courseejb.java

学生注册— 本模块允许新的学生创建和维护他们的帐户信息

package day21ex.course;
import javax.ejb.*;

public abstract class CourseEJB implements EntityBean {
   protected EntityContext ctx;
   public CourseEJB() {
   }
   public abstract String getCourseId();
   public abstract void setCourseId(String courseID);
   public abstract String getName();
   public abstract void setName(String name);
   public abstract double getFee();     
   public abstract void setFee(double fee);     
   public void ejbActivate() {
      System.out.println("ejbActivate() called.");
   }
   public void ejbRemove() {
      System.out.println("ejbRemove() called.");
   }
   public void ejbPassivate() {
      System.out.println("ejbPassivate () called.");
   }
   public void ejbLoad() {
      System.out.println("ejbLoad() called.");
   }
   public void ejbStore() {
      System.out.println("ejbStore() called.");
   }
   public void setEntityContext(EntityContext ctx) {
      System.out.println("setEntityContext called");
      this.ctx = ctx;
   }
   public void unsetEntityContext() {
      System.out.println("unsetEntityContext called");
      this.ctx = null; 
   }
   public void ejbPostCreate(String courseID, String name, double fee) {
      System.out.println("ejbPostCreate() called");
   }
   public String ejbCreate(String courseID, String name, double fee) 
                                               throws CreateException {
      System.out.println("ejbCreate() called");

      setCourseId(courseID);
      setName(name);
      setFee(fee);
      return null;
   }

}