ColumnStore::DataRecordMetadata Class Reference

Stores metadata information of the data record. More...

#include <DataRecord.h>

Collaboration diagram for ColumnStore::DataRecordMetadata:

Public Member Functions
	DataRecordMetadata (std::vector< Column > columns)
std::vector< Column > &	getColumns ()
	Get the Columns object. More...
Column &	operator[] (int i)
	Access Column by index. More...
Column &	getColumn (std::string name)
	Get the Column object by name. More...
Column &	getColumn (int i)
	Get the Column object by index. More...
Column &	operator[] (std::string name)
	Access column object by index. More...
void	print (DataRecord &record)
	Pretty print a single data record. More...
void	print ()
	Print metadata. More...

Private Attributes
std::vector< Column >	columns
std::unordered_map< std::string, int >	columnMap
	Map from column name to column index. More...

Detailed Description

Stores metadata information of the data record.

Metadata information include names of columns, the types of the columns and also the column index of each column. Each DataGenerator source will provide this metadata. Actual values from individual data records can be extracted using this metadata

See also

DataRecord

DataGeneratorInterface

Constructor & Destructor Documentation

DataRecordMetadata()

ColumnStore::DataRecordMetadata::DataRecordMetadata ( std::vector< Column >  columns )

inline

Member Function Documentation

getColumn() [1/2]

Column& ColumnStore::DataRecordMetadata::getColumn ( int  i )

inline

Get the Column object by index.

Parameters

i

Returns

Column

getColumn() [2/2]

Column& ColumnStore::DataRecordMetadata::getColumn ( std::string  name )

inline

Get the Column object by name.

Parameters

name

Returns

Column

getColumns()

std::vector<Column>& ColumnStore::DataRecordMetadata::getColumns ( )

inline

Get the Columns object.

Returns

column list

operator[]() [1/2]

Column& ColumnStore::DataRecordMetadata::operator[] ( int  i )

inline

Access Column by index.

Parameters

i

index

Returns

Column

operator[]() [2/2]

Column& ColumnStore::DataRecordMetadata::operator[] ( std::string  name )

inline

Access column object by index.

Parameters

name

Returns

Column

print() [1/2]

void ColumnStore::DataRecordMetadata::print ( )

inline

Print metadata.

Prints column names and type

print() [2/2]

void ColumnStore::DataRecordMetadata::print ( DataRecord &  record )

inline

Pretty print a single data record.

Prints the column names and the record data in tabular form

Parameters

record

to be printed

Member Data Documentation

columnMap

std::unordered_map<std::string, int> ColumnStore::DataRecordMetadata::columnMap

private

Map from column name to column index.

columns

std::vector<Column> ColumnStore::DataRecordMetadata::columns

private

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

• src/interfaces/DataRecord.h