phases of listener invoking doubts?

Hi experts,

I wrote a method named x in the request module it will return a string. I expose this method on the client interface.

I called the x method using methodaction in my jsff.

OK fine.

I got jsff presented inside the stubborn TF

I had my jsff some tabs Panel. clicking the jsff method I wrote had to be executed.
public class x implements PhaseListener {
....
       public void beforePhase(PhaseEvent phaseEvent) {
        
        System.out.println("Before Phase");
       
        if (phaseEvent.getPhaseId() == PhaseId.RENDER_RESPONSE)
        { 
        BindingContainer bindings = getBindings();
        OperationBinding oper = bindings.getOperationBinding("Scheme");
        Object result = oper.execute();
        System.out.println("result" + result);
        if(result.equals("P"))
        {
            advReqFlag.setDisabled(false);
            AdfFacesContext.getCurrentInstance().addPartialTarget(advReqFlag);
        }
        
        }
        
      
    }

...
}
but he always returns the null pointer.
If no written after phase no exception more but never executed

error is explicit. but I impossible? How can I fix?
Before Phase
<UIViewRoot> <notifyPhaseListeners> Exception
javax.el.ELException: java.lang.NullPointerException
     at com.sun.el.parser.AstValue.invoke(Unknown Source)
     at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)
     at javax.faces.component.UIViewRoot.notifyPhaseListeners(UIViewRoot.java:608)
     at javax.faces.component.UIViewRoot.notifyBefore(UIViewRoot.java:510)
     at javax.faces.component.UIViewRoot.encodeBegin(UIViewRoot.java:564)
     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:928)
     at com.sun.faces.application.ViewHandlerImpl.doRenderView(ViewHandlerImpl.java:266)
     at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:197)
     at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:189)
     at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:193)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._renderResponse(LifecycleImpl.java:800)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:294)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:214)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.lang.NullPointerException
     at com.rits.suplr.view.Listeners.PrintPage.beforePhase(PrintPage.java:79)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     ... 52 more
<UIViewRoot> <notifyPhaseListeners> Exception while processing expression #{PrintPage.beforePhase} for attribute beforePhase.

Follow the steps below:

1. create your pageDef for AM MethodActionBinding method.
2 disabled = "."
3. run the methodactionBinding in this method of bean.

This works... I tested it in a sample application.

Thank you
Rajdeep

Tags: Java

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    Published by: celine October 5, 2010 20:13

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    It's a question of JSF sort of...

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    Hi Michael,

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  • Call the javascript of customized phase listener method

    Hey guys,.
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    Thanks in advance.

    Hello user,.

    Import org.apache.myfaces.trinidad.render.ExtendedRenderKitService;
    Import org.apache.myfaces.trinidad.util.Service;

    ExtendedRenderKitService service is Service.getRenderKitService (FacesContext.getCurrentInstance (), ExtendedRenderKitService.class);.
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    I hope that's what you're looking for

    concerning

  • What are the steps to set a listener to phase in JSF 1.1?

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    Thanks in advance.

    Mustafa,

    Step 1: Create a phase listener
    Step 2: Enter in the faces-config file. XML

    [url http://balusc.blogspot.com/2006/09/debug-jsf-lifecycle.html] This is an old post that shows the steps (and then goes to show how use a listener of the specific phase to help gain a better understanding of the life cycle JSF).

    John

  • doubt in the listener

    Hi all

    Is it possible to connect to the database with out considering the listener in the server box...

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    Published by: BALAKRIS005 on June 10, 2009 21:41

    If you want to connect from the client side, then you have to listener. Listener will open a port that lets connect you to the server. However, in the server machine, you have port to connect and therefore no need for earpiece.

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    Hello

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    I have a popup that contains a window Panel and Panel window contains a collection of panels.

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    Not sure how the MAF sample allows in this use case.

    Check this post http://adfbugs.blogspot.de/2009/11/new-feature-closing-popup-can-now-be.html which shows how to handle the close of a popop through the popupCancelListener event.

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  • Pass a value change listener to a declarative component

    I use JDeveloper 11.1.1.6.0
    I am able to create my declarative component, but I need the ability to switch in listeners of different value changes depending on where the component is used, and sometimes I need to have no value for the component change listener.
    Currently, I tried to get the element with an attribute "ValueChangeListener' of type 'javax.el.MethodExpression' and gave the EL method in the method that handles the value change events. However, whenever I run the application, I get the following error at an event for change of value on the component. It acts as if I am the EL of passage is empty, but I do not understand why. I approach this issue the correct way or is there another approach recommended for this? If I approach it as expected, I have help to determine what I am doing wrong?

    ----------------
    error
    <LifecycleImpl> <_handleException> ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase PROCESS_VALIDATIONS 3
    javax.faces.el.EvaluationException: Method not found: {}.ValueChangeListener(javax.faces.event.ValueChangeEvent)
         at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:58)
         at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1256)
         at org.apache.myfaces.trinidad.component.UIXEditableValue.broadcast(UIXEditableValue.java:214)
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         at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
         at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
         at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
         at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:444)
         at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:701)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$ProcessValidationsCallback.invokeContextCallback(LifecycleImpl.java:1422)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:397)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:194)
         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
         at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
         at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
         at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:62)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
         at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
         at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:179)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
         at java.security.AccessController.doPrivileged(Native Method)
         at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
         at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
         at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
         at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
         at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
         at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
    <XmlErrorHandler> <handleError> ADF_FACES-60096:Server Exception during PPR, #1
    javax.servlet.ServletException: Method not found: {}.ValueChangeListener(javax.faces.event.ValueChangeEvent)
         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:270)
         at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
         at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
         at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
         at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:62)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
         at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)
         at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)
         at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:179)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
         at java.security.AccessController.doPrivileged(Native Method)
         at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
         at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
         at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
         at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
         at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
         at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
         at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
         at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
         at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
         at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
    Caused by: javax.faces.el.EvaluationException: Method not found: {}.ValueChangeListener(javax.faces.event.ValueChangeEvent)
         at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:58)
         at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1256)
         at org.apache.myfaces.trinidad.component.UIXEditableValue.broadcast(UIXEditableValue.java:214)
         at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)
         at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)
         at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)
         at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)
         at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)
         at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:444)
         at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:701)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$ProcessValidationsCallback.invokeContextCallback(LifecycleImpl.java:1422)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:397)
         at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:194)
         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
         ... 38 more
    The declarative component level code
    <af:componentDef var="attrs" componentVar="component">
    ...
    <af:inputText label="#{attrs.Label}" id="dc_it1"
                          valueChangeListener="#{attrs.ValueChangeListener}"
                          partialTriggers="#{attrs.partialTriggers}"/>
    ...
    <attribute>
              <attribute-name>
                ValueChangeListener
              </attribute-name>
              <attribute-class>
                javax.el.MethodExpression
              </attribute-class>
            </attribute>
    ...
    test code of the page
    <af:panelFormLayout id="pfl1">
              <af:panelGroupLayout id="pgl1" partialTriggers="cb1">
                <gt1:customInputText id="cit1"
                                          Value="#{backingBeanScope.Section508TestBean.val}"
                                          Label="aeqawefawe"
                                          ValueChangeListener="#{backingBeanScope.Section508TestBean.valueChangeListener}"/>
              </af:panelGroupLayout>
              <af:commandButton text="commandButton 1" id="cb1"
                                actionListener="#{backingBeanScope.Section508TestBean.changeAndRefresh}"
                                partialSubmit="true"/>
              <af:inputText label="Label 1" id="it1" autoSubmit="true"
                            valueChangeListener="#{backingBeanScope.Section508TestBean.valueChangeListener}"/>
            </af:panelFormLayout>

    Hello

    In JavaServer Faces, components raise events to notify the application of a change or user interaction. The declarative elements in Oracle JDeveloper 11g allow the component developer spend events and actions of the method to the page of your. A method's return type and optional arguments that are passed to the call. On the page of your, ExpressionLanguage is used to bind the method property of the component to a managed bean with the expected signature method.

    If you create a method attribute (method tab) and click the button [...] in the field of the method Signature. Define the return 'null' and the parameter type of method like "javax.faces.event.ValueChangeEvent" then you can set up a change of value for her listener in the consumer application

    So what you did is simply not the right approach

    Frank

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