com.baomidou.mybatisplus.core.conditions.interfaces

接口 Func<This,R>

所有超级接口:

java.io.Serializable

所有已知实现类:

AbstractLambdaWrapper, AbstractWrapper, LambdaQueryWrapper, LambdaUpdateWrapper, QueryWrapper, UpdateWrapper

public interface Func<This,R>
extends java.io.Serializable

查询条件封装 比较值

从以下版本开始:

2017-05-26

作者:

hubin miemie HCL

方法概要

限定符和类型	方法和说明
This	groupBy(boolean condition, R... columns) 分组：GROUP BY 字段, ...
default This	groupBy(R... columns) ignore
This	having(boolean condition, java.lang.String sqlHaving, java.lang.Object... params) HAVING ( sql语句 ) 例1: having("sum(age) > 10") 例2: having("sum(age) > {0}", 10)
default This	having(java.lang.String sqlHaving, java.lang.Object... params) ignore
This	in(boolean condition, R column, java.util.Collection<?> value) 字段 IN (value.get(0), value.get(1), ...)
default This	in(boolean condition, R column, java.lang.Object... values) 字段 IN (v0, v1, ...)
default This	in(R column, java.util.Collection<?> value) ignore
default This	in(R column, java.lang.Object... values) ignore
This	inSql(boolean condition, R column, java.lang.String inValue) 字段 IN ( sql语句 ) !!
default This	inSql(R column, java.lang.String inValue) ignore
This	isNotNull(boolean condition, R column) 字段 IS NOT NULL 例: isNotNull("name")
default This	isNotNull(R column) ignore
This	isNull(boolean condition, R column) 字段 IS NULL 例: isNull("name")
default This	isNull(R column) ignore
This	notIn(boolean condition, R column, java.util.Collection<?> value) 字段 NOT IN (value.get(0), value.get(1), ...)
default This	notIn(boolean condition, R column, java.lang.Object... values) 字段 NOT IN (v0, v1, ...)
default This	notIn(R column, java.util.Collection<?> values) ignore
default This	notIn(R column, java.lang.Object... value) ignore
This	notInSql(boolean condition, R column, java.lang.String inValue) 字段 NOT IN ( sql语句 ) !!
default This	notInSql(R column, java.lang.String inValue) ignore
This	orderBy(boolean condition, boolean isAsc, R... columns) 排序：ORDER BY 字段, ...
default This	orderByAsc(boolean condition, R... columns) 排序：ORDER BY 字段, ...
default This	orderByAsc(R... columns) ignore
default This	orderByDesc(boolean condition, R... columns) 排序：ORDER BY 字段, ...
default This	orderByDesc(R... columns) ignore

方法详细资料

isNull

default This isNull(R column)

ignore

isNull

This isNull(boolean condition,
            R column)

字段 IS NULL 例: isNull("name")

参数:

condition - 执行条件

column - 字段

isNotNull

default This isNotNull(R column)

ignore

isNotNull

This isNotNull(boolean condition,
               R column)

字段 IS NOT NULL 例: isNotNull("name")

参数:

condition - 执行条件

column - 字段

in

default This in(R column,
                java.util.Collection<?> value)

ignore

in

This in(boolean condition,
        R column,
        java.util.Collection<?> value)

字段 IN (value.get(0), value.get(1), ...) 例: in("id", Arrays.asList(1,2,3,4,5))

参数:

condition - 执行条件

column - 字段

value - 数据集合

in

default This in(R column,
                java.lang.Object... values)

ignore

in

default This in(boolean condition,
                R column,
                java.lang.Object... values)

字段 IN (v0, v1, ...) 例: in("id", 1, 2, 3, 4, 5)

参数:

condition - 执行条件

column - 字段

values - 数据数组

notIn

default This notIn(R column,
                   java.util.Collection<?> values)

ignore

notIn

This notIn(boolean condition,
           R column,
           java.util.Collection<?> value)

字段 NOT IN (value.get(0), value.get(1), ...) 例: notIn("id", Arrays.asList(1,2,3,4,5))

参数:

condition - 执行条件

column - 字段

value - 数据集合

notIn

default This notIn(R column,
                   java.lang.Object... value)

ignore

notIn

default This notIn(boolean condition,
                   R column,
                   java.lang.Object... values)

字段 NOT IN (v0, v1, ...) 例: notIn("id", 1, 2, 3, 4, 5)

参数:

condition - 执行条件

column - 字段

values - 数据数组

inSql

default This inSql(R column,
                   java.lang.String inValue)

ignore

inSql

This inSql(boolean condition,
           R column,
           java.lang.String inValue)

字段 IN ( sql语句 ) !! sql 注入方式的 in 方法 !! 例1: inSql("id", "1,2,3,4,5,6") 例2: inSql("id", "select id from table where id < 3")

参数:

condition - 执行条件

column - 字段

inValue - sql语句

notInSql

default This notInSql(R column,
                      java.lang.String inValue)

ignore

notInSql

This notInSql(boolean condition,
              R column,
              java.lang.String inValue)

字段 NOT IN ( sql语句 ) !! sql 注入方式的 not in 方法 !! 例1: notInSql("id", "1,2,3,4,5,6") 例2: notInSql("id", "select id from table where id < 3")

参数:

condition - 执行条件

column - 字段

inValue - sql语句 ---> 1,2,3,4,5,6 或者 select id from table where id < 3

groupBy

default This groupBy(R... columns)

ignore

groupBy

This groupBy(boolean condition,
             R... columns)

分组：GROUP BY 字段, ... 例: groupBy("id", "name")

参数:

condition - 执行条件

columns - 字段数组

orderByAsc

default This orderByAsc(R... columns)

ignore

orderByAsc

default This orderByAsc(boolean condition,
                        R... columns)

排序：ORDER BY 字段, ... ASC 例: orderByAsc("id", "name")

参数:

condition - 执行条件

columns - 字段数组

orderByDesc

default This orderByDesc(R... columns)

ignore

orderByDesc

default This orderByDesc(boolean condition,
                         R... columns)

排序：ORDER BY 字段, ... DESC 例: orderByDesc("id", "name")

参数:

condition - 执行条件

columns - 字段数组

orderBy

This orderBy(boolean condition,
             boolean isAsc,
             R... columns)

排序：ORDER BY 字段, ... 例: orderBy(true, "id", "name")

参数:

condition - 执行条件

isAsc - 是否是 ASC 排序

columns - 字段数组

having

default This having(java.lang.String sqlHaving,
                    java.lang.Object... params)

ignore

having

This having(boolean condition,
            java.lang.String sqlHaving,
            java.lang.Object... params)

HAVING ( sql语句 ) 例1: having("sum(age) > 10") 例2: having("sum(age) > {0}", 10)

参数:

condition - 执行条件

sqlHaving - sql 语句

params - 参数数组