ResultSet Class Reference

Result set. More...

#include <resultset.h>

Classes
class	ColumnValue
class	Row

Public Types
typedef std::vector< Row * >::iterator	RowIterator

Public Member Functions
	ResultSet (const std::string &json)
	Construct a result set from a JSON document returned from the Fledge storage service. More...
	~ResultSet ()
	Destructor for a result set.
unsigned int	rowCount () const
unsigned int	columnCount () const
const std::string &	columnName (unsigned int column) const
	Return the name of a specific column. More...
ColumnType	columnType (unsigned int column) const
	Return the type of a specific column. More...
ColumnType	columnType (const std::string &name) const
RowIterator	firstRow ()
	Fetch an iterator for the rows in a result set. More...
RowIterator	nextRow (RowIterator it)
	Given an iterator over the rows in a result set move to the next row in the result set. More...
bool	isLastRow (RowIterator it) const
	Given an iterator over the rows in a result set return if there this is the last row in the result set. More...
bool	hasNextRow (RowIterator it) const
	Given an iterator over the rows in a result set return if there are any more rows in the result set. More...
unsigned int	findColumn (const std::string &name) const
	Find the named column in the result set and return the column index. More...
const Row *	operator[] (unsigned long rowNo)

Detailed Description

Result set.

Constructor & Destructor Documentation

ResultSet()

ResultSet::ResultSet

(

const std::string &

json

)

Construct a result set from a JSON document returned from the Fledge storage service.

Parameters

json	The JSON document to construct the result set from

Member Function Documentation

columnName()

const string & ResultSet::columnName

(

unsigned int

column

)

const

Return the name of a specific column.

Parameters

column

- the column number of the column to return. Columns are numbered from 0

Returns

string& The name of the column

Exceptions

ResultNoSuchColumnException

The specified column does not exist in the result set

columnType()

ColumnType ResultSet::columnType

(

unsigned int

column

)

const

Return the type of a specific column.

Parameters

column

- the column number of the column to return. Columns are numbered from 0

Returns

ColumnType The type of the specified column

Exceptions

ResultNoSuchColumnException

The specified column does not exist in the result set

findColumn()

unsigned int ResultSet::findColumn

(

const std::string &

name

)

const

Find the named column in the result set and return the column index.

Parameters

name	The name of the column to return

Returns

unsigned int The index of the named column

Exceptions

ResultNoSuchColumnException

The named column does not exist in the result set

firstRow()

ResultSet::RowIterator ResultSet::firstRow

(

)

Fetch an iterator for the rows in a result set.

The iterator is positioned at the first row in the result set.

hasNextRow()

bool ResultSet::hasNextRow

(

RowIterator

it

)

const

Given an iterator over the rows in a result set return if there are any more rows in the result set.

Parameters

it	Iterator returned by the firstRow() method

Returns

bool True if there are more rows in the result set

isLastRow()

bool ResultSet::isLastRow

(

RowIterator

it

)

const

Given an iterator over the rows in a result set return if there this is the last row in the result set.

Parameters

it	Iterator returned by the firstRow() method

Returns

bool True if there are no more rows in the result set

nextRow()

ResultSet::RowIterator ResultSet::nextRow

(

RowIterator

it

)

Given an iterator over the rows in a result set move to the next row in the result set.

Parameters

it	Iterator returned by the firstRow() method

Returns

RowIterator New value of the iterator

Exceptions

ResultNoMoreRowsException

There are no more rows in the result set

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

• C/common/include/resultset.h
• C/common/result_set.cpp