ratingbean.java

仿照著名的petstore写的网上书店

/* Copyright 2006 Sun Microsystems, Inc. All rights reserved. You may not modify, use, reproduce, or distribute this software except in compliance with the terms of the License at: http://developer.sun.com/berkeley_license.html
$Id: RatingBean.java,v 1.10 2007/01/17 18:00:07 basler Exp $ */

package com.sun.javaee.blueprints.petstore.model;
import javax.faces.context.FacesContext;
import java.util.Map;

/**
 *
 * @author basler
 */
public class RatingBean {
    
    private String itemId=null;
    private int grade=0;
    private CatalogFacade cf;
    
    /** Creates a new instance of RatingBean */
    public RatingBean() {
        FacesContext context=FacesContext.getCurrentInstance();
        Map<String,Object> contextMap=context.getExternalContext().getApplicationMap();
        cf=(CatalogFacade)contextMap.get("CatalogFacade");
    }
    
    public String[] getRatingText() {
        return new String[]{"Hate It", "Below Average", "Average", "Above Average", "Love It"};
    }
    
    public void setGrade(int grade) {
        // "itemId" is the primarykey for the product...
        // "grade" is the grade to be store
        String itemId=getItemId();
        if(itemId != null) {
            if(grade>=1){
                //call the catalog facade to update rating
                Item item = cf.getItem(itemId);
                item.addRating(grade);
                cf.updateItem(item);
            }
        }
    }
    
    public int getGrade() {
        return grade;
    }
    
    public void setItemId(String itemId) {
        this.itemId=itemId;
    }
    
    public String getItemId() {
        return itemId;
    }
}