/**
 * @ClassName: GenericDao
 * @Description: 所有自定义Dao的顶级接口, 封装常用的增删查改操作
 * Entity : 代表数据库中的表 映射的Java对象类型
 * PK :代表对象的主键类型
 * Page:分页对象
 * @author: yaozhenhua
 * @date: 2019/3/20 11:08
 */
public interface GenericDao<Entity, PK, Page> {
    /**
     * 插入对象
     *
     * @param entity
     * @author: yaozhenhua  2019/3/20 11:14
     */
    int insertSelective(Entity entity);
    
    /**
     *更新对象
     *
     * @param entity
     * @author: yaozhenhua  2019/3/20 11:16
     */
    int updateSelectiveByPrimaryKey(Entity entity);
    
    /**
     *通过主键删除对象
     *
     * @param id
     * @author: yaozhenhua  2019/3/20 11:18
     */
    int deleteByPrimaryKey(@Param(value = "id") PK id);
    
    /**
     *通过主键查询对象
     *
     * @param id
     * @author: yaozhenhua  2019/3/20 11:20
     */
    Entity selectByPrimaryKey(@Param(value = "id") PK id);
    
    /**
     *查询列表
     *
     * @param
     * @author: yaozhenhua  2019/3/20 11:26
     */
    List<Entity> listSelective();
    
    /**
     *分页查询列表
     *
     * @param page
     * @author: yaozhenhua  2019/3/20 11:26
     */
    List<Entity> listSelectiveByPage(Page page);
    
    /**
     *查询个数
     *
     * @param
     * @author: yaozhenhua  2019/3/20 11:28
     */
    int countSelective();
    
}

/**
 * @ClassName: GenericService
 * @Description: 所有自定义Service的顶级接口, 封装常用的增删查改操作
 * @author: yaozhenhua
 * @date: 2019/3/20 11:29
 */
public abstract class GenericService<Entity, PK, Page> {
    public abstract GenericDao<Entity, PK, Page> getDao();
    
    /**
     *插入对象
     *
     * @param entity
     * @author: yaozhenhua  2019/3/20 12:07
     */
    public int insert(Entity entity){
        return getDao().insertSelective(entity);
    }

    /**
     *更新对象
     *
     * @param entity
     * @author: yaozhenhua  2019/3/20 12:09
     */
    public int update(Entity entity){
        return getDao().updateSelectiveByPrimaryKey(entity);
    }
    
    /**
     *删除对象
     *
     * @param id
     * @author: yaozhenhua  2019/3/20 12:10
     */
    public int delete(PK id){
        return getDao().deleteByPrimaryKey(id);
    }
    
    /**
     *通过主键, 查询对象
     *
     * @param id
     * @author: yaozhenhua  2019/3/20 12:11
     */
    public Entity selectById(PK id){
        return getDao().selectByPrimaryKey(id);
    }
    
    /**
     *查询列表
     *
     * @param
     * @author: yaozhenhua  2019/3/20 12:13
     */
    public List<Entity> listSelective(){
        return getDao().listSelective();
    }
    
    /**
     *查询列表并分页
     *
     * @param page
     * @author: yaozhenhua  2019/3/20 12:14
     */
    public List<Entity> listSelectiveByPage(Page page){
        return getDao().listSelectiveByPage(page);
    }
    
    /**
     *查询个数
     *
     * @param
     * @author: yaozhenhua  2019/3/20 12:15
     */
    public int countSelective(){
        return getDao().countSelective();
    }
}