Use of JSF Phase Listener?

Question

There are many many examples of how to 'access' the six phases of the JSF Life Cycle.
I have a simple page that has two input text fields and one command button.
I would like to be able to access the contents of the text fields on the page in Phase 2 (APPLY REQUEST VALUES), or other phases. After quite a bit of time I am posting this in the hopes that someone could point me in the correct direction to do this or perhaps someone has a simple example.
Thanks - Casey

Answer 1

Code for phase listener, backing bean and output are at the bottom of this note.
The text field has a Id property of lname. I assume you are referring about using findComponent() against the backing bean that has a corresponding property (RichInputText) for the text field?
When I run the app I am getting a null for the objReference for the backing bean (line 16 in the output) - see output which then causes a NullPointerException.
Suggestions on how to get the reference to the backing bean, or the component that will contain the data for the input text field?
Thanks again - Casey
The code I am using in the Phase Listener class is:*
+public class MyPhaseListener implements PhaseListener {+
+public MyPhaseListener() {+
+}+
+public void beforePhase(PhaseEvent pe) {+
if (pe.getPhaseId() == PhaseId.RESTORE_VIEW)
System.out.println("Processing new  Request!");
System.out.println("before - " pe.getPhaseId().toString());+
+if (pe.getPhaseId().toString().equals("APPLY_REQUEST_VALUES 2")) {+
System.out.println("lkjhlkjhlkjhlkjh");
+}+
+if (pe.getPhaseId().toString().equals("APPLY_REQUEST_VALUES 2")) {+
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
ExpressionFactory expressionFactory =
facesContext.getApplication().getExpressionFactory();
ValueExpression exp =
expressionFactory.createValueExpression(elContext,
+"#{BackingBean}",+
BackingBean.class);
BackingBean nameData = (BackingBean)exp.getValue(elContext);
System.out.println(nameData);
System.out.println(nameData.getLname().findComponent("lname"));
+}+
+}+
+public void afterPhase(PhaseEvent pe) {+
System.out.println("after - " pe.getPhaseId().toString());+
if (pe.getPhaseId() == PhaseId.RENDER_RESPONSE)
System.out.println("Done with Request!\n");
+}+
+public PhaseId getPhaseId() {+
return PhaseId.ANY_PHASE;
+}+
+}+
The code for the backing bean is:*
package view;
import oracle.adf.view.rich.component.rich.input.RichInputText;
+public class BackingBean {+
private RichInputText lname;
+public BackingBean() {+
+}+
+public void setLname(RichInputText lname) {+
System.out.println("In setLName");
this.lname = lname;
+}+
+public RichInputText getLname() {+
System.out.println("In getLName");
return lname;
+}+
+}+
Output from System.out.println statements:*
Processing new  Request!
before - RESTORE_VIEW 1
after - RESTORE_VIEW 1
before - RENDER_RESPONSE 6
In getLName
In setLName
after - RENDER_RESPONSE 6
Done with Request!
Processing new  Request!
before - RESTORE_VIEW 1
In setLName
after - RESTORE_VIEW 1
before - APPLY_REQUEST_VALUES 2
lkjhlkjhlkjhlkjh
null
after - APPLY_REQUEST_VALUES 2
+<Jul 13, 2009 8:27:14 AM CDT> <Error> <HTTP> <BEA-101017> <[weblogic.servlet.internal.WebAppServletContext@857c75 - appName: 'Application8', name: 'Application8-ViewController-context-root', context-path: '/Application8-ViewController-context-root', spec-version: '2.5', request: weblogic.servlet.internal.ServletRequestImpl@1c70722[+
+POST /Application8-ViewController-context-root/faces/untitled1.jspx?_adf.ctrl-state=793257214_3 HTTP/1.1+
+Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/xaml+xml, application/vnd.ms-xpsdocument, application/x-ms-xbap, application/x-ms-application, application/x-shockwave-flash, */*+
+Referer: http://127.0.0.1:7101/Application8-ViewController-context-root/faces/untitled1.jspx?_adf.ctrl-state=793257214_3+
+Accept-Language: en-us,de;q=0.5+
+Content-Type: application/x-www-form-urlencoded+
+UA-CPU: x86+
+Accept-Encoding: gzip, deflate+
+User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648)+
+Content-Length: 269+
+Connection: Keep-Alive+
+Cache-Control: no-cache+
+Cookie: JSESSIONID=wBr1Kb2GrCDpnhkNNgQyTvJvSjlnWHyvnq9gNWT92kvsFYlGC1Jl!1059440035+
+]] Root cause of ServletException.+
java.lang.NullPointerException
+     at view.MyPhaseListener.beforePhase(MyPhaseListener.java:42)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:228)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:175)+
+     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)+
+     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)+
+     Truncated. see log file for complete stacktrace+