A class that implements a connection to a PostgreSQL database. More...

#include <Connection.h>

Inheritance diagram for te::pgis::Connection:

Public Member Functions
void	execute (const std::string &command)
	It executes the given SQL command and throws away the result. More...

PGconn *	getConn () const
	It gets the underlying PGconn object. More...

ConnectionPool *	getPool () const
	It gets the associated connection pool. More...

PGresult *	query (const std::string &query)
	It queries the database. More...

	~Connection ()
	Destructor. More...

Public Attributes
int	m_id
	The connection Id. More...

bool	m_inuse
	Tells if the connection is in use or not. More...

boost::posix_time::ptime	m_lastuse
	It marks the last time this connection was used. More...

PGconn *	m_pgconn
	The PostgreSQL real connection handle. More...

ConnectionPool *	m_pool
	The connection pool associated to the connection. More...

Private Member Functions
	Connection (ConnectionPool *pool, const std::string &conninfo, const std::string &cencoding, bool inuse=false)
	Constructor. More...

Friends
class	ConnectionPool

Detailed Description

A class that implements a connection to a PostgreSQL database.

This class models a physical connection to a PostgreSQL data source. It is designed to work with the connection pool.

See also: ConnectionPool

Definition at line 68 of file postgis/Connection.h.

Constructor & Destructor Documentation

te::pgis::Connection::~Connection ( )

Destructor.

Definition at line 90 of file postgis/Connection.cpp.

References m_pgconn.

te::pgis::Connection::Connection	(	ConnectionPool *	pool,
		const std::string &	conninfo,
		const std::string &	cencoding,
		bool	inuse = `false`
	)

private

Constructor.

Parameters

pool	The associated connection pool.
conninfo	A coonection string as undertood by libpq.
cecoding	The character encoding used by application.
inuse	A marker that tells if the connection is in use or not.

Definition at line 96 of file postgis/Connection.cpp.

References m_id, m_pgconn, PostGISNoticeProcessor(), and TE_TR.

Member Function Documentation

void te::pgis::Connection::execute ( const std::string & command )

It executes the given SQL command and throws away the result.

Parameters

command Any SQL command.

Exceptions

Exception It throws an exception if the query execution fails.

Definition at line 61 of file postgis/Connection.cpp.

References m_pgconn, and TE_TR.

Referenced by te::pgis::Transactor::execute(), and te::pgis::ConnectedDataSet::~ConnectedDataSet().

PGconn* te::pgis::Connection::getConn ( ) const

inline

It gets the underlying PGconn object.

Returns: The underlying PGconn object.

Definition at line 97 of file postgis/Connection.h.

Referenced by te::pgis::PreparedQuery::prepare().

ConnectionPool* te::pgis::Connection::getPool ( ) const

inline

It gets the associated connection pool.

Returns: The associated connection pool.

Definition at line 107 of file postgis/Connection.h.

PGresult * te::pgis::Connection::query ( const std::string & query )

It queries the database.

Parameters

query A SQL Select command.

Returns: A resultset. The caller of this method will take its ownership.

Exceptions

Exception It throws an exception if the query execution fails.

Definition at line 44 of file postgis/Connection.cpp.

References m_pgconn, and TE_TR.

Referenced by te::pgis::Transactor::query().

Friends And Related Function Documentation

friend class ConnectionPool

friend

Definition at line 135 of file postgis/Connection.h.

Member Data Documentation

int te::pgis::Connection::m_id

The connection Id.

Definition at line 129 of file postgis/Connection.h.

Referenced by Connection(), te::pgis::ConnectionPool::getConnection(), te::pgis::DataSource::getTransactor(), te::pgis::ConnectionPool::initialize(), and te::pgis::ConnectionPool::release().

bool te::pgis::Connection::m_inuse

Tells if the connection is in use or not.

Definition at line 132 of file postgis/Connection.h.

Referenced by te::pgis::ConnectionPool::getConnection().

boost::posix_time::ptime te::pgis::Connection::m_lastuse

It marks the last time this connection was used.

Definition at line 133 of file postgis/Connection.h.

Referenced by te::pgis::ConnectionPool::release().

PGconn* te::pgis::Connection::m_pgconn

The PostgreSQL real connection handle.

Definition at line 131 of file postgis/Connection.h.

Referenced by Connection(), execute(), query(), and ~Connection().

ConnectionPool* te::pgis::Connection::m_pool

The connection pool associated to the connection.

Definition at line 130 of file postgis/Connection.h.

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

Public Member Functions

Public Attributes

Private Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation