org.openingo.mp.ext

Class MpModelExt<T extends MpModelExt<?>>

java.lang.Object

com.baomidou.mybatisplus.extension.activerecord.Model<T>

org.openingo.mp.ext.MpModelExt<T>

All Implemented Interfaces:

Serializable

public abstract class MpModelExt<T extends MpModelExt<?>>
extends com.baomidou.mybatisplus.extension.activerecord.Model<T>

MyBatis Plus Extensions: ModelExt

Author:

zcq(at)openingo.org

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MpModelExt()

Method Summary

Modifier and Type	Method and Description
<V> T	allEq(java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter, Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params) 字段过滤接口，传入多参数时允许对参数进行过滤
<V> T	allEq(java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter, Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params, boolean null2IsNull) 字段过滤接口，传入多参数时允许对参数进行过滤
<V> T	allEq(boolean condition, java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter, Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params, boolean null2IsNull) 字段过滤接口，传入多参数时允许对参数进行过滤
<V> T	allEq(boolean condition, Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params, boolean null2IsNull) map 所有非空属性等于 =
<V> T	allEq(Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params) map 所有非空属性等于 =
<V> T	allEq(Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params, boolean null2IsNull) map 所有非空属性等于 =
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	and(boolean condition, java.util.function.Consumer<Children> consumer) AND 嵌套
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	and(java.util.function.Consumer<Children> consumer) AND 嵌套
T	between(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val1, Object val2) BETWEEN 值1 AND 值2
T	between(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val1, Object val2) BETWEEN 值1 AND 值2
T	by(T t) 基于t进行操作
static <T extends MpModelExt<?>> T	dao(Class<T> clazz) 获取dao对象，每次生成一个新的
Boolean	doDelete() 执行Delete操作
List<T>	doQuery() 执行Query操作
T	doQueryLimitOne() 执行Select One Limit 1 Query操作
T	doQueryOne() 执行Select One Query操作
Boolean	doUpdate() 执行Update操作
T	eq(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 等于 =
T	eq(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 等于 =
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	func(boolean condition, java.util.function.Consumer<Children> consumer) 消费函数
T	ge(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 大于等于 >=
T	ge(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 大于等于 >=
T	groupBy(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 分组：GROUP BY 字段, ...
T	groupBy(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 分组：GROUP BY 字段, ...
T	gt(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 大于 >
T	gt(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 大于 >
T	in(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Collection<?> coll) 字段 IN (value.get(0), value.get(1), ...)
T	in(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Collection<?> coll) 字段 IN (value.get(0), value.get(1), ...)
T	isNotNull(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column) 字段 IS NOT NULL
T	isNotNull(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column) 字段 IS NOT NULL
T	isNull(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column) 字段 IS NULL
T	isNull(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column) 字段 IS NULL
T	le(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 小于等于 <=
T	le(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 小于等于 <=
T	like(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '%值%'
T	like(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '%值%'
T	likeLeft(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '%值'
T	likeLeft(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '%值'
T	likeRight(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '值%'
T	likeRight(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) LIKE '值%'
T	lt(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 小于 <
T	lt(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 小于 <
T	ne(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 不等于 <>
T	ne(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 不等于 <>
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	nested(boolean condition, java.util.function.Consumer<Children> consumer) 正常嵌套 不带 AND 或者 OR
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	nested(java.util.function.Consumer<Children> consumer) 正常嵌套 不带 AND 或者 OR
T	notBetween(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val1, Object val2) NOT BETWEEN 值1 AND 值2
T	notBetween(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val1, Object val2) NOT BETWEEN 值1 AND 值2
T	notIn(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Collection<?> coll) 字段 NOT IN (value.get(0), value.get(1), ...)
T	notIn(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Collection<?> coll) 字段 NOT IN (value.get(0), value.get(1), ...)
T	notLike(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) NOT LIKE '%值%'
T	notLike(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) NOT LIKE '%值%'
T	or() 拼接 OR
T	or(boolean condition) 拼接 OR
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	or(boolean condition, java.util.function.Consumer<Children> consumer) OR 嵌套
<Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T	or(java.util.function.Consumer<Children> consumer) OR 嵌套
T	orderBy(boolean condition, boolean isAsc, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	orderBy(boolean isAsc, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	orderByAsc(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	orderByAsc(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	orderByDesc(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	orderByDesc(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) 排序：ORDER BY 字段, ...
T	select(Class<T> entityClass, java.util.function.Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate) 过滤查询的字段信息(主键除外!)
T	select(java.util.function.Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate) 过滤查询的字段信息(主键除外!)
T	select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns) SELECT 部分 SQL 设置
T	set(boolean condition, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 设置 更新 SQL 的 SET 片段
T	set(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column, Object val) 设置 更新 SQL 的 SET 片段
String	toJson() 转换为JsonString

Methods inherited from class com.baomidou.mybatisplus.extension.activerecord.Model

closeSqlSession, delete, deleteById, deleteById, insert, insertOrUpdate, pkVal, selectAll, selectById, selectById, selectCount, selectList, selectOne, selectPage, sql, sqlSession, sqlStatement, sqlStatement, update, updateById

Methods inherited from class java.lang.Object

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

Constructor Detail

MpModelExt

public MpModelExt()

Method Detail

dao

public static <T extends MpModelExt<?>> T dao(Class<T> clazz)

获取dao对象，每次生成一个新的

Type Parameters:

T -

Parameters:

clazz -

Returns:

T

doQuery

public List<T> doQuery()

执行Query操作

Returns:

List

doQueryLimitOne

public T doQueryLimitOne()

执行Select One Limit 1 Query操作

Returns:

T

doQueryOne

public T doQueryOne()

执行Select One Query操作

Returns:

T

doUpdate

public Boolean doUpdate()

执行Update操作

Returns:

true成功，false失败

doDelete

public Boolean doDelete()

执行Delete操作

Returns:

true成功，false失败

by

public T by(T t)

基于t进行操作

Parameters:

t -

Returns:

T

select

@SafeVarargs
public final T select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns)

SELECT 部分 SQL 设置

Parameters:

columns - 查询字段

select

public T select(java.util.function.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)

Parameters:

predicate - 过滤方式

Returns:

T

select

public T select(Class<T> entityClass,
                java.util.function.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)

Parameters:

predicate - 过滤方式

Returns:

T

allEq

public <V> T allEq(Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params)

map 所有非空属性等于 =

Parameters:

params - map 类型的参数, key 是字段名, value 是字段值

Returns:

T

allEq

public <V> T allEq(Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params,
                   boolean null2IsNull)

map 所有非空属性等于 =

Parameters:

params - map 类型的参数, key 是字段名, value 是字段值

null2IsNull - 是否参数为 null 自动执行 isNull 方法, false 则忽略这个字段\

Returns:

T

allEq

public <V> T allEq(java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter,
                   Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params)

字段过滤接口，传入多参数时允许对参数进行过滤

Parameters:

filter - 返回 true 来允许字段传入比对条件中

params - map 类型的参数, key 是字段名, value 是字段值

Returns:

T

allEq

public <V> T allEq(java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter,
                   Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params,
                   boolean null2IsNull)

字段过滤接口，传入多参数时允许对参数进行过滤

Parameters:

filter - 返回 true 来允许字段传入比对条件中

params - map 类型的参数, key 是字段名, value 是字段值

null2IsNull - 是否参数为 null 自动执行 isNull 方法, false 则忽略这个字段

Returns:

T

allEq

public <V> T allEq(boolean condition,
                   Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params,
                   boolean null2IsNull)

map 所有非空属性等于 =

Parameters:

condition - 执行条件

params - map 类型的参数, key 是字段名, value 是字段值

null2IsNull - 是否参数为 null 自动执行 isNull 方法, false 则忽略这个字段\

Returns:

T

allEq

public <V> T allEq(boolean condition,
                   java.util.function.BiPredicate<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> filter,
                   Map<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,V> params,
                   boolean null2IsNull)

字段过滤接口，传入多参数时允许对参数进行过滤

Parameters:

condition - 执行条件

filter - 返回 true 来允许字段传入比对条件中

params - map 类型的参数, key 是字段名, value 是字段值

null2IsNull - 是否参数为 null 自动执行 isNull 方法, false 则忽略这个字段

Returns:

T

eq

public T eq(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

等于 =

Parameters:

column - 字段

val - 值

Returns:

T

eq

public T eq(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

等于 =

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

ne

public T ne(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

不等于 <>

Parameters:

column - 字段

val - 值

Returns:

T

ne

public T ne(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

不等于 <>

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

gt

public T gt(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

大于 >

Parameters:

column - 字段

val - 值

Returns:

T

gt

public T gt(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

大于 >

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

ge

public T ge(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

大于等于 >=

Parameters:

column - 字段

val - 值

Returns:

children

ge

public T ge(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

大于等于 >=

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

lt

public T lt(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

小于 <

Parameters:

column - 字段

val - 值

Returns:

T

lt

public T lt(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

小于 <

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

le

public T le(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

小于等于 <=

Parameters:

column - 字段

val - 值

Returns:

T

le

public T le(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Object val)

小于等于 <=

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

between

public T between(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                 Object val1,
                 Object val2)

BETWEEN 值1 AND 值2

Parameters:

column - 字段

val1 - 值1

val2 - 值2

Returns:

T

between

public T between(boolean condition,
                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                 Object val1,
                 Object val2)

BETWEEN 值1 AND 值2

Parameters:

condition - 执行条件

column - 字段

val1 - 值1

val2 - 值2

Returns:

T

notBetween

public T notBetween(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                    Object val1,
                    Object val2)

NOT BETWEEN 值1 AND 值2

Parameters:

column - 字段

val1 - 值1

val2 - 值2

Returns:

T

notBetween

public T notBetween(boolean condition,
                    com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                    Object val1,
                    Object val2)

NOT BETWEEN 值1 AND 值2

Parameters:

condition - 执行条件

column - 字段

val1 - 值1

val2 - 值2

Returns:

T

like

public T like(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
              Object val)

LIKE '%值%'

Parameters:

column - 字段

val - 值

Returns:

T

like

public T like(boolean condition,
              com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
              Object val)

LIKE '%值%'

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

notLike

public T notLike(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                 Object val)

NOT LIKE '%值%'

Parameters:

column - 字段

val - 值

Returns:

T

notLike

public T notLike(boolean condition,
                 com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                 Object val)

NOT LIKE '%值%'

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

likeLeft

public T likeLeft(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                  Object val)

LIKE '%值'

Parameters:

column - 字段

val - 值

Returns:

T

likeLeft

public T likeLeft(boolean condition,
                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                  Object val)

LIKE '%值'

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

likeRight

public T likeRight(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                   Object val)

LIKE '值%'

Parameters:

column - 字段

val - 值

Returns:

T

likeRight

public T likeRight(boolean condition,
                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
                   Object val)

LIKE '值%'

Parameters:

condition - 执行条件

column - 字段

val - 值

Returns:

T

or

public T or()

拼接 OR

Returns:

T

or

public T or(boolean condition)

拼接 OR

Parameters:

condition - 执行条件

Returns:

T

or

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T or(java.util.function.Consumer<Children> consumer)

OR 嵌套

例: or(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

consumer - 消费函数

Returns:

T

or

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T or(boolean condition,
                                                                                                                                                                 java.util.function.Consumer<Children> consumer)

OR 嵌套

例: or(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

condition - 执行条件

consumer - 消费函数

Returns:

T

and

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T and(java.util.function.Consumer<Children> consumer)

AND 嵌套

例: and(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

consumer - 消费函数

Returns:

T

and

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T and(boolean condition,
                                                                                                                                                                  java.util.function.Consumer<Children> consumer)

AND 嵌套

例: and(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

condition - 执行条件

consumer - 消费函数

Returns:

T

nested

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T nested(java.util.function.Consumer<Children> consumer)

正常嵌套 不带 AND 或者 OR

例: nested(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

consumer - 消费函数

Returns:

T

nested

public <Children extends com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>> T nested(boolean condition,
                                                                                                                                                                     java.util.function.Consumer<Children> consumer)

正常嵌套 不带 AND 或者 OR

例: nested(i -> i.eq("name", "李白").ne("status", "活着"))

Parameters:

condition - 执行条件

consumer - 消费函数

Returns:

T

set

public T set(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
             Object val)

设置 更新 SQL 的 SET 片段

Parameters:

column - 字段

val - 值

Returns:

T

set

public T set(boolean condition,
             com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
             Object val)

设置 更新 SQL 的 SET 片段

Parameters:

condition - 是否加入 set

column - 字段

val - 值

Returns:

T

isNull

public T isNull(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column)

字段 IS NULL

例: isNull("name")

Parameters:

column - 字段

Returns:

T

isNull

public T isNull(boolean condition,
                com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column)

字段 IS NULL

例: isNull("name")

Parameters:

condition - 执行条件

column - 字段

Returns:

T

isNotNull

public T isNotNull(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column)

字段 IS NOT NULL

例: isNotNull("name")

Parameters:

column - 字段

Returns:

T

isNotNull

public T isNotNull(boolean condition,
                   com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column)

字段 IS NOT NULL

例: isNotNull("name")

Parameters:

condition - 执行条件

column - 字段

Returns:

T

in

public T in(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Collection<?> coll)

字段 IN (value.get(0), value.get(1), ...)

例: in("id", Arrays.asList(1, 2, 3, 4, 5))

如果集合为 empty 则不会进行 sql 拼接

Parameters:

column - 字段

coll - 数据集合

Returns:

T

in

public T in(boolean condition,
            com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> column,
            Collection<?> coll)

字段 IN (value.get(0), value.get(1), ...)

例: in("id", Arrays.asList(1, 2, 3, 4, 5))

如果集合为 empty 则不会进行 sql 拼接