InvalidatedBean.java

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package com.sun.faces.test.servlet.sessionscope;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.context.FacesContext;

/**
 * A ViewScoped bean testing session invalidation functionality.
 */
@ManagedBean(name = "invalidatedBean")
@SessionScoped
public class InvalidatedBean {

    /**
     * Stores the text.
     */
    private String text;

    /**
     * Constructor.
     */
    public InvalidatedBean() {
        this.text = "This is from the constructor";
    }

    /**
     * Post-construct.
     *
     */
    @PostConstruct
    public void init() {
        FacesContext.getCurrentInstance().getExternalContext().getApplicationMap().remove("count");
        this.text = "This is from the @PostConstruct";
    }

    /**
     * Pre-destroy
     */
    @PreDestroy
    public void destroy() {
        /*
         * For the purpose of the test we can actually ask for the current 
         * instance of the FacesContext, because we trigger invalidating of the 
         * session through a JSF page, however in the normal case of session 
         * invalidation this will NOT be true. So this means that normally the 
         * @PreDestroy annotated method should not try to use 
         * FacesContext.getCurrentInstance().
         */
        if (FacesContext.getCurrentInstance() != null) {
            Integer count = 0;
            if (FacesContext.getCurrentInstance().getExternalContext().getApplicationMap().containsKey("count")) {
                count = (Integer) FacesContext.getCurrentInstance().getExternalContext().getApplicationMap().get("count");
            }
            count++;
            FacesContext.getCurrentInstance().getExternalContext().getApplicationMap().put("count", count);
        }
    }

    /**
     * Get the text.
     */
    public String getText() {
        return this.text;
    }
}