com.baomidou.mybatisplus.core.conditions.interfaces

接口 Func<Children,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<Children,R>
extends java.io.Serializable

查询条件封装

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
Children	groupBy(boolean condition, R... columns) 分组：GROUP BY 字段, ...
default Children	groupBy(R... columns) ignore
default Children	groupBy(R column) ignore
Children	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 Children	having(java.lang.String sqlHaving, java.lang.Object... params) ignore
Children	in(boolean condition, R column, java.util.Collection<?> coll) 字段 IN (value.get(0), value.get(1), ...)
default Children	in(boolean condition, R column, java.lang.Object... values) 字段 IN (v0, v1, ...)
default Children	in(R column, java.util.Collection<?> coll) ignore
default Children	in(R column, java.lang.Object... values) ignore
Children	inSql(boolean condition, R column, java.lang.String inValue) 字段 IN ( sql语句 ) !!
default Children	inSql(R column, java.lang.String inValue) ignore
Children	isNotNull(boolean condition, R column) 字段 IS NOT NULL 例: isNotNull("name")
default Children	isNotNull(R column) ignore
Children	isNull(boolean condition, R column) 字段 IS NULL 例: isNull("name")
default Children	isNull(R column) ignore
Children	notIn(boolean condition, R column, java.util.Collection<?> coll) 字段 NOT IN (value.get(0), value.get(1), ...)
default Children	notIn(boolean condition, R column, java.lang.Object... values) 字段 NOT IN (v0, v1, ...)
default Children	notIn(R column, java.util.Collection<?> coll) ignore
default Children	notIn(R column, java.lang.Object... value) ignore
Children	notInSql(boolean condition, R column, java.lang.String inValue) 字段 NOT IN ( sql语句 ) !!
default Children	notInSql(R column, java.lang.String inValue) ignore
Children	orderBy(boolean condition, boolean isAsc, R... columns) 排序：ORDER BY 字段, ...
default Children	orderByAsc(boolean condition, R... columns) 排序：ORDER BY 字段, ...
default Children	orderByAsc(R... columns) ignore
default Children	orderByAsc(R column) ignore
default Children	orderByDesc(boolean condition, R... columns) 排序：ORDER BY 字段, ...
default Children	orderByDesc(R... columns) ignore
default Children	orderByDesc(R column) ignore

方法详细资料

isNull

default Children isNull(R column)

ignore

isNull

Children isNull(boolean condition,
                R column)

字段 IS NULL

例: isNull("name")

参数:

condition - 执行条件

column - 字段

返回:

children

isNotNull

default Children isNotNull(R column)

ignore

isNotNull

Children isNotNull(boolean condition,
                   R column)

字段 IS NOT NULL

例: isNotNull("name")

参数:

condition - 执行条件

column - 字段

返回:

children

in

default Children in(R column,
                    java.util.Collection<?> coll)

ignore

in

Children in(boolean condition,
            R column,
            java.util.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

参数:

condition - 执行条件

column - 字段

coll - 数据集合

返回:

children

in

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

ignore

in

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

字段 IN (v0, v1, ...)

例: in("id", 1, 2, 3, 4, 5)

如果动态数组为 empty 则不会进行 sql 拼接