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53 lines
801 B
53 lines
801 B
package com.demo.dao;
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/**
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* 公共dao层方法
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* @param <T>
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*/
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public interface CrudDao<T> {
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/**
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* 删除数据
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* @param id
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* @return
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*/
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public int deleteByPrimaryKey(int id);
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/**
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* 插入数据
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* @param entity
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* @return
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*/
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public int insert(T entity);
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/**
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* 动态保存数据
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* @param entity
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* @return
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*/
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public int insertSelective(T entity);
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/**
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* 获取单条数据
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* @param id
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* @return
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*/
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public T selectByPrimaryKey(int id);
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/**
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* 更新数据
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* @param entity
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* @return
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*/
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public int updateByPrimaryKey(T entity);
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/**
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* 动态更新
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* @param entity
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* @return
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*/
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public int updateByPrimaryKeySelective(T entity);
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}
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