118 lines
2.6 KiB
Java
118 lines
2.6 KiB
Java
package com.imyeyu.spring.mapper;
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import com.imyeyu.spring.util.SQLProvider;
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import org.apache.ibatis.annotations.DeleteProvider;
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import org.apache.ibatis.annotations.InsertProvider;
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import org.apache.ibatis.annotations.Options;
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import org.apache.ibatis.annotations.SelectProvider;
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import org.apache.ibatis.annotations.UpdateProvider;
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import java.util.List;
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import java.util.Map;
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/**
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* 基本 SQL 映射，子接口可以不实现
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*
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* @author 夜雨
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* @version 2021-07-16 09:40
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*/
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public interface BaseMapper<T, P> {
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/**
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* 排序方式
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*
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* @author 夜雨
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* @version 2023-09-05 22:14
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*/
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enum OrderType {
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ASC,
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DESC
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}
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static final String NOT_DELETE = " AND `deleted_at` IS NULL ";
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static final String LIMIT_1 = " LIMIT 1";
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static final String UNIX_TIME = " FLOOR(UNIX_TIMESTAMP(NOW(3)) * 1000) ";
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static final String PAGE = NOT_DELETE + " LIMIT #{offset}, #{limit}";
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/**
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* 统计数据量
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*
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* @return 数据量
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*/
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@SelectProvider(type = SQLProvider.class, method = "count")
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long count();
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default List<T> list(long offset, int limit) {
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return listOrder(offset, limit, null);
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}
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/**
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* 获取部分数据
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*
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* @param offset 偏移
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* @param limit 数据量
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* @return 数据列表
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*/
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@SelectProvider(type = SQLProvider.class, method = "listOrder")
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List<T> listOrder(long offset, int limit, Map<String, OrderType> orderMap);
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@SelectProvider(type = SQLProvider.class, method = "listAll")
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List<T> listAll();
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/**
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* 创建数据。默认自增主键为 id，如需修改请重写此接口
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*
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* @param t 数据对象
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*/
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@InsertProvider(type = SQLProvider.class, method = "insert")
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@Options(useGeneratedKeys = true, keyProperty = "id")
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void insert(T t);
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/**
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* 根据 ID 获取对象
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*
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* @param id 索引
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* @return 数据对象
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*/
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@SelectProvider(type = SQLProvider.class, method = "select")
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T select(P id);
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@SelectProvider(type = SQLProvider.class, method = "selectByExample")
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T selectByExample(T t);
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@SelectProvider(type = SQLProvider.class, method = "selectAllByExample")
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List<T> selectAllByExample(T t);
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/**
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* 修改数据
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*
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* @param t 数据对象
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*/
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@UpdateProvider(type = SQLProvider.class, method = "update")
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void update(T t);
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@UpdateProvider(type = SQLProvider.class, method = "updateSelective")
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void updateSelective(T t);
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/**
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* 软删除
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*
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* @param id 索引
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*/
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@UpdateProvider(type = SQLProvider.class, method = "delete")
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void delete(P id);
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/**
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* 销毁（物理删除）
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*
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* @param id 索引
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*/
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@DeleteProvider(type = SQLProvider.class, method = "destroy")
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void destroy(P id);
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}
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