RecordManager Class Reference

The class manages the table's data. More...

#include <record_manager.h>

Public Member Functions
	RecordManager (BufferManager *bfm, CatalogManager *clm, IndexManager *idm)
void	CreateTableFile (const std::string &table_name)
	Create a Table File object. More...
void	DropTableFile (const std::string &table_name)
	Drop a Table File object. More...
void	InsertRecord (std::string table_name, const MemoryTuple &tuple)
	向对应表中插入一条记录 More...
int	DeleteRecord (std::string table_name)
	删除对应表中所有记录（不删除表文件） More...
int	DeleteRecord (std::string table_path, std::vector< Where > where)
	删除对应表中所有目标属性值满足Where条件的记录 More...
std::vector< MemoryTuple >	SelectRecord (std::string table_name)
	返回整张表 More...
std::vector< MemoryTuple >	SelectRecord (const std::string &table_path, const std::vector< std::string > &target_attr)
std::vector< MemoryTuple >	SelectRecord (std::string table_path, std::vector< Where > where)
	返回包含所有目标属性满足Where条件的记录的表 More...
std::vector< MemoryTuple >	SelectRecord (std::string table_name, const std::vector< std::string > &target_attr, std::vector< Where > where)
void	CreateIndex (std::string table_name, const std::string &target_attr)
	Create a Index on an attribute that has already exists. More...

Detailed Description

The class manages the table's data.

Definition at line 63 of file record_manager.h.

Member Function Documentation

CreateIndex()

void RecordManager::CreateIndex	(	std::string	table_name,
		const std::string &	target_attr
	)

Create a Index on an attribute that has already exists.

Parameters

index_manager
table_name	表的名字
target_attr	目标属性

Exceptions

如果表不存在，抛出table_not_exist异常。如果属性不存在，抛出attribute_not_exist异常。

Definition at line 521 of file record_manager.cpp.

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CreateTableFile()

void RecordManager::CreateTableFile

(

const std::string &

table_name

)

Create a Table File object.

Parameters

table_name

表的名字

Definition at line 41 of file record_manager.cpp.

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DeleteRecord() [1/2]

int RecordManager::DeleteRecord

(

std::string

table_name

)

删除对应表中所有记录（不删除表文件）

Parameters

table_name

表的名字

Returns

int 删除的记录数

Definition at line 151 of file record_manager.cpp.

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DeleteRecord() [2/2]

int RecordManager::DeleteRecord	(	std::string	table_path,
		std::vector< Where >	where
	)

删除对应表中所有目标属性值满足Where条件的记录

Parameters

table_path	表的名字
target_attr	目标属性
where	where条件

Returns

int 删除的记录数

Definition at line 199 of file record_manager.cpp.

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DropTableFile()

void RecordManager::DropTableFile

(

const std::string &

table_name

)

Drop a Table File object.

Parameters

table_name

表的名字

Definition at line 50 of file record_manager.cpp.

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InsertRecord()

void RecordManager::InsertRecord	(	std::string	table_name,
		const MemoryTuple &	tuple
	)

向对应表中插入一条记录

Parameters

table_name	表的名字
tuple	元组

Definition at line 61 of file record_manager.cpp.

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SelectRecord() [1/2]

std::vector< MemoryTuple > RecordManager::SelectRecord

(

std::string

table_name

)

返回整张表

Parameters

table_name	表的名字
result_table_name	返回的表的名字

Returns

Table 返回表

Definition at line 276 of file record_manager.cpp.

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SelectRecord() [2/2]

std::vector< MemoryTuple > RecordManager::SelectRecord	(	std::string	table_path,
		std::vector< Where >	where
	)

返回包含所有目标属性满足Where条件的记录的表

Parameters

table_path	表的名字
target_attr	投影属性
where	where条件，内含属性
result_table_name	返回的表的名字

Returns

Table 返回表

Definition at line 348 of file record_manager.cpp.

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The documentation for this class was generated from the following files:

• src/include/record/record_manager.h
• src/record/record_manager.cpp