It's a problem that has to be handled in some bit of code integrating the two libraries. I'm curious in this case how the RenderingContext actually got created at all, since there's apparently no Trinidad ViewHandler on the stack... If someone could track *that* down, we might have a good idea where to add the code to default the FormData.
-- Adam On 7/9/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
I assume then that this should be considered a problem with Ajax4JSF and not something to be addressed in Trinidad? "Adam Winer" <[EMAIL PROTECTED]> wrote on 07/09/2007 12:44:50 PM: > Hrm, true, but somehow there definitely is a RenderingContext; the > issue is that the FormData did not get created. > > To solve this, some bit of Ajax4JSF code would need a hook > point that could be subclassed/plugged-in to that would let > Trinidad set up a FormData object. > > -- Adam > > On 7/9/07, Matthias Wessendorf <[EMAIL PROTECTED]> wrote: > I asked, because I noticed on your stack there is only this ViewHandler > > AjaxViewHandler (for ajax4jsf) > > On 7/9/07, [EMAIL PROTECTED] < [EMAIL PROTECTED]> wrote: > > > > Yes, I did. I followed all of the non-seam directions (since I amnot using > > seam). > > > > [EMAIL PROTECTED] wrote on 07/09/2007 11:57:46 AM: > > > > > > > have u checked this page > > > > > > http://wiki.apache.org/myfaces/TrinidadSeamAjax4Jsf > > > > > > On 7/9/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > > > > > > > I am trying to use Ajax4Jsf with Trinidad, Facelets, and JSF 1.2. (I am > > > > considering using the RichRaces components as well) In my demo I have a > > > > required text field, a check box and a set of fields that are enabled > > if the > > > > checkbox is selected. I am trying to use ajax on the checkboxand only > > > > refresh the fields that are associated with it. > > > > If the initial state of the page is that the box is not selected and > > the > > > > fields are disabled, selecting the checkbox results in the following: > > > > > > > > WARNING: executePhase(RENDER_RESPONSE > > > > 6,org.apache.myfaces.trinidadinternal.context. > > > [EMAIL PROTECTED]) > > > > threw exception > > > > java.lang.NullPointerException > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > EditableValueRenderer. > > > addOnSubmitConverterValidators (EditableValueRenderer.java:206) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > > > SimpleInputTextRenderer. > encodeAllAsElement(SimpleInputTextRenderer.java :105) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > SimpleInputListOfValuesRenderer. > > > > > renderTextField(SimpleInputListOfValuesRendere r.java:197) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > SimpleInputListOfValuesRenderer. > > > > > encodeAllAsElement(SimpleInputListOfValuesRendere r.java:154) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > > > SimpleInputDateRenderer. > encodeAllAsElement(SimpleInputDateRenderer.java:194) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > FormElementRenderer.encodeAll(FormElementRenderer.java:109) > > > > at > > > > org.apache.myfaces.trinidad.render.CoreRenderer. > > > delegateRenderer(CoreRenderer.java:318) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml . > > > InputLabelAndMessageRenderer. > > > > > renderFieldCellContents(InputLabelAndMessageRenderer.java:142) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml . > > > > > LabelAndMessageRenderer._renderFieldCell(LabelAndMessageRenderer.java:375) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > > > LabelAndMessageRenderer.encodeAll(LabelAndMessageRenderer.java:270) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.renderkit.core.xhtml. > > > > > InputLabelAndMessageRenderer . > encodeAll(InputLabelAndMessageRenderer.java:120) > > > > at > > > > org.apache.myfaces.trinidad.render.CoreRenderer. > > > encodeEnd(CoreRenderer.java:208) > > > > at > > > > > > org.apache.myfaces.trinidad.component.UIXComponentBase. > > > encodeEnd(UIXComponentBase.java:733) > > > > at > > > > org.ajax4jsf.framework.renderer.RendererBase . > > > renderChild(RendererBase.java:286) > > > > at > > > > org.ajax4jsf.framework.renderer.RendererBase. > > > renderChildren(RendererBase.java:262) > > > > at > > > > org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer. > > > encodeChildren(AjaxOutputPanelRenderer.java:79) > > > > at > > > > javax.faces.component.UIComponentBase. > > > encodeChildren(UIComponentBase.java:812) > > > > at > > > > org.ajax4jsf.framework.renderer.RendererBase. > > > renderChild(RendererBase.java:282) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxChildrenRenderer. > > > encodeAjaxComponent(AjaxChildrenRenderer.java:159) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxChildrenRenderer . > > > encodeAjaxChildren(AjaxChildrenRenderer.java:97) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxChildrenRenderer. > > > encodeAjaxComponent(AjaxChildrenRenderer.java :150) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxChildrenRenderer. > > > encodeAjaxChildren(AjaxChildrenRenderer.java:97) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxChildrenRenderer. > > > encodeAjaxComponent(AjaxChildrenRenderer.java:150) > > > > at > > > > org.ajax4jsf.framework.renderer.AjaxContainerRenderer . > > > encodeAjax(AjaxContainerRenderer.java:125) > > > > at > > > > > > org.ajax4jsf.framework.ajax.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:549) > > > > at > > > > org.ajax4jsf.framework.ajax.AjaxContext. > > > renderAjaxRegion(AjaxContext.java:307) > > > > at > > > > > > org.ajax4jsf.framework.ajax.AjaxContext$2.invoke(AjaxContext.java :222) > > > > at > > > > org.ajax4jsf.framework.ajax.JsfOneOneInvoker. > > > invokeOnComponent(JsfOneOneInvoker.java:75) > > > > at > > > > org.ajax4jsf.framework.ajax .AjaxContext. > > > invokeOnComponent(AjaxContext.java:178) > > > > at > > > > org.ajax4jsf.framework.ajax.AjaxContext. > > > renderSubmittedAjaxRegion(AjaxContext.java:236) > > > > at > > > > org.ajax4jsf.framework.ajax.AjaxViewHandler. > > > renderView(AjaxViewHandler.java:256) > > > > at > > > > com.sun.faces.lifecycle.RenderResponsePhase. > > > execute(RenderResponsePhase.java:106) > > > > at > > > > > > com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) > > > > at > > > > > > com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) > > > > at > > > > > > javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > internalDoFilter(ApplicationFilterChain.java:269) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > doFilter(ApplicationFilterChain.java:188) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl. > > > _invokeDoFilter(TrinidadFilterImpl.java :208) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl. > > > _doFilterImpl(TrinidadFilterImpl.java:165) > > > > at > > > > > > org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl. > > > doFilter(TrinidadFilterImpl.java:138) > > > > at > > > > org.apache.myfaces.trinidad.webapp.TrinidadFilter. > > > doFilter(TrinidadFilter.java:92) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > internalDoFilter(ApplicationFilterChain.java:215) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > doFilter(ApplicationFilterChain.java:188) > > > > at > > > > org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter. > > > doXmlFilter(BaseXMLFilter.java:127) > > > > at > > > > org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter. > > > doFilter(BaseFilter.java:277) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > internalDoFilter(ApplicationFilterChain.java:215) > > > > at > > > > org.apache.catalina.core.ApplicationFilterChain. > > > doFilter(ApplicationFilterChain.java:188) > > > > at > > > > org.apache.catalina.core.StandardWrapperValve. > > > invoke(StandardWrapperValve.java:210) > > > > at > > > > org.apache.catalina.core.StandardContextValve. > > > invoke(StandardContextValve.java:174) > > > > at > > > > org.apache.catalina.core.StandardHostValve. > > > invoke( StandardHostValve.java:127) > > > > at > > > > org.apache.catalina.valves.ErrorReportValve. > > > invoke(ErrorReportValve.java:117) > > > > at > > > > org.apache.catalina.core .StandardEngineValve. > > > invoke(StandardEngineValve.java:108) > > > > at > > > > > > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) > > > > at > > > > > > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870) > > > > at > > > > org.apache.coyote.http11. > > > Http11BaseProtocol$Http11Conne ctionHandler. > > > processConnection(Http11BaseProtocol.java:665) > > > > at > > > > org.apache.tomcat.util.net.PoolTcpEndpoint. > > > processSocket( PoolTcpEndpoint.java:528) > > > > at > > > > org.apache.tomcat.util.net.LeaderFollowerWorkerThread. > > > runIt(LeaderFollowerWorkerThread .java:81) > > > > at > > > > > > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable. > > > run(ThreadPool.java:685) > > > > at java.lang.Thread.run(Thread.java :595) > > > > > > > > > > > > Here is the facelet.... > > > > > > > > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" > > > > > > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";> > > > > <html xmlns="http://www.w3.org/1999/xhtml " > > > > xmlns:h="http://java.sun.com/jsf/html"; > > > > xmlns:f="http://java.sun.com/jsf/core " > > > > xmlns:ui="http://java.sun.com/jsf/facelets"; > > > > xmlns:tr="http://myfaces.apache.org /trinidad" > > > > > > xmlns:trh="http://myfaces.apache.org/trinidad/html"; > > > > xmlns:a4j=" https://ajax4jsf.dev.java.net/ajax";> > > > > <body> > > > > <form name="form" jsfc="h:form" > > > > > <input id="custRef" type="text" jsfc="h:inputText" > > > > required="true" value="#{customer.custRef}" > > > > label="Customer reference"/><br/> > > > > > > > > <h:selectBooleanCheckbox name="hierBill" id="toSend2" > > > > value="#{customer.hierBill}"> > > > > <f:selectItem itemLabel="Hierarchy Billing" > > > > itemValue="true"/> > > > > <a4j:support event="onclick" reRender="hierBillStuff" > > > > ajaxSingle="true"/> > > > > </h:selectBooleanCheckbox> > > > > <a4j:outputPanel ajaxRendered="true"> > > > > <h:messages/> > > > > </a4j:outputPanel> > > > > <a4j:outputPanel id="hierBillStuff"> > > > > <label class="required">Bill period:</label><br/> > > > > <input type="text" name="billPer" size="10" id="billPer" > > > > jsfc="h:inputText" value="#{customer.billPeriod}" > > > > required="true" > > > > disabled="#{!createCustBean.hierBill}"/> > > > > <select name="select" jsfc="h:selectOneListbox" size="1" > > > > id="billPerFreq" > > > > value="#{customer.billPeriodFreq}" > > > > required="true" > > > > disabled="#{!createCustBean .hierBill}"> > > > > <f:selectItems value="#{createCustBean.billPeriodFreqs}"/> > > > > </select> > > > > > > > > <label class="required">Next bill date:</label><br/> > > > > <tr:inputDate id="nextBillDate" > > > > value="#{customer.nextBillDate}" > > > > disabled="#{!createCustBean.hierBill}" > > > > required="true" /> > > > > > > > > <label class="required">Number of bills per > > statement:</label><br /> > > > > <input type="text" name="numBills" id="numBills" > > > > jsfc="h:inputText" value="#{customer.numBills}" > > > > disabled="#{!createCustBean.hierBill}" > > > > required="true"/> > > > > </a4j:outputPanel> > > > > </form> > > > > <ui:debug hotkey="p" rendered="#{initParam.debugMode}"/> > > > > <a4j:log hotkey="o"/> > > > > </body> > > > > </html> > > > > > > > > > > > > The problem seems to be that the Trinidad EditableValueRender class > > (which > > > > is the base class of the input field renderers) expects a reference to > > a > > > > FormData object in a rendering context. The FormData object is > > established > > > > in the context when the form element is rendered. In the suggested > > approach > > > > of just rendering the affected fields the form component does not get > > > > rerendered so as a result the FormData object reference does not get > > set and > > > > therefore a null pointer results. > > > > > > > > It appears that Trinidad and Ajax4JSF are incompatible for this type > > of > > > > thing. > > > > > > > > > > > > > -- > > > Matthias Wessendorf > > > > > > further stuff: > > > blog: http://matthiaswessendorf.wordpress.com/ > > > mail: matzew-at-apache-dot-org > > > > > -- > Matthias Wessendorf > > further stuff: > blog: http://matthiaswessendorf .wordpress.com/ > mail: matzew-at-apache-dot-org
