the following error:
> >>> A component event handler method returned the value
> >>> [EMAIL PROTECTED] Return type
> >>> org.apache.tapestry5.internal.structure.BlockImpl can not be handled.
> >>> Configured return types are java.lang.Class, java.lang.String,
> >>> java.net.URL,
> >>> org.apache.tapestry5.Link, org.apache.tapestry5.StreamResponse,
> >>> org.apache.tapestry5.runtime.Component.
> >>>
> >>> I have looked at previous posts on this list and it seems that this is
> >>> because request.isXHR() is false. What can I do to fix this in IE? I
> >>> thought
> >>> that XHR should be true in this case?
> >>>
> >>> I am using tapestry 5.0.13 and IE 6.0
> >>>
> >>> Full stack trace:
> >>> %d 192408 ERROR
> >>> [org.apache.tapestry5.services.TapestryModule.RequestExceptionHandler]
> >>> (http-127.0.0.1-8080-2:) Processing of request failed with uncaught
> >>> exception: A component event handler method returned the value
> >>> [EMAIL PROTECTED] Return type
> >>> org.apache.tapestry5.internal.structure.BlockImpl can not be
> >>> handled. Configured return types are java.lang.Class,
> java.lang.String,
> >>> java.net.URL, org.apache.tapestry5.Link,
> >>> org.apache.tapestry5.StreamResponse,
> >>> org.apache.tapestry5.runtime.Component.
> >>> org.apache.tapestry5.runtime.ComponentEventException: A component event
> >>> handler method returned the value
> >>> [EMAIL PROTECTED] Return type
> >>> org.apache.tapestry5.internal.structure.BlockImpl can not be
> >>> handled. Configured return types are java.lang.Class,
> java.lang.String,
> >>> java.net.URL, org.apache.tapestry5.Link,
> >>> org.apache.tapestry5.StreamResponse,
> >>> org.apache.tapestry5.runtime.Component.
> >>> [at
> >>>
> classpath:com/bglobal/isharesnet/tapestry/components/fund/FundGraph.tml,
> >>> line 2, column 44]
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1042)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:67)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
> >>> at
> >>>
> >>>
> $ComponentEventRequestHandler_11abad25fdc.handle($ComponentEventRequestHandler_11abad25fdc.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
> >>> at
> >>>
> >>>
> $ComponentEventRequestHandler_11abad25fdc.handle($ComponentEventRequestHandler_11abad25fdc.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:1987)
> >>> at
> >>>
> >>>
> $ComponentEventRequestHandler_11abad25fdc.handle($ComponentEventRequestHandler_11abad25fdc.java)
> >>> at
> >>>
> >>>
> $ComponentEventRequestHandler_11abad25f81.handle($ComponentEventRequestHandler_11abad25f81.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:135)
> >>> at $Dispatcher_11abad25f84.dispatch($Dispatcher_11abad25f84.java)
> >>> at $Dispatcher_11abad25f76.dispatch($Dispatcher_11abad25f76.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.services.TapestryModule$12.service(TapestryModule.java:938)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.LocalizationFilter.service(LocalizationFilter.java:42)
> >>> at
> $RequestHandler_11abad25f77.service($RequestHandler_11abad25f77.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:586)
> >>> at
> $RequestHandler_11abad25f77.service($RequestHandler_11abad25f77.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
> >>> at
> $RequestHandler_11abad25f77.service($RequestHandler_11abad25f77.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
> >>> at
> $RequestHandler_11abad25f77.service($RequestHandler_11abad25f77.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:93)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:84)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:75)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)
> >>> at
> $RequestHandler_11abad25f77.service($RequestHandler_11abad25f77.java)
> >>> at
> $RequestHandler_11abad25f6f.service($RequestHandler_11abad25f6f.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.services.TapestryModule$11.service(TapestryModule.java:918)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
> >>> at
> >>>
> >>>
> $HttpServletRequestFilter_11abad25f6e.service($HttpServletRequestFilter_11abad25f6e.java)
> >>> at
> >>>
> >>>
> $HttpServletRequestHandler_11abad25f70.service($HttpServletRequestHandler_11abad25f70.java)
> >>> at
> >>>
> >>>
> $HttpServletRequestHandler_11abad25f6d.service($HttpServletRequestHandler_11abad25f6d.java)
> >>> at
> org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:168)
> >>> at
> >>>
> >>>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> >>> at
> >>>
> >>>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> >>> at
> >>>
> >>>
> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
> >>> at
> >>>
> >>>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> >>> 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.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
> >>> at
> >>>
> >>>
> org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
> >>> at
> >>>
> >>>
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> >>> at
> >>>
> >>>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> >>> at
> >>>
> >>>
> org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
> >>> at
> >>>
> >>>
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> >>> at
> >>>
> >>>
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
> >>> at
> >>>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
> >>> at
> >>>
> >>>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> >>> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
> >>> at java.lang.Thread.run(Thread.java:619)
> >>> Caused by: java.lang.RuntimeException: A component event handler method
> >>> returned the value
> >>> [EMAIL PROTECTED] type
> >>> org.apache.tapestry5.internal.structure.BlockImpl can not be
> >>> handled. Configured return types are java.lang.Class,
> java.lang.String,
> >>> java.net.URL, org.apache.tapestry5.Link,
> >>> org.apache.tapestry5.StreamResponse,
> >>> org.apache.tapestry5.runtime.Component.
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.ObjectComponentEventResultProcessor.processResultValue(ObjectComponentEventResultProcessor.java:39)
> >>> at
> >>>
> >>>
> $ComponentEventResultProcessor_11abad26009.processResultValue($ComponentEventResultProcessor_11abad26009.java)
> >>> at
> >>>
> >>>
> $ComponentEventResultProcessor_11abad25f87.processResultValue($ComponentEventResultProcessor_11abad25f87.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.ComponentResultProcessorWrapper.handleResult(ComponentResultProcessorWrapper.java:42)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl$15.handleResult(ComponentPageElementImpl.java:1001)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.services.EventImpl.storeResult(EventImpl.java:56)
> >>> at
> >>>
> >>>
> com.bglobal.isharesnet.tapestry.components.fund.FundGraph.dispatchComponentEvent(FundGraph.java)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:864)
> >>> at
> >>>
> >>>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1025)
> >>> ... 50 more
> >>>
> >>>
> >>>
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: [EMAIL PROTECTED]
> >> For additional commands, e-mail: [EMAIL PROTECTED]
> >>
> >>
> >
>
>
>
> --
> Howard M. Lewis Ship
>
> Creator Apache Tapestry and Apache HiveMind
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
