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1. Re: Can I forace a method to be invoked everytime a page is
theute Aug 17, 2006 10:57 AM (in response to c_eric_ray)Did you look at pages.xml ?
Look at the blog example. -
2. Re: Can I forace a method to be invoked everytime a page is
c_eric_ray Aug 17, 2006 11:00 AM (in response to c_eric_ray)will check it out. thanks.
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3. Re: Can I forace a method to be invoked everytime a page is
c_eric_ray Aug 17, 2006 11:36 AM (in response to c_eric_ray)Page Event appears to be what I need. However, I get the following exception.
javax.faces.el.EvaluationException: Exception while invoking expression #{elements.init} at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:165) at org.jboss.seam.core.Pages.callAction(Pages.java:161) at org.jboss.seam.core.Pages.callAction(Pages.java:143) at org.jboss.seam.jsf.AbstractSeamPhaseListener.callPageActions(AbstractSeamPhaseListener.java:128) at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:98) at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:50) at org.apache.myfaces.lifecycle.LifecycleImpl.informPhaseListenersBefore(LifecycleImpl.java:520) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:342) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: javax.faces.el.PropertyNotFoundException: Base is null: elements at org.apache.myfaces.el.ValueBindingImpl.resolveToBaseAndProperty(ValueBindingImpl.java:455) at org.apache.myfaces.el.MethodBindingImpl.resolveToBaseAndProperty(MethodBindingImpl.java:180) at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:114) ... 27 more
here's the pages.xml<pages> <page view-id="/extract/remittance.xhtml" action="#{elements.init}"/> </pages>
The seam ojbect in question hasn't been created yet and it looks like that's the problem. Is there something else I should do?
Thanks. -
4. Re: Can I forace a method to be invoked everytime a page is
gavin.king Aug 23, 2006 11:05 AM (in response to c_eric_ray)Sure. Make a component called "elements" so that it will be automagically instantiated. Or create a @Factory method for "elements".
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5. Re: Can I forace a method to be invoked everytime a page is
jschuetter Aug 25, 2006 7:00 AM (in response to c_eric_ray)Hi there,
how does this "automagical" creation work? I have declared a component and try to call it from the declaration in pages.xml and get the same error.
It works when I outject a component to a context. But at the end I want to have a stateless bean created whenever requested.
I lack a bit of understanding here. The error occurs on "org.apache.myfaces.el.MethodBindingImpl.invoke" when the myfaces variable resolver searches the FacesContext.
How ist the myfaces variable resolver supposed to find components that are not part of a context ?
I can't see anywhere that they are added to the FacesContext by the SeamPhaseListener.
Thanks for some clarification,
Jens -
6. Re: Can I forace a method to be invoked everytime a page is
jschuetter Aug 26, 2006 9:43 AM (in response to c_eric_ray)problem solved. I used my own seam jboss-seam.jar debug version. It didn't include the faces-config.xml which I was surprised to find in the original jar archive ...
Jens