shopcommodityprocejavabean.java

使用EJB + JSP + JavaBean + Servlet开发的一个远程销售通用平台

package flowershoporder.ejb;
import java.util.*;
import javax.ejb.*;
import javax.sql.*;
import java.sql.*;
import javax.naming.*;
import flowershoporder.*;

//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
//这是EntityBean（ShopCommodityProcEJB）的Bean Class类
//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

public class ShopCommodityProcEJavaBean implements EntityBean
  {
   public String commodityid = null;
   public String commodityname = null;
   public int unitprice = 0;
   private EntityContext entitycontext = null;

   //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
   //定义回调方法（callback method）
   //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

   public void setEntityContext(EntityContext context)
     {
      this.entitycontext = entitycontext;
     }

   public void unsetEntityContext()
     {
      entitycontext = null;
     }

   public String ejbCreate(String commodityid) throws DuplicateKeyException, CreateException
     {
      this.commodityid = commodityid;
      this.commodityname = "";
      this.unitprice = 0;
      return null;
     }

   public void ejbPostCreate(String commodityid)
     {}

   public String ejbCreate(String commodityid,String commodityname,int unitprice) throws DuplicateKeyException, CreateException
     {
      this.commodityid = commodityid;
      this.commodityname = commodityname;
      this.unitprice = unitprice;
      return null;
     }

   public void ejbPostCreate(String commodityid,String commodityname,int unitprice)
     {}

   public void ejbLoad()
     {}

   public void ejbStore()
     {}

   public void ejbActivate()
     {
      commodityid = (String)entitycontext.getPrimaryKey();
     }

   public void ejbPassivate()
     {
      commodityid = null;
      commodityname = null;
      unitprice = 0;
     }

   public void ejbRemove()
     {}

   //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
   //定义business方法，这里的business方法同ReaderInfoRemoteInt接口中
   //business方法要一一对应
   //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

   public void setCommodityname(String commodityname)
     {
      this.commodityname = commodityname;
     }

   public void setUnitprice(int unitprice)
     {
      this.unitprice = unitprice;
     }

   public void setCommodityInfomation(String commodityname,int unitprice)
     {
      this.commodityname = commodityname;
      this.unitprice = unitprice;
     }

   public String getCommodityname()
     {
      return commodityname;
     }

   public int getUnitprice()
     {
      return unitprice;
     }

   public ShopCommodity getCommodityInfomation()
     {
      ShopCommodity shopcommodity = new ShopCommodity(commodityid,commodityname,unitprice);
      return shopcommodity;
     }
  }