The headComponent reference probably really is null. I don't think the
component hierarchy is doing what you think it is in this instance - things
get a little trickier when you are working through a @RenderBody setup and
such...
I'd make this be a single shared property that you have defined elsewhere
(like on the page? ) so that you don't have to try navigating through the
component hierarchy via ognl. That's usually a warning sign for the
majority of cases anyways that the value should be a parameter/shared
property anyways. (besides some cases where it's just easier and you know,
who cares if it works right? ;) )
On 7/3/07, Ken nashua <[EMAIL PROTECTED]> wrote:
Thanks...
I just have a little question...
I declared an id to a widget and trying to reference a property of that
widget further below in html.
Here is the code..
<html jwcid="[EMAIL PROTECTED]"
title="ognl:page.components.headComponent.title"
stylesheet="ognl:assets.stylesheet">
<body jwcid="@Body">
<div id="page">
<div id="header" class="clearfix">
<a href="#" jwcid="@PageLink" page="Home">
<h1 style="padding: 5px;">
<span class="right"
jwcid="@Insert"
value="ognl:page.components.headComponent.title"/>
</h1>
</a>
</div>
The widget in question is headComponent...
Now the widget CustomHead has no problem referencing
ognl:page.components.headComponent.title
but thereafter down below in html... it fails nosuchproperty
<span class="right" jwcid="@Insert"
value="ognl:page.components.headComponent.title"/>
How am I suppose to refer to this value?
i tried @Persist annotation in the java...
I am at a loss for how to get this thing into the session/page and refer
to
it.
Can someone help and let me know whats oging on... I believe this is basic
tapestry 101. Sorry.
Thanks in advance.
Best regards
Ken in nashua
org.apache.tapestry.BindingException
Unable to read OGNL expression '<parsed OGNL expression>' of
[EMAIL PROTECTED]/$Border]: source is null for
getProperty(null,
"title")
binding: ExpressionBinding[Home/$Border
page.components.headComponent.title]
location: context:/WEB-INF/Border.html, line 8
3 <body jwcid="@Body">
4 <div id="page">
5 <div id="header" class="clearfix">
6 <a href="#" jwcid="@PageLink" page="Home">
7 <h1 style="padding: 5px;">
8 <span class="right" jwcid="@Insert"
value="ognl:page.components.headComponent.title"/>
9 </h1>
10 </a>
11 </div>
12
13 <!-- <span jwcid="@If" condition="ognl:
page.components.headComponent">
-->
org.apache.hivemind.ApplicationRuntimeException
Unable to read OGNL expression '<parsed OGNL expression>' of
[EMAIL PROTECTED]/$Border]: source is null for
getProperty(null,
"title")
component: [EMAIL PROTECTED]/$Border]
location: context:/WEB-INF/Home.html, line 1
1 <span jwcid="@Border">
2 <h1><span key="org.trails.welcome">Welcome to Trails</span></h1>
3 <ul class="glassList">
4 <div class="glassList" jwcid="@Foreach"
source="ognl:allDescriptors"
value="ognl:descriptor">
5 <li>
6 <a href="#" jwcid="@trails:ListAllLink"
typeName="ognl:descriptor.type.name"/>
ognl.OgnlException
source is null for getProperty(null, "title")
Stack Trace:
* ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1611)
* ognl.ASTProperty.getValueBody(ASTProperty.java:96)
* ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
* ognl.SimpleNode.getValue(SimpleNode.java:210)
* ognl.ASTChain.getValueBody(ASTChain.java:109)
* ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
* ognl.SimpleNode.getValue(SimpleNode.java:210)
* ognl.Ognl.getValue(Ognl.java:333)
* ognl.Ognl.getValue(Ognl.java:310)
*
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl.readCompiled(
ExpressionEvaluatorImpl.java:91)
*
$ExpressionEvaluator_1138c8dc9ee.readCompiled($ExpressionEvaluator_1138c8dc9ee.java)
*
org.apache.tapestry.binding.ExpressionBinding.resolveExpression(
ExpressionBinding.java:110)
*
org.apache.tapestry.binding.ExpressionBinding.getObject(
ExpressionBinding.java:103)
*
org.apache.tapestry.binding.AbstractBinding.getObject(AbstractBinding.java
:87)
* $Insert_6.getValue($Insert_6.java)
* org.apache.tapestry.components.Insert.renderComponent(Insert.java
:42)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
*
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java
:434)
*
org.apache.tapestry.link.DefaultLinkRenderer.renderLink(
DefaultLinkRenderer.java:81)
*
org.apache.tapestry.link.AbstractLinkComponent.renderComponent(
AbstractLinkComponent.java:95)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
*
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java
:434)
* org.apache.tapestry.html.Body.renderComponent(Body.java:129)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
*
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java
:434)
*
org.trails.demo.components.CustomHead.renderComponent(CustomHead.java:219)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
*
org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:92)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
*
org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:92)
*
org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:617)
* org.apache.tapestry.AbstractPage.renderPage(AbstractPage.java:275)
*
org.apache.tapestry.engine.RequestCycle.renderPage(RequestCycle.java:366)
*
org.apache.tapestry.services.impl.ResponseRendererImpl.renderResponse(
ResponseRendererImpl.java:71)
*
$ResponseRenderer_1138c8dc8ec.renderResponse($ResponseRenderer_1138c8dc8ec.java)
*
$ResponseRenderer_1138c8dc8eb.renderResponse($ResponseRenderer_1138c8dc8eb.java)
* org.apache.tapestry.engine.HomeService.service(HomeService.java:65)
*
$IEngineService_1138c8dc957.service($IEngineService_1138c8dc957.java)
*
org.apache.tapestry.services.impl.EngineServiceInnerProxy.service(
EngineServiceInnerProxy.java:77)
*
org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(
EngineServiceOuterProxy.java:66)
*
org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:248)
*
org.apache.tapestry.services.impl.InvokeEngineTerminator.service(
InvokeEngineTerminator.java:60)
*
$WebRequestServicer_1138c8dc935.service($WebRequestServicer_1138c8dc935.java)
* org.trails.i18n.LocaleFilter.service(LocaleFilter.java:26)
*
$WebRequestServicerFilter_1138c8dc933.service($WebRequestServicerFilter_1138c8dc933.java)
*
$WebRequestServicer_1138c8dc937.service($WebRequestServicer_1138c8dc937.java)
*
$WebRequestServicer_1138c8dc92f.service($WebRequestServicer_1138c8dc92f.java)
*
org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service
(WebRequestServicerPipelineBridge.java:56)
*
$ServletRequestServicer_1138c8dc915.service($ServletRequestServicer_1138c8dc915.java)
*
org.apache.tapestry.request.DecodedRequestInjector.service(
DecodedRequestInjector.java:55)
*
$ServletRequestServicerFilter_1138c8dc911.service($ServletRequestServicerFilter_1138c8dc911.java)
*
$ServletRequestServicer_1138c8dc917.service($ServletRequestServicer_1138c8dc917.java)
*
org.apache.tapestry.multipart.MultipartDecoderFilter.service(
MultipartDecoderFilter.java:52)
*
$ServletRequestServicerFilter_1138c8dc90f.service($ServletRequestServicerFilter_1138c8dc90f.java)
*
$ServletRequestServicer_1138c8dc917.service($ServletRequestServicer_1138c8dc917.java)
*
org.apache.tapestry.services.impl.SetupRequestEncoding.service(
SetupRequestEncoding.java:53)
*
$ServletRequestServicerFilter_1138c8dc913.service($ServletRequestServicerFilter_1138c8dc913.java)
*
$ServletRequestServicer_1138c8dc917.service($ServletRequestServicer_1138c8dc917.java)
*
$ServletRequestServicer_1138c8dc909.service($ServletRequestServicer_1138c8dc909.java)
*
org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java
:123)
*
org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:79)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
* org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java
:491)
*
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(
ServletHandler.java:1074)
*
org.springframework.web.filter.OncePerRequestFilter.doFilter(
OncePerRequestFilter.java:72)
*
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(
ServletHandler.java:1065)
*
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal
(OpenSessionInViewFilter.java:173)
*
org.springframework.web.filter.OncePerRequestFilter.doFilter(
OncePerRequestFilter.java:77)
*
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(
ServletHandler.java:1065)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:264)
*
org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(
FilterSecurityInterceptor.java:107)
*
org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(
FilterSecurityInterceptor.java:72)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(
ExceptionTranslationFilter.java:110)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(
AnonymousProcessingFilter.java:125)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.wrapper.SecurityContextHolderAwareRequestFilter.doFilter
(SecurityContextHolderAwareRequestFilter.java:81)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(
AbstractProcessingFilter.java:217)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(
HttpSessionContextIntegrationFilter.java:229)
*
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(
FilterChainProxy.java:274)
*
org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java
:148)
*
org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java
:98)
*
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(
ServletHandler.java:1065)
*
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
*
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java
:185)
*
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
*
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)
* org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java
:391)
*
org.mortbay.jetty.handler.ContextHandlerCollection.handle(
ContextHandlerCollection.java:146)
*
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java
:114)
*
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
* org.mortbay.jetty.Server.handle(Server.java:285)
*
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)
*
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(
HttpConnection.java:751)
* org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:500)
* org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
* org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)
*
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java
:329)
*
org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java
:4
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