salarybean.java

< J2EE应用开发详解>>一书全部的源代码. 本书基于J2EE 1．4平台

package com.j2ee14.ch18;
import java.util.*;
import javax.ejb.*;
/**
 *用于计算雇员工资的JavaBean。
 */
public class SalaryBean
{
	/**
	 *计算雇员某个月的工资
	 */
	public float calculateSalary(String employeeId,String dateOfMonth) throws Exception
	{
		try
		{
			SalaryFacadeLocal facade=this.getSalaryFacadeLocal();
		    return facade.calculateSalary(employeeId,dateOfMonth);
		}
		catch(ServiceLocatorException e)
		{
			e.printStackTrace();
			throw e;

		}
		catch(CreateException e)
		{
			e.printStackTrace();
			throw e;

		}
	}
	/**
	 *打印所有员工某个月的工资
	 */
	 public java.util.Collection calculateAllSalary(String dateOfMonth) throws Exception
     {
   		
   	   try
		{
			SalaryFacadeLocal facade=this.getSalaryFacadeLocal();
			java.util.Collection c=facade.calculateAllSalary(dateOfMonth);
			Iterator it=c.iterator();
			while(it.hasNext())
			{
				EmployeeSalaryVo e=(EmployeeSalaryVo)it.next();
				System.out.println(e.employeeId);
			}
			return c;				
		}
		catch(ServiceLocatorException e)
		{
	    	throw e;
		}
		catch(CreateException e)
		{
			throw e;
		}
     }
    /**
     *帮助方法，用于获得SalaryFacadeLocal接口
     */
	public SalaryFacadeLocal getSalaryFacadeLocal()throws ServiceLocatorException,javax.ejb.CreateException
    {
    	 SalaryFacadeLocalHome home=(SalaryFacadeLocalHome)new ServiceLocator().getLocalHome("ejb/salaryfacade");
    	 return home.create();
     } 
}