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 <[email protected]> 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 <[email protected]> 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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