com.github.yulichang.wrapper.interfaces

接口 Query<Children>

所有超级接口:

Serializable

所有已知实现类:

MPJJoinLambdaQueryWrapper, MPJLambdaWrapper

public interface Query<Children>
extends Serializable

参考 Query

作者:

yulichang

方法概要

限定符和类型	方法和说明
String	getSqlSelect() select sql 片段
<E> Children	select(Class<E> entityClass, Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate) 过滤查询的字段信息(主键除外!)
<E> Children	select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<E,?>... columns) 设置查询字段
Children	selectAll(Class<?> clazz) 查询实体类全部字段
default <S,X> Children	selectAs(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias) ignore
<S> Children	selectAs(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias) 别名查询
default <S> Children	selectAvg(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectAvg(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectAvg(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) MIN()
default <S,X> Children	selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <X> Children	selectCount(boolean condition, Object column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default Children	selectCount(boolean condition, Object column, String alias)
default <S> Children	selectCount(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectCount(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectCount(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <X> Children	selectCount(Object column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default Children	selectCount(Object column, String alias)
default <S> Children	selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) COUNT()
default <S,X> Children	selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <X> Children	selectFunc(BaseFuncEnum funcEnum, Object column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S> Children	selectFunc(BaseFuncEnum funcEnum, Object column, String alias)
default <S> Children	selectFunc(BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectFunc(BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S> Children	selectFunc(BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <X> Children	selectFunc(boolean condition, BaseFuncEnum funcEnum, Object column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
Children	selectFunc(boolean condition, BaseFuncEnum funcEnum, Object column, String alias) 聚合函数查询
default <S> Children	selectFunc(boolean condition, BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectFunc(boolean condition, BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
<S> Children	selectFunc(boolean condition, BaseFuncEnum funcEnum, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
<S> Children	selectIgnore(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?>... columns) 忽略查询字段 用法: selectIgnore(UserDO::getId,UserDO::getSex) 注意: 一个selectIgnore只支持一个对象 如果要忽略多个实体的字段,请调用多次 .selectIgnore(UserDO::getId,UserDO::getSex) .selectIgnore(UserAddressDO::getArea,UserAddressDO::getCity)
default <S> Children	selectLen(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectLen(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectLen(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) LEN()
default <S,X> Children	selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectMax(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectMax(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectMax(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) MAX()
default <S,X> Children	selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectMin(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectMin(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectMin(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) MIN()
default <S,X> Children	selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectQuery(Class<?> clazz, OnFunction function, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> alias) ignore
Children	selectQuery(Class<?> clazz, OnFunction function, String alias) 子查询
default <S> Children	selectSum(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)
default <S,X> Children	selectSum(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectSum(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)
default <S> Children	selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column) SUM()
default <S,X> Children	selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)
default <S,X> Children	selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column, String alias)

方法详细资料

select

<E> Children select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<E,?>... columns)

设置查询字段

参数:

columns - 字段数组

返回:

children

select

<E> Children select(Class<E> entityClass,
                    Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate)

过滤查询的字段信息(主键除外!)

例1: 只要 java 字段名以 "test" 开头的 -> select(i -> i.getProperty().startsWith("test"))

例2: 只要 java 字段属性是 CharSequence 类型的 -> select(TableFieldInfo::isCharSequence)

例3: 只要 java 字段没有填充策略的 -> select(i -> i.getFieldFill() == FieldFill.DEFAULT)

例4: 要全部字段 -> select(i -> true)

例5: 只要主键字段 -> select(i -> false)

参数:

predicate - 过滤方式

返回:

children

selectAs

default <S,X> Children selectAs(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

ignore

selectAs

<S> Children selectAs(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                      String alias)

别名查询

selectQuery

Children selectQuery(Class<?> clazz,
                     OnFunction function,
                     String alias)

子查询

参数:

clazz - 查询的类

function - 查询lambda

alias - 别名

selectQuery

default <S> Children selectQuery(Class<?> clazz,
                                 OnFunction function,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> alias)

ignore

selectFunc

Children selectFunc(boolean condition,
                    BaseFuncEnum funcEnum,
                    Object column,
                    String alias)

聚合函数查询

参数:

funcEnum - 函数枚举 DefaultFuncEnum

column - 函数作用的字段

alias - 别名

selectFunc

<S> Children selectFunc(boolean condition,
                        BaseFuncEnum funcEnum,
                        com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                        String alias)

selectFunc

default <S> Children selectFunc(BaseFuncEnum funcEnum,
                                Object column,
                                String alias)

selectFunc

default <S> Children selectFunc(BaseFuncEnum funcEnum,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                String alias)

selectFunc

default <S,X> Children selectFunc(BaseFuncEnum funcEnum,
                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectFunc

default <S> Children selectFunc(BaseFuncEnum funcEnum,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectFunc

default <X> Children selectFunc(BaseFuncEnum funcEnum,
                                Object column,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectFunc

default <S,X> Children selectFunc(boolean condition,
                                  BaseFuncEnum funcEnum,
                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectFunc

default <S> Children selectFunc(boolean condition,
                                BaseFuncEnum funcEnum,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectFunc

default <X> Children selectFunc(boolean condition,
                                BaseFuncEnum funcEnum,
                                Object column,
                                com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectIgnore

<S> Children selectIgnore(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?>... columns)

忽略查询字段

用法: selectIgnore(UserDO::getId,UserDO::getSex) 注意: 一个selectIgnore只支持一个对象 如果要忽略多个实体的字段,请调用多次

.selectIgnore(UserDO::getId,UserDO::getSex) .selectIgnore(UserAddressDO::getArea,UserAddressDO::getCity)

从以下版本开始:

1.1.3

selectAll

Children selectAll(Class<?> clazz)

查询实体类全部字段

getSqlSelect

String getSqlSelect()

select sql 片段

selectSum

default <S> Children selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

SUM()

selectSum

default <S,X> Children selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectSum

default <S,X> Children selectSum(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectSum

default <S> Children selectSum(boolean condition,
                               com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectSum

default <S,X> Children selectSum(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectSum

default <S,X> Children selectSum(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectCount

default <S> Children selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

COUNT()

selectCount

default <X> Children selectCount(Object column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectCount

default Children selectCount(Object column,
                             String alias)

selectCount

default <S,X> Children selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectCount

default <S,X> Children selectCount(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                   String alias)

selectCount

default <S> Children selectCount(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectCount

default <X> Children selectCount(boolean condition,
                                 Object column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectCount

default Children selectCount(boolean condition,
                             Object column,
                             String alias)

selectCount

default <S,X> Children selectCount(boolean condition,
                                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectCount

default <S,X> Children selectCount(boolean condition,
                                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                   String alias)

selectMax

default <S> Children selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

MAX()

selectMax

default <S,X> Children selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectMax

default <S,X> Children selectMax(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectMax

default <S> Children selectMax(boolean condition,
                               com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectMax

default <S,X> Children selectMax(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectMax

default <S,X> Children selectMax(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectMin

default <S> Children selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

MIN()

selectMin

default <S,X> Children selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectMin

default <S,X> Children selectMin(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectMin

default <S> Children selectMin(boolean condition,
                               com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectMin

default <S,X> Children selectMin(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectMin

default <S,X> Children selectMin(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectAvg

default <S> Children selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

MIN()

selectAvg

default <S,X> Children selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectAvg

default <S,X> Children selectAvg(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectAvg

default <S> Children selectAvg(boolean condition,
                               com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectAvg

default <S,X> Children selectAvg(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectAvg

default <S,X> Children selectAvg(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectLen

default <S> Children selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

LEN()

selectLen

default <S,X> Children selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectLen

default <S,X> Children selectLen(com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)

selectLen

default <S> Children selectLen(boolean condition,
                               com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column)

selectLen

default <S,X> Children selectLen(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<X,?> alias)

selectLen

default <S,X> Children selectLen(boolean condition,
                                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<S,?> column,
                                 String alias)