ViewActionBean.java

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package com.sun.faces.test.servlet30.facelets;

import java.util.Map;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.RequestScoped;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.ActionEvent;
import javax.faces.event.ActionListener;

@RequestScoped
@ManagedBean
public class ViewActionBean {

    @ManagedProperty(value = "#{facesContext}")
    private FacesContext context;

    public String action() {
        return "viewActionResult";
    }

    public String pageA() {
        getContext().getExternalContext().getRequestMap().put("message", "pageA action");
        return "pageA";
    }

    public String pageAExplicitRedirect() {
        getContext().getExternalContext().getRequestMap().put("message", "pageA explicit redirect");
        return "pageAExplicitRedirect";
    }

    public String returnEmpty() {
        getContext().getExternalContext().getRequestMap().put("message", "pageA empty");
        return "";
    }

    public String returnNull() {
        getContext().getExternalContext().getRequestMap().put("message", "pageA null");
        return null;
    }

    public FacesContext getContext() {
        return context;
    }

    public void setContext(FacesContext context) {
        this.context = context;
    }

    private static class ActionListenerImpl implements ActionListener {

        private final String id;

        private ActionListenerImpl(String id) {
            this.id = id;
        }

        @Override
        public void processAction(ActionEvent event) throws AbortProcessingException {
            FacesContext context = FacesContext.getCurrentInstance();
            Map<String, Object> sessionMap = context.getExternalContext().getSessionMap();

            String message = (String) sessionMap.get("message");
            message = (null == message) ? "" : message + " ";
            message = message + id + " " + event.getComponent().getId();
            sessionMap.put("message", message);
        }
    }

    public ActionListener getActionListener1() {
        return new ActionListenerImpl("1");
    }

    public ActionListener getActionListener2() {
        return new ActionListenerImpl("2");
    }

    public void actionListenerMethod(ActionEvent event) {
        ActionListenerImpl actionListener = new ActionListenerImpl("method");
        actionListener.processAction(event);
    }
}