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Posted to users@tapestry.apache.org by Chris Lewis <ch...@bellsouth.net> on 2008/04/18 13:47:32 UTC
Re: T5: How do I access a page property in my component - PagePool
Page Page[Start en] is dirty
Move your abstract page out of your pages package.
http://tapestry.apache.org/tapestry5/tapestry-core/guide/component-classes.html:
"In addition, it is common for an application to have base classes,
often abstract base classes, that should not be directly referenced.
These should not go in the pages, components or mixins packages, because
they then look like valid pages, components or mixins. Instead, use the
root.base package to store such base classes."
So if you have a package structure:
my.company.components
my.company.pages
Then your abstract/base classes should go in something else.
Specifically not in a directory controlled by T5 such as 'pages' or
components. You are encouraged to use 'base':
my.company.base
chris
Jan Vissers wrote:
> Noticed the @InjectPage annotation and tried that - as the javadoc
> talked about accessing read only properties of a page. However I get
> this:
>
> [ERROR] RequestExceptionHandler Processing of request failed with
> uncaught exception:
> com.*****.lighting.guidecontrol.view.pages.AbstractBasePage
> java.lang.InstantiationError:
> com.*****.lighting.guidecontrol.view.pages.AbstractBasePage
> at
> $Instantiator_119611f8cd5.newInstance($Instantiator_119611f8cd5.java)
> at
> org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.<init>(InternalComponentResourcesImpl.java:79)
> at
> org.apache.tapestry.internal.structure.ComponentPageElementImpl.<init>(ComponentPageElementImpl.java:571)
> at
> org.apache.tapestry.internal.structure.ComponentPageElementImpl.<init>(ComponentPageElementImpl.java:582)
> at
> org.apache.tapestry.internal.services.PageElementFactoryImpl.newRootComponentElement(PageElementFactoryImpl.java:261)
> at
> $PageElementFactory_119611f8c78.newRootComponentElement($PageElementFactory_119611f8c78.java)
> at
> org.apache.tapestry.internal.services.PageLoaderProcessor.loadRootComponent(PageLoaderProcessor.java:412)
> at
> org.apache.tapestry.internal.services.PageLoaderProcessor.loadPage(PageLoaderProcessor.java:390)
> at
> org.apache.tapestry.internal.services.PageLoaderImpl.loadPage(PageLoaderImpl.java:59)
> at $PageLoader_119611f8c76.loadPage($PageLoader_119611f8c76.java)
> at
> org.apache.tapestry.internal.services.PagePoolCache.checkout(PagePoolCache.java:188)
> at
> org.apache.tapestry.internal.services.PagePoolImpl.checkout(PagePoolImpl.java:107)
> at $PagePool_119611f8c75.checkout($PagePool_119611f8c75.java)
> at
> org.apache.tapestry.internal.services.RequestPageCacheImpl.get(RequestPageCacheImpl.java:43)
> at
> $RequestPageCache_119611f8c74.get($RequestPageCache_119611f8c74.java)
> at
> $RequestPageCache_119611f8c3f.get($RequestPageCache_119611f8c3f.java)
> at com.*****.lighting.guidecontrol.view.components.Heading._
> $read_inject_page_basePage(Heading.java)
> at
> com.*****.lighting.guidecontrol.view.components.Heading.getBasePage(Heading.java:42)
> at $PropertyConduit_119611f8ca6.get($PropertyConduit_119611f8ca6.java)
> at
> org.apache.tapestry.internal.bindings.PropBinding.get(PropBinding.java:53)
> at
> org.apache.tapestry.internal.structure.ExpansionPageElement.render(ExpansionPageElement.java:47)
> at
> org.apache.tapestry.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:63)
> at
> org.apache.tapestry.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:84)
> at
> $PageRenderQueue_119611f8cb7.render($PageRenderQueue_119611f8cb7.java)
> at
> $PageRenderQueue_119611f8cb0.render($PageRenderQueue_119611f8cb0.java)
> at org.apache.tapestry.services.TapestryModule
> $19.renderMarkup(TapestryModule.java:1293)
> at org.apache.tapestry.services.TapestryModule
> $23.renderMarkup(TapestryModule.java:1402)
> at
> $MarkupRenderer_119611f8cb9.renderMarkup($MarkupRenderer_119611f8cb9.java)
> at org.apache.tapestry.services.TapestryModule
> $22.renderMarkup(TapestryModule.java:1383)
> at
> $MarkupRenderer_119611f8cb9.renderMarkup($MarkupRenderer_119611f8cb9.java)
> at org.apache.tapestry.services.TapestryModule
> $21.renderMarkup(TapestryModule.java:1365)
> at
> $MarkupRenderer_119611f8cb9.renderMarkup($MarkupRenderer_119611f8cb9.java)
> at org.apache.tapestry.services.TapestryModule
> $20.renderMarkup(TapestryModule.java:1347)
> at
> $MarkupRenderer_119611f8cb9.renderMarkup($MarkupRenderer_119611f8cb9.java)
> at
> $MarkupRenderer_119611f8cb5.renderMarkup($MarkupRenderer_119611f8cb5.java)
> at
> org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:55)
> at
> $PageMarkupRenderer_119611f8cb3.renderPageMarkup($PageMarkupRenderer_119611f8cb3.java)
> at
> org.apache.tapestry.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:57)
> at
> $PageResponseRenderer_119611f8c6e.renderPageResponse($PageResponseRenderer_119611f8c6e.java)
> at
> org.apache.tapestry.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:59)
> at org.apache.tapestry.services.TapestryModule
> $29.handle(TapestryModule.java:1607)
> at
> $PageRenderRequestHandler_119611f8c6f.handle($PageRenderRequestHandler_119611f8c6f.java)
> at
> $PageRenderRequestHandler_119611f8c64.handle($PageRenderRequestHandler_119611f8c64.java)
> at
> org.apache.tapestry.internal.services.RootPathDispatcher.dispatch(RootPathDispatcher.java:61)
> at $Dispatcher_119611f8c6b.dispatch($Dispatcher_119611f8c6b.java)
> at $Dispatcher_119611f8c5d.dispatch($Dispatcher_119611f8c5d.java)
> at org.apache.tapestry.services.TapestryModule
> $13.service(TapestryModule.java:944)
> at com.*****.lighting.guidecontrol.view.services.AppModule
> $1.service(AppModule.java:70)
> at $RequestFilter_119611f8c5c.service($RequestFilter_119611f8c5c.java)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at
> org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:42)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at org.apache.tapestry.services.TapestryModule
> $3.service(TapestryModule.java:553)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at org.apache.tapestry.services.TapestryModule
> $2.service(TapestryModule.java:520)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at
> org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at org.apache.tapestry.internal.services.CheckForUpdatesFilter
> $2.invoke(CheckForUpdatesFilter.java:93)
> at org.apache.tapestry.internal.services.CheckForUpdatesFilter
> $2.invoke(CheckForUpdatesFilter.java:84)
> at
> org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
> at
> org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)
> at
> $RequestHandler_119611f8c5e.service($RequestHandler_119611f8c5e.java)
> at
> $RequestHandler_119611f8c55.service($RequestHandler_119611f8c55.java)
> at org.apache.tapestry.services.TapestryModule
> $12.service(TapestryModule.java:924)
> at
> org.apache.tapestry.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
> at
> $HttpServletRequestFilter_119611f8c54.service($HttpServletRequestFilter_119611f8c54.java)
> at
> $HttpServletRequestHandler_119611f8c56.service($HttpServletRequestHandler_119611f8c56.java)
> at
> $HttpServletRequestHandler_119611f8c53.service($HttpServletRequestHandler_119611f8c53.java)
> at org.apache.tapestry.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.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
> 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:447)
> at java.lang.Thread.run(Thread.java:735)
> [ERROR] PagePool Page Page[Start en] is dirty, and will be discarded
> (rather than returned to the page pool).
>
>
>
> On Fri, 2008-04-18 at 12:32 +0200, Jan Vissers wrote:
>
>> Ok - figured out what @InjectContainer gives me.
>> Although I'm not quite happy with it, as it returns another component,
>> which contains the component - but not the actual page. This is one
>> level further up the foodchain for me ;-)
>>
>> Would be nice to have a direct way to access page properties :-(
>>
>> -J.
>>
>> On Fri, 2008-04-18 at 12:26 +0200, Jan Vissers wrote:
>>
>>> Thanks - but I don't understand...
>>>
>>> What is the parameter - the containing page?
>>>
>>> Basically I want to access a property from my 'AbstractBasePage' which
>>> has some common properties on it from a component that is placed on a
>>> concrete page.
>>>
>>> @Chris: regarding your hint of @InjectContainer...? what should the type
>>> be - 'Page'?
>>>
>>> -J.
>>>
>>> On Fri, 2008-04-18 at 11:23 +0100, nicholas Krul wrote:
>>>
>>>> bind it as a paramater
>>>>
>>>> @Paramater(required=true) //only if required
>>>> Object needed
>>>>
>>>>
>>>>
>>>> On Fri, Apr 18, 2008 at 11:07 AM, Chris Lewis <ch...@bellsouth.net>
>>>> wrote:
>>>>
>>>>
>>>>> Jan,
>>>>>
>>>>> There's probably a simpler way, but you should be able to use
>>>>> @InjectContainer in your component to get the page and call whatever
>>>>> methods (in your case a a getter) you want. I imagine there's a more
>>>>> terse way, but I'm not sure what it would be.
>>>>>
>>>>> chris
>>>>>
>>>>> Jan Vissers wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I want to access a page property from within my component - that has
>>>>>> been placed on that page. In T4 I had something like 'page.' - how is
>>>>>> this done in T5?
>>>>>>
>>>>>> Thx,
>>>>>> -J.
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> --
>>>>> http://thegodcode.net
>>>>>
>>>>>
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>>>>>
>>>>>
>>>>>
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>>>
>>>
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>>
>>
>
>
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--
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