top.xiajibagao.mybatis.plus.join.wrapper.column

类 CaseColumn<T extends ColumnQuery<?,?,?,?>>

java.lang.Object

top.xiajibagao.mybatis.plus.join.wrapper.column.CaseColumn<T>

所有已实现的接口:

com.baomidou.mybatisplus.core.conditions.ISqlSegment, Serializable, ColumnSegment

public class CaseColumn<T extends ColumnQuery<?,?,?,?>>
extends Object
implements ColumnSegment

case..when语句

作者:

huangchengxing

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
CaseColumn()

方法概要

限定符和类型	方法和说明
CaseColumn<T>	el(com.baomidou.mybatisplus.core.conditions.ISqlSegment elseValue) 添加“else...”语句
CaseColumn<T>	el(Object elseValue) 添加“else...”语句
T	end() 完成构建，并将当前字段添加到所属条件构造器中
String	getColumn() 获取表字段
String	toString()
CaseColumn<T>	when(ColumnSegment conditionColumn, Condition condition, com.baomidou.mybatisplus.core.conditions.ISqlSegment conditionValue, com.baomidou.mybatisplus.core.conditions.ISqlSegment then) 添加一对“when...then...”语句
CaseColumn<T>	when(ColumnSegment conditionColumn, Condition condition, Object conditionValue, Object then) 添加一对“when...then...”语句
CaseColumn<T>	when(com.baomidou.mybatisplus.core.conditions.ISqlSegment when, com.baomidou.mybatisplus.core.conditions.ISqlSegment then) 添加一对“when...then...”语句
CaseColumn<T>	when(Object when, Object then) 添加一对“when...then...”语句

从类继承的方法 java.lang.Object

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

从接口继承的方法 top.xiajibagao.mybatis.plus.join.wrapper.interfaces.ColumnSegment

getAlisa, getColumnSql, getSqlSegment, setAlisa

构造器详细资料

CaseColumn

public CaseColumn()

方法详细资料

when

public CaseColumn<T> when(Object when,
                          Object then)

添加一对“when...then...”语句

参数:

when - when条件

then - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

when

public CaseColumn<T> when(com.baomidou.mybatisplus.core.conditions.ISqlSegment when,
                          com.baomidou.mybatisplus.core.conditions.ISqlSegment then)

添加一对“when...then...”语句

参数:

when - when条件

then - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

when

public CaseColumn<T> when(ColumnSegment conditionColumn,
                          Condition condition,
                          com.baomidou.mybatisplus.core.conditions.ISqlSegment conditionValue,
                          com.baomidou.mybatisplus.core.conditions.ISqlSegment then)

添加一对“when...then...”语句

参数:

conditionColumn - when条件字段

condition - when条件字段

conditionValue - when条件值字段

then - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

when

public CaseColumn<T> when(ColumnSegment conditionColumn,
                          Condition condition,
                          Object conditionValue,
                          Object then)

添加一对“when...then...”语句

参数:

conditionColumn - when条件字段

condition - when条件字段

conditionValue - when条件值字段

then - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

el

public CaseColumn<T> el(com.baomidou.mybatisplus.core.conditions.ISqlSegment elseValue)

添加“else...”语句

参数:

elseValue - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

el

public CaseColumn<T> el(Object elseValue)

添加“else...”语句

参数:

elseValue - then返回值

返回:

com.xiajibagao.top.mybatis.plus.concatSegment.wrapper.column.CaseColumn

end

public T end()

完成构建，并将当前字段添加到所属条件构造器中

返回:

T

getColumn

public String getColumn()

从接口复制的说明: ColumnSegment

获取表字段

指定者:

getColumn 在接口中 ColumnSegment

返回:

java.lang.String

toString

public String toString()

覆盖:

toString 在类中 Object