com.github.yulichang.wrapper.interfaces

接口 Chain<T>

所有已知实现类:

KtLambdaWrapper, MPJLambdaWrapper, MPJQueryWrapper

public interface Chain<T>

链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

从以下版本开始:

1.4.4

作者:

yulichang

方法概要

限定符和类型	方法和说明
default Long	count() 链式调用 等效于MP mapper的 selectCount() 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default T	first() 链式调用 查询列表第一个 匹配多个不会抛异常 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default <R> R	first(Class<R> resultType) 链式调用 查询列表第一个 匹配多个不会抛异常 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
Class<T>	getEntityClass()
default List<T>	list() 链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default <R> List<R>	list(Class<R> resultType) 链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default T	one() 链式调用 等效于 selectOne 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default <R> R	one(Class<R> resultType) 链式调用 等效于 selectJoinOne 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default <P extends com.baomidou.mybatisplus.core.metadata.IPage<T>> P	page(P page) 链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.
default <R,P extends com.baomidou.mybatisplus.core.metadata.IPage<R>> P	page(P page, Class<R> resultType) 链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.

方法详细资料

getEntityClass

Class<T> getEntityClass()

count

default Long count()

链式调用 等效于MP mapper的 selectCount()

构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

one

default T one()

链式调用 等效于 selectOne

构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

one

default <R> R one(Class<R> resultType)

链式调用 等效于 selectJoinOne

构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

first

default T first()

链式调用 查询列表第一个 匹配多个不会抛异常

构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

first

default <R> R first(Class<R> resultType)

链式调用 查询列表第一个 匹配多个不会抛异常

构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

list

default List<T> list()

链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

list

default <R> List<R> list(Class<R> resultType)

链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

page

default <P extends com.baomidou.mybatisplus.core.metadata.IPage<T>> P page(P page)

链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)

page

default <R,P extends com.baomidou.mybatisplus.core.metadata.IPage<R>> P page(P page,
                                                                             Class<R> resultType)

链式调用 构造方法必须传 class 或 entity 否则会报错 new MPJLambdaWrapper(User.class) new MPJQueryWrapper(User.class) JoinWrappers.\lambdaJoin(User.class) JoinWrappers.\queryJoin(User.class)