src/sportmeeting/service/StudentServiceImpl.java

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package sportmeeting.service;

import java.util.List;

import sportmeeting.dao.BaseDao;
import sportmeeting.entity.Student;

public class StudentServiceImpl implements StudentService{

	private BaseDao dao;

	public List<Student> getStudentList(String hql, int pageNo, int pageSize){
		return (List<Student>)dao.query(hql, pageNo, pageSize);
	}
	
	public List<Student> getStudentAll(String hql){
		return (List<Student>)dao.query(hql);
	}
	
	public boolean studentExist(String stuno){
		String hql = "from Student where stuno = '" + stuno +"' and deleted = 0";
		try {
			Student student = (Student)dao.loadObject(hql);
			if(student.getStuno() != null){
				return true;
			}
		} catch (Exception e) {
			return false;
		}
		return false;
	}
	
	public boolean addStudent(Student student){
		try {
			dao.saveOrUpdate(student);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	public void updateStudent(Student student){
		dao.saveOrUpdate(student);
	}
	
	public Student studentById(Integer id){
		return (Student)dao.getById(Student.class, id);
	}
	
	public int countStudent(String hql){
		return dao.query(hql).size();
	}
	
	public BaseDao getDao() {
		return dao;
	}

	public void setDao(BaseDao dao) {
		this.dao = dao;
	}