I did find the behavior handy, but it is easy to work around.
D/
On Dec 12, 2009, at 11:12 PM, Igor Vaynberg wrote:
> i think you guys misunderstand.
>
> i believe what we are talking about here is the requirement for
> presence of components *other* then the component specified by
> enclosure's child attribute.
>
> essentially if i do this:
>
> add(new webmarkupcontainer("container").setvisible(false));
> and have this in my markup:
> <div wicket:id="container"><div wicket:id="foo"/></div>
>
> wicket will not throw an error even though i never added the "foo"
> component to my component hierarchy because as soon as it determins
> that the container div is not visible it will skip over until the
> closing tag.
>
> the enclosures, however, as of 1.4.4 *will* throw an error for *any*
> missing child declared inside enclosure's markup *even though* the
> enclosure has been determined as hidden.
>
> hope this clears it up somewhat
>
> -igor
>
>
>
> On Sat, Dec 12, 2009 at 5:18 PM, Jason Lea <ja...@kumachan.net.nz> wrote:
>> From the description of the tag
>> http://cwiki.apache.org/WICKET/wickets-xhtml-tags.html I think the 1.4.4
>> behavior would be correct, and if the example Vadim provided used to work it
>> would be due to a bug.
>> The attribute on the tag makes it clear it is a 'child' otherwise it would
>> have been named 'randomWicketId' :)
>>
>> The tag is really a case of (limited) conditional markup which I think we
>> want the framework to stay away from. If there was a vote to expand the
>> behavior, then perhaps it should also move out of the core to wicket
>> extensions (if such a thing is possible).
>>
>> Igor Vaynberg wrote:
>>>
>>> hrm, already two people stumbled into this. i was of the mind that the
>>> way it works now is the correct behavior, but i am starting to think
>>> maybe i was incorrect...
>>>
>>> -igor
>>>
>>> On Sat, Dec 12, 2009 at 12:39 PM, Vadim Tesis <vad...@hotmail.com> wrote:
>>>
>>>>
>>>> all,
>>>>
>>>>
>>>>
>>>> i just migrated to 1.4.4 from 1.4.3 and looks like enclosure
>>>> functionality changed. if enclosure doesn't have child element in it, it
>>>> throws exception.
>>>>
>>>> for example following code works in 1.4.3
>>>>
>>>>
>>>>
>>>> ...
>>>>
>>>> <wicket:enclosure child="link">
>>>> <div>...</div>
>>>> </wicket:enclosure>
>>>> <a href="#" wicket:id="link">...</a>
>>>>
>>>> ...
>>>>
>>>>
>>>>
>>>> but in 1.4.4 it throws exception (see below).
>>>>
>>>> is 1.4.4 functionality correct or 1.4.3?
>>>>
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> Vadim
>>>>
>>>>
>>>>
>>>>
>>>> [#|2009-12-12T12:54:04.546-0500|INFO|sun-appserver2.1|javax.enterprise.system.stream.out|_ThreadID=20;_ThreadName=httpSSLWorkerThread-80-0;|12:54:04,546
>>>> ERROR org.apache.wicket.RequestCycle - Exception in rendering component:
>>>> [MarkupContainer [Component id = enclosure-205]]
>>>> org.apache.wicket.WicketRuntimeException: Exception in rendering
>>>> component: [MarkupContainer [Component id = enclosure-205]]
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2656)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:229)
>>>> at
>>>> org.apache.wicket.markup.resolver.EnclosureResolver.resolve(EnclosureResolver.java:61)
>>>> at
>>>> org.apache.wicket.markup.resolver.ComponentResolvers.resolve(ComponentResolvers.java:81)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1418)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1414)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at
>>>> org.apache.wicket.markup.html.form.Form.onComponentTagBody(Form.java:1936)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.markup.html.form.Form.onRender(Form.java:2007)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1414)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:229)
>>>> at
>>>> org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:66)
>>>> at
>>>> org.apache.wicket.markup.resolver.ComponentResolvers.resolve(ComponentResolvers.java:81)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1418)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:229)
>>>> at
>>>> org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:73)
>>>> at
>>>> org.apache.wicket.markup.resolver.ComponentResolvers.resolve(ComponentResolvers.java:81)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1418)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:229)
>>>> at
>>>> org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:66)
>>>> at
>>>> org.apache.wicket.markup.resolver.ComponentResolvers.resolve(ComponentResolvers.java:81)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1418)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1577)
>>>> at
>>>> org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1501)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1512)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.MarkupContainer.autoAdd(MarkupContainer.java:229)
>>>> at
>>>> org.apache.wicket.markup.resolver.MarkupInheritanceResolver.resolve(MarkupInheritanceResolver.java:73)
>>>> at
>>>> org.apache.wicket.markup.resolver.ComponentResolvers.resolve(ComponentResolvers.java:81)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1418)
>>>> at
>>>> org.apache.wicket.MarkupContainer.renderAll(MarkupContainer.java:1528)
>>>> at org.apache.wicket.Page.onRender(Page.java:1545)
>>>> at org.apache.wicket.Component.render(Component.java:2448)
>>>> at org.apache.wicket.Page.renderPage(Page.java:914)
>>>> at
>>>> org.apache.wicket.protocol.http.WebRequestCycle.redirectTo(WebRequestCycle.java:167)
>>>> at
>>>> org.apache.wicket.request.target.coding.HybridUrlCodingStrategy$HybridBookmarkablePageRequestTarget.respond(HybridUrlCodingStrategy.java:904)
>>>> at
>>>> org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
>>>> at
>>>> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
>>>> at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
>>>> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
>>>> at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
>>>> at
>>>> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479)
>>>> at
>>>> org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:138)
>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
>>>> at
>>>> org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:427)
>>>> at
>>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:333)
>>>> at
>>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
>>>> at
>>>> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
>>>> at
>>>> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
>>>> at
>>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
>>>> at
>>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
>>>> at
>>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
>>>> at
>>>> org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
>>>> at
>>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
>>>> at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
>>>> at
>>>> com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
>>>> at
>>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
>>>> at
>>>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
>>>> at
>>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
>>>> at
>>>> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
>>>> at
>>>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1096)
>>>> at
>>>> org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:288)
>>>> at |#]
>>>>
>>>>
>>>> [#|2009-12-12T12:54:04.546-0500|INFO|sun-appserver2.1|javax.enterprise.system.stream.out|_ThreadID=20;_ThreadName=httpSSLWorkerThread-80-0;|com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:647)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:579)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:831)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
>>>> at
>>>> com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
>>>> Caused by: java.lang.NullPointerException
>>>> at
>>>> org.apache.wicket.markup.html.internal.DirectChildTagIterator.findNext(DirectChildTagIterator.java:109)
>>>> at
>>>> org.apache.wicket.markup.html.internal.DirectChildTagIterator.next(DirectChildTagIterator.java:80)
>>>> at
>>>> org.apache.wicket.markup.html.internal.Enclosure.ensureAllChildrenPresent(Enclosure.java:236)
>>>> at
>>>> org.apache.wicket.markup.html.internal.Enclosure.onComponentTagBody(Enclosure.java:169)
>>>> at org.apache.wicket.Component.renderComponent(Component.java:2617)
>>>> ... 104 more
>>>>
>>>>
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>>>
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>>>
>>>
>>>
>>
>> --
>> Jason Lea
>>
>>
>>
>
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