obtaincoursechaptersevent.java

一个在线学习系统的服务端SERVLET程序

package eols.event.course;

import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import eols.bean.course.*;
import eols.tools.*;
/**
 * <p>Title: Handler of chapters of the specified course retrievement event </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2007</p>
 * <p>Company: </p>
 * @author Fasheng Qiu
 * @version 1.0
 */
public class ObtainCourseChaptersEvent
    extends CourseEventHandlerBase {

    /**
     * Obtain all chapters of the specified course.
     *
     * @param sc Servlet context
     * @param request Http request
     * @param response Http response
     * @param bean JavaBean
     */
    public void process(ServletContext sc, HttpServletRequest request,
                        HttpServletResponse response, HashMap bean) {
        super.process(sc, request, response, bean);
        long catID = RequestUtils.getLongParameter(request, "categoryID", -1);
        long courseID = RequestUtils.getLongParameter(request, "courseID", -1);
        Chapter c = new Chapter(catID, courseID);
        request.setAttribute(
            "coursechapters",
            super.iTran.getStorageManager().getRecords(c));
    }
}