src/sportmeeting/service/TeacherServiceImpl.java

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package sportmeeting.service;

import java.util.List;

import sportmeeting.dao.BaseDao;
import sportmeeting.entity.Teacher;

public class TeacherServiceImpl implements TeacherService{

	private BaseDao dao;

	public List<Teacher> getTeacherList(String hql, int pageNo, int pageSize){
		return (List<Teacher>)dao.query(hql, pageNo, pageSize);
	}
	
	public boolean teacherExist(String teaname){
		String hql = "from Teacher where teaname = '" + teaname +"' and deleted = 0";
		try {
			Teacher teacher = (Teacher)dao.loadObject(hql);
			if(teacher.getTeaname() != null){
				return true;
			}
		} catch (Exception e) {
			return false;
		}
		return false;
	}
	
	public boolean addTeacher(Teacher teacher){
		try {
			dao.saveOrUpdate(teacher);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
	
	public void updateTeacher(Teacher teacher){
		dao.saveOrUpdate(teacher);
	}
	
	public Teacher teacherById(Integer id){
		return (Teacher)dao.getById(Teacher.class, id);
	}
	
	public int countTeacher(String hql){
		return dao.query(hql).size();
	}
	
	public BaseDao getDao() {
		return dao;
	}

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