公共Service的抽取小例

package cn.sxx.service;

import java.util.List;

public interface BaseService<T,Q> {
	public void save(T t);

	public void update(T t);

	public T getObj(Integer id);

	public void delete(Integer id);

	public void delete(T t);

	public List<T> queryObjByCondition(Q q);

}

　　其实现类

package cn.sxx.service.impl;

import java.util.List;

import cn.sxx.dao.BaseDao;
import cn.sxx.service.BaseService;

public class BaseServiceImpl<T,Q> implements BaseService<T, Q> {

    BaseDao<T,Q> baseDao;

    @Override
    public void save(T t) {
        baseDao.save(t);
    }

    @Override
    public void update(T t) {
        baseDao.update(t);
    }

    @Override
    public T getObj(Integer id) {
        return (T) baseDao.getObj(id);
    }

    @Override
    public void delete(Integer id) {
        baseDao.delete(id);
    }

    @Override
    public void delete(T t) {
        baseDao.delete(t);
    }

    @Override
    public List<T> queryObjByCondition(Q q) {
        return baseDao.queryObjByCondition(q);
    }

}