Action Listeners and Managed Bean

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alihammad

I am testing a little code, I am not sure if I am doing the right thing or not, but I am little curious that how can I do that.
Here is the step by step process of what I want to do .

1- In web-client-config-custom.xml I have defined an action, put it in a action-group and attached an action-listener as well.

<config>
      <actions>
         <action id="lookup_table">
            <label>Create Lookup Table</label>
            <image>/images/icons/edit_icon.gif</image>
            <action-listener>#{WebSettingsBean.setActive}</action-listener>            
         </action>
         <action-group id="browse_create_menu">
            <action idref="lookup_table" />
         </action-group>
         
      </actions>
   </config>‍‍‍‍‍‍‍‍‍‍‍‍‍

2- Created a Java class "WebSettingsBean", a method "setAction" is defined in it that does nothing but a sysout…

public void setActive(ActionEvent event) {
   System.out.println("— in setActive —");   }
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3- defined a managed  bean in faces-config-custom

   <managed-bean>
      <managed-bean-name>WebSettingsBean</managed-bean-name>
      <managed-bean-class>com.someco.web.bean.WebSettingsBean</managed-bean-class>
      <managed-bean-scope>session</managed-bean-scope>
      <managed-property>
         <property-name>browseBean</property-name>
         <value>#{BrowseBean}</value>
      </managed-property>
   </managed-bean>
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This examples works fine and when I click on the link output line is printed on the server console.

4 -Now I have another class "DummyClass" created in the same package as the above class it has a fucntion function "getRandValue"

public Integer getRandValue(){
      int i = 123;
      return new Integer(i);      
}   
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5- I modified the function mentioned defined in step 2

public DummyClass setActive(ActionEvent event) {
      DummyClass obj = new DummyClass();
      return obj;
   }
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Now this function return a DummyClass type object.

My question here is that how can action-listener call getRandValue function so that I can print the Integer value '123' on the console.

I modified action-listener like this ( which is not right i think )

<action-listener>#{WebSettingsBean.setActive.getRandValue}</action-listener>   

and when run I get this exception

javax.faces.el.EvaluationException: Exception while invoking expression #{WebSettingsBean.setActive.getRandValue}
caused by:
javax.faces.el.PropertyNotFoundException: Bean: com.someco.web.bean.WebSettingsBean, property: setActive

Hide Details

javax.faces.el.EvaluationException: Exception while invoking expression #{WebSettingsBean.setActive.getRandValue}
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:168)
at javax.faces.component.UICommand.broadcast(UICommand.java:89)
at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:97)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:171)
at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.alfresco.web.app.servlet.AuthenticationFilter.doFilter(AuthenticationFilter.java:81)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.el.PropertyNotFoundException: Bean: com.someco.web.bean.WebSettingsBean, property: setActive
at org.apache.myfaces.el.PropertyResolverImpl.getPropertyDescriptor(PropertyResolverImpl.java:500)
at org.apache.myfaces.el.PropertyResolverImpl.getPropertyDescriptor(PropertyResolverImpl.java:472)
at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:436)
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:85)
at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:535)
at org.apache.myfaces.el.ValueBindingImpl.resolveToBaseAndProperty(ValueBindingImpl.java:473)
at org.apache.myfaces.el.MethodBindingImpl.resolveToBaseAndProperty(MethodBindingImpl.java:183)
at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:117)
… 22 more ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

What more should I do to get the value printed on the console

mrogers

Try
#{WebSettingsBean.active.randValue}