FacesContextListener implementation - xpages

Question

In an attempt to implement the FacesContextListener, which seems to be the ideal place for the current challenge we are facing, I still struggle with its implementation. Attempts to declare it in the faces-config.xml or a construction similar to the ApplicationListener failed (as I probably reference things wrong (except for the class itself of course)).
Can someone provide directions / a short example regarding the implementation of the FacesContextListener?

Answer 1

Create a Java class which implements FacesContextListener interface.
package ch.hasselba.xpages;
import javax.faces.context.FacesContext;
import com.ibm.xsp.event.FacesContextListener;
public class MyFacesContextListener implements FacesContextListener {
public void beforeContextReleased(FacesContext fc) {
System.out.println("beforeContextReleased");
}
public void beforeRenderingPhase(FacesContext fc) {
System.out.println("beforeRenderingPhase");
}
}
Now, add an instance of the class to your XPage:
importPackage( ch.hasselba.xpages )
var fcl = new ch.hasselba.xpages.MyFacesContextListener();
facesContext.addRequestListener( fcl );
Hope this helps!
EDIT:
Here is a Java implementation with an anonymous Listener:
package ch.hasselba.xpages;
import javax.faces.context.FacesContext;
import com.ibm.xsp.context.FacesContextExImpl;
import com.ibm.xsp.event.FacesContextListener;
public class MyObject {
private transient FacesContextListener mFCListener;
public MyObject() {
mFCListener = new FacesContextListener() {
public void beforeContextReleased(FacesContext fc) {
System.out.println("Before Releasing.");
}
public void beforeRenderingPhase(FacesContext fc) {
System.out.println("Before Rendering.");
}
};
FacesContextExImpl fc = (FacesContextExImpl) FacesContext.getCurrentInstance();
fc.addRequestListener( this.mFCListener );
}
}