studentserviceimpl.java

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/*
 * StudentServiceImpl.java
 *
 * Created on 2006年5月20日, 下午5:37
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package enova.service.impl;

import java.util.*;
import enova.dao.*;
import enova.pojo.*;
import enova.service.*;

/**
 *
 * @author vlinux
 */
public class StudentServiceImpl implements StudentService {
    
    private StudentDao studentDao;
    
    /** Creates a new instance of StudentServiceImpl */
    public StudentServiceImpl(StudentDao studentDao) {
        this.studentDao = studentDao;
    }
    
    /*通过学生ID获取学生*/
    public Student get(Integer studentId) throws StoreException{
        try{
            return studentDao.get(studentId);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*更新或者创建一个学生*/
    public void updateOrCreate(Student student) throws UniqueException, StoreException{
        try{
            studentDao.updateOrInsert(student);
        }catch(DataAccessException dae){
            throw new StoreException();
        }catch(RecordExistException ree){
            throw new UniqueException();
        }
    }
    
    /*通过学生ID删除学生*/
    public void delete(Integer studentId) throws StoreException, NotExistException{
        try{
            if( this.get(studentId)==null )
                throw new NotExistException();
            studentDao.delete(studentId);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*学生登录验证，如果密码错误抛出密码错误异常*/
    public Student loginVerify(String number,String password) throws StoreException, PasswordErrorException{
        try{
            Student student = studentDao.loginVerify(number,password);
            if( student==null )
                throw new PasswordErrorException();
            return student;
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    /*修改密码，抛出密码错误异常*/
    public void changePassword(String number,String oldPassword,String newPassword)
            throws PasswordErrorException, StoreException{
        Student student = loginVerify(number,oldPassword);
        student.setPassword(newPassword);
        try{
            updateOrCreate(student);
        }catch(UniqueException ue){
            //
        }
    }
    
    /*通过班级ID获取学生，按照学号排序*/
    public List getByClassId(Integer classId) throws StoreException{
        try{
            return studentDao.getByClassIdSortNumber(classId);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    public List getByName(String name) throws StoreException{
        try{
            if( name.length()==0 )
                return studentDao.getByName(null);
            return studentDao.getByName(name);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    public List getByClassIdAndName(Integer classId,String name) throws StoreException{
        try{
            return studentDao.getByClassIdAndName(classId,name);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
    
    public List getByNumber(String number) throws StoreException{
        try{
            return studentDao.getByNumber(number);
        }catch(DataAccessException dae){
            throw new StoreException();
        }
    }
}