StringListPhysicalOperator类 参考

字符串列表物理算子 更多...

#include <string_list_physical_operator.h>

类 StringListPhysicalOperator 继承关系图:

Public 成员函数
template<typename InputIt >
void	append (InputIt begin, InputIt end)
void	append (std::initializer_list< std::string > init)
template<typename T >
void	append (const T &v)
PhysicalOperatorType	type () const override
RC	open (Trx *) override
RC	next () override
virtual RC	close () override
virtual Tuple *	current_tuple () override
Public 成员函数 继承自 PhysicalOperator
virtual std::string	name () const
virtual std::string	param () const
virtual PhysicalOperatorType	type () const =0
virtual RC	open (Trx *trx)=0
virtual RC	next ()=0
virtual RC	close ()=0
virtual Tuple *	current_tuple ()=0
void	add_child (std::unique_ptr< PhysicalOperator > oper)
std::vector< std::unique_ptr< PhysicalOperator > > &	children ()

Private 类型
using	StringList = std::vector< std::string >
using	StringListList = std::vector< StringList >

Private 属性
StringListList	strings_
StringListList::iterator	iterator_
bool	started_ = false
ValueListTuple	tuple_

额外继承的成员函数
Protected 属性 继承自 PhysicalOperator
std::vector< std::unique_ptr< PhysicalOperator > >	children_

详细描述

字符串列表物理算子

用于将字符串列表转换为物理算子,为了方便实现的接口，比如help命令

成员函数说明

close()

virtual RC StringListPhysicalOperator::close ( )

inlineoverridevirtual

实现了 PhysicalOperator.

current_tuple()

virtual Tuple * StringListPhysicalOperator::current_tuple ( )

inlineoverridevirtual

实现了 PhysicalOperator.

next()

RC StringListPhysicalOperator::next ( )

inlineoverridevirtual

实现了 PhysicalOperator.

open()

RC StringListPhysicalOperator::open ( Trx *  )

inlineoverridevirtual

实现了 PhysicalOperator.

type()

PhysicalOperatorType StringListPhysicalOperator::type ( ) const

inlineoverridevirtual

实现了 PhysicalOperator.

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该类的文档由以下文件生成:

• src/observer/sql/operator/string_list_physical_operator.h