Package io.r2mo.dbe.mybatisplus

Class DBJ<T>

java.lang.Object

io.r2mo.dbe.common.DBEJ<com.github.yulichang.query.MPJQueryWrapper<T>,T,com.github.yulichang.base.MPJBaseMapper<T>>

io.r2mo.dbe.mybatisplus.DBJ<T>

public class DBJ<T>
extends io.r2mo.dbe.common.DBEJ<com.github.yulichang.query.MPJQueryWrapper<T>,T,com.github.yulichang.base.MPJBaseMapper<T>>

Author:

lang : 2025-10-23

Field Summary

Fields inherited from class io.r2mo.dbe.common.DBEJ

opJoin, ref

Method Summary

Modifier and Type	Method	Description
protected void	afterConstruct()
DBJ<T>	alias(Class<?> entityCls, String field, String alias)
DBJ<T>	alias(String table, String field, String alias)
protected io.r2mo.base.dbe.operation.QrAnalyzer<com.github.yulichang.query.MPJQueryWrapper<T>>	analyzer()
static <T> DBJ<T>	of(io.r2mo.base.dbe.common.DBRef ref, JoinProxy<T> mapper)
static <T> DBJ<T>	of(io.r2mo.base.dbe.Join meta, JoinProxy<T> baseMapper)	常见构造，可直接使用

Methods inherited from class io.r2mo.dbe.common.DBEJ

count, count, count, count, create, executor, findAll, findExist, findExist, findFull, findFull, findMany, findMany, findMany, findMany, findManyBy, findManyIn, findManyIn, findOne, findOne, findOne, findOne, findOne, findOneBy, findPage, findPage, removeBy, removeBy, removeBy, removeBy, removeBy, updateBy, updateBy, updateBy, updateBy, updateBy

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

afterConstruct

protected void afterConstruct()

analyzer

protected io.r2mo.base.dbe.operation.QrAnalyzer<com.github.yulichang.query.MPJQueryWrapper<T>> analyzer()

Specified by:

analyzer in class io.r2mo.dbe.common.DBEJ<com.github.yulichang.query.MPJQueryWrapper<T>,T,com.github.yulichang.base.MPJBaseMapper<T>>

alias

public DBJ<T> alias(String table,
 String field,
 String alias)

alias

public DBJ<T> alias(Class<?> entityCls,
 String field,
 String alias)

of

public static <T> DBJ<T> of(io.r2mo.base.dbe.Join meta,
 JoinProxy<T> baseMapper)

常见构造，可直接使用

     DBJ.of(Join.of(
          classFrom, from,
          classTo, to,
     )).xxxMethod(???)
 

此方法在调用过程中会直接根据 Join 中的定义来构造节点相关信息，需要注意一点就是此处使用 DBLoad 构造 的节点信息本身是完全独立的节点，和 DBRef 以及 DBJ 的数量无关，而加载流程中会直接截断加载，即直接通 过实际实现层来加载 DBNode 的基本信息，由于存在全局缓存，所以不会存在重复加载的问题。最终调试的时候要注意： 全局缓存中的 DBNode 是共享的！

Parameters:

meta - JOIN 元信息

baseMapper - EXECUTOR

Returns:

当前引用

of

public static <T> DBJ<T> of(io.r2mo.base.dbe.common.DBRef ref,
 JoinProxy<T> mapper)