LambdaTreeWrapper (common-dbs 2.1.10 API)

java.lang.Object
- com.baomidou.mybatisplus.core.conditions.Wrapper<T>
- - com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,Children>
  - - com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper<T,LambdaTreeWrapper<T>>
    - - top.jpower.jpower.module.mp.support.LambdaTreeWrapper<T>

所有已实现的接口:

com.baomidou.mybatisplus.core.conditions.interfaces.Compare<LambdaTreeWrapper<T>,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>, com.baomidou.mybatisplus.core.conditions.interfaces.Func<LambdaTreeWrapper<T>,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>, com.baomidou.mybatisplus.core.conditions.interfaces.Join<LambdaTreeWrapper<T>>, com.baomidou.mybatisplus.core.conditions.interfaces.Nested<LambdaTreeWrapper<T>,LambdaTreeWrapper<T>>, com.baomidou.mybatisplus.core.conditions.ISqlSegment, com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>, Serializable
```
public class LambdaTreeWrapper<T>
extends com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper<T,LambdaTreeWrapper<T>>
implements com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>
```
Lambda 语法使用 Wrapper

作者:

mr.gmac

另请参阅:

序列化表格

嵌套类概要
- 从类继承的嵌套类/接口 com.baomidou.mybatisplus.core.conditions.AbstractWrapper
  com.baomidou.mybatisplus.core.conditions.AbstractWrapper.DoSomething

字段概要
- 从类继承的字段 com.baomidou.mybatisplus.core.conditions.AbstractWrapper
  expression, lastSql, paramAlias, paramNameSeq, paramNameValuePairs, sqlComment, sqlFirst, typedThis

构造器概要

构造器
构造器和说明
`LambdaTreeWrapper(Class<T> entityClass, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> id, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> parentId)`
`LambdaTreeWrapper(T entity, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> id, com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> parentId)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`void`	`clear()`
`String`	`getSqlSelect()`
`protected LambdaTreeWrapper<T>`	`instance()` 用于生成嵌套 sql 故 sqlSelect 不向下传递
`LambdaTreeWrapper<T>`	`lazy(Object parentIdValue)`
`LambdaTreeWrapper<T>`	`select(boolean condition, List<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>> columns)` 指定查询字段
`LambdaTreeWrapper<T>`	`select(Class<T> entityClass, Predicate<com.baomidou.mybatisplus.core.metadata.TableFieldInfo> predicate)` 过滤查询的字段信息(主键除外!)
`LambdaTreeWrapper<T>`	`select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns)` SELECT 部分 SQL 设置
`TreeWrapper<T>`	`unLambda()` 返回一个不是 lambda 函数写法的 wrapper

从类继承的方法 com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper
columnsToString, columnsToString, columnsToString, columnToString, columnToString, getColumnCache, groupBy, groupBy, groupBy, orderBy, orderByAsc, orderByAsc, orderByDesc, orderByDesc

从类继承的方法 com.baomidou.mybatisplus.core.conditions.AbstractWrapper
addCondition, addNestedCondition, allEq, allEq, and, and, appendSqlSegments, apply, between, clone, columnsToString, columnToSqlSegment, comment, doGroupBy, doOrderBy, eq, exists, first, formatParam, formatSqlMaybeWithParam, func, ge, geSql, getEntity, getEntityClass, getExpression, getParamAlias, getParamNameValuePairs, getSqlComment, getSqlFirst, getSqlSegment, groupBy, groupBy, gt, gtSql, having, in, in, inExpression, inExpression, initNeed, inSql, isNotNull, isNull, isUseAnnotationOrderBy, last, le, leSql, like, likeLeft, likeRight, likeValue, lt, ltSql, maybeDo, ne, nested, not, not, notBetween, notExists, notIn, notIn, notInSql, notLike, notLikeLeft, notLikeRight, or, or, orderBy, orderBy, orderBy, setEntity, setEntityClass, setParamAlias

从类继承的方法 com.baomidou.mybatisplus.core.conditions.Wrapper
getCustomSqlSegment, getSqlSet, getTargetSql, isEmptyOfEntity, isEmptyOfNormal, isEmptyOfWhere, isNonEmptyOfEntity, isNonEmptyOfNormal, isNonEmptyOfWhere, nonEmptyOfEntity, nonEmptyOfNormal, nonEmptyOfWhere

从类继承的方法 java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.query.Query
select, select, select

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Compare
allEq, allEq, allEq, allEq, between, eq, ge, gt, le, like, likeLeft, likeRight, lt, ne, notBetween, notLike, notLikeLeft, notLikeRight

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Nested
and, nested, not, or

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Join
apply, comment, exists, first, last, notExists, or

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Func
func, geSql, groupBy, groupBy, gtSql, having, in, in, inSql, isNotNull, isNull, leSql, ltSql, notIn, notIn, notInSql, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByAsc, orderByDesc, orderByDesc, orderByDesc, orderByDesc, orderByDesc

- 构造器详细资料
  - LambdaTreeWrapper
```
public LambdaTreeWrapper(T entity,
                         com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> id,
                         com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> parentId)
```
  - LambdaTreeWrapper
```
public LambdaTreeWrapper(Class<T> entityClass,
                         com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> id,
                         com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?> parentId)
```
- 方法详细资料
  - select
```
public LambdaTreeWrapper<T> select(boolean condition,
                                   List<com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>> columns)
```
    指定查询字段
    
    指定者:
    
    select 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>
    
    参数:
    
    condition - 执行条件
    
    columns - 字段列表
    
    返回:
    
    children
  - select
```
@SafeVarargs
public final LambdaTreeWrapper<T> select(com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>... columns)
```
    SELECT 部分 SQL 设置
    
    指定者:
    
    select 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>
    
    参数:
    
    columns - 查询字段
  - select
```
public LambdaTreeWrapper<T> select(Class<T> entityClass,
                                   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)
    
    指定者:
    
    select 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>
    
    参数:
    
    predicate - 过滤方式
    
    返回:
    
    this
  - lazy
```
public LambdaTreeWrapper<T> lazy(Object parentIdValue)
```
  - getSqlSelect
```
public String getSqlSelect()
```
    指定者:
    
    getSqlSelect 在接口中 com.baomidou.mybatisplus.core.conditions.query.Query<LambdaTreeWrapper<T>,T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>>
    
    覆盖:
    
    getSqlSelect 在类中 com.baomidou.mybatisplus.core.conditions.Wrapper<T>
  - instance
```
protected LambdaTreeWrapper<T> instance()
```
    用于生成嵌套 sql
    故 sqlSelect 不向下传递
    
    指定者:
    
    instance 在类中 com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,LambdaTreeWrapper<T>>
  - unLambda
```
public TreeWrapper<T> unLambda()
```
    返回一个不是 lambda 函数写法的 wrapper
  - clear
```
public void clear()
```
    覆盖:
    
    clear 在类中 com.baomidou.mybatisplus.core.conditions.AbstractWrapper<T,com.baomidou.mybatisplus.core.toolkit.support.SFunction<T,?>,LambdaTreeWrapper<T>>

类 LambdaTreeWrapper<T>

嵌套类概要

从类继承的嵌套类/接口 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

字段概要

从类继承的字段 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

构造器概要

方法概要

从类继承的方法 com.baomidou.mybatisplus.core.conditions.AbstractLambdaWrapper

从类继承的方法 com.baomidou.mybatisplus.core.conditions.AbstractWrapper

从类继承的方法 com.baomidou.mybatisplus.core.conditions.Wrapper

从类继承的方法 java.lang.Object

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.query.Query

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Compare

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Nested

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Join

从接口继承的方法 com.baomidou.mybatisplus.core.conditions.interfaces.Func

构造器详细资料

LambdaTreeWrapper

LambdaTreeWrapper

方法详细资料

select

select

select

lazy

getSqlSelect

instance

unLambda

clear