Database Class Reference

Connection information and pool. More...

#include <Database.h>

List of all members.

Public Types
typedef std::list < OPENDB * >	opendb_v
	The pool of open database connections.
Public Member Functions
	Database (const std::string &database)
	Construc a Database that uses the specified filename.
virtual	~Database ()
	Destructor.
bool	Connected ()
	try to establish connection with given host
OPENDB *	grabdb ()
	Request a database connection.
void	freedb (OPENDB *odb)
	Free the database connection.
std::string	safestr (const std::string &)
	Escape string - change all ' to ''.
std::string	xmlsafestr (const std::string &)
	Make string xml safe.
int64_t	a2bigint (const std::string &)
	Convert string to 64-bit integer.
uint64_t	a2ubigint (const std::string &)
	Convert string to unsigned 64-bit integer.
Classes
struct	OPENDB
	Connection pool struct. More...

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Detailed Description

Connection information and pool.

Definition at line 47 of file Database.h.

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Constructor & Destructor Documentation

Database::Database

(

const std::string &

database

)

Construc a Database that uses the specified filename.

virtual Database::~Database

(

)

[virtual]

Destructor.

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Member Function Documentation

OPENDB* Database::grabdb

(

)

Request a database connection.

The "grabdb" method is used by the Query class, so that each object instance of Query gets a unique database connection. I will reimplement your connection check logic in the Query class, as that's where the database connection is really used. It should be used something like this. { Query q(db); if (!q.Connected()) return false; q.execute("delete * from user"); // well maybe not }

When the Query object is deleted, then "freedb" is called - the database connection stays open in the m_opendbs vector. New Query objects can then reuse old connections.

void Database::freedb

(

OPENDB *

odb

)

Free the database connection.

std::string Database::safestr

(

const std::string &

)

Escape string - change all ' to ''.

std::string Database::xmlsafestr

(

const std::string &

)

Make string xml safe.

int64_t Database::a2bigint

(

const std::string &

)

Convert string to 64-bit integer.

uint64_t Database::a2ubigint

(

const std::string &

)

Convert string to unsigned 64-bit integer.

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