#include <SQLite.hh>

Inheritance diagram for SQLite:

Collaboration diagram for SQLite:

Public Member Functions
	SQLite ()

virtual	~SQLite ()

virtual RelationalDBConnection &	connect (const std::string &database, const std::string &login="", const std::string &password="", bool readOnly=false)

virtual void	close (const RelationalDBConnection &connection)

Public Member Functions inherited from RelationalDB
virtual	~RelationalDB ()

Private Attributes
SQLiteConnection *	activeConnection_
	Only one simultaneous active connection per SQLite instance allowed currently.

Detailed Description

Implementation of RelationalDB interface for SQLite library.

Definition at line 45 of file SQLite.hh.

Constructor & Destructor Documentation

◆ SQLite()

SQLite::SQLite ( )

Constructor.

Definition at line 44 of file SQLite.cc.

44 : activeConnection_(NULL) {

45}

SQLite::activeConnection_

SQLiteConnection * activeConnection_

Only one simultaneous active connection per SQLite instance allowed currently.

Definition SQLite.hh:59

◆ ~SQLite()

SQLite::~SQLite ( )

virtual

Destructor.

Definition at line 50 of file SQLite.cc.

                {
    close(*activeConnection_);
}

References activeConnection_, and close().

Here is the call graph for this function:

Member Function Documentation

◆ close()

void SQLite::close ( const RelationalDBConnection & connection )

virtual

Closes a database connection.

Close should be idempotent, that is, it can be called arbitrary amount of times to a connection without an error.

Parameters

connection The database connection to close.

Exceptions

RelationalDBException Thrown if closing the connection failed.

Implements RelationalDB.

Definition at line 100 of file SQLite.cc.

                                           {
    if (activeConnection_ == NULL) {
        return;
    }
 
    delete activeConnection_;
    activeConnection_ = NULL;
}

References activeConnection_.

Referenced by connect(), DSDBManager::createNew(), HDB::HDBManager::createNew(), DSDBManager::~DSDBManager(), HDB::HDBManager::~HDBManager(), and ~SQLite().

◆ connect()

RelationalDBConnection & SQLite::connect	(	const std::string &	database,
		const std::string &	login = `""`,
		const std::string &	password = `""`,
		bool	readOnly = `false`
	)

virtual

Connects to a database.

Possible old connection is closed. SQLite implementation doesn't support multiple active connections currently. If database file is not found, creation of new database file with the given name is attempted.

Parameters

database	The filename of the SQLite database.
login	Login name to use for the database connection.
password	Password to use for the database connection.
readOnly	Should the database be opened in read-only mode only?

Returns: Connection "handle" which is used to query the DB, etc.

Exceptions

RelationalDBException Thrown if connection failed.

Implements RelationalDB.

Definition at line 69 of file SQLite.cc.

                                                                         {
    if (activeConnection_ != NULL) {
        close(*activeConnection_);
        activeConnection_ = NULL;
    }
 
    sqlite3* connection = NULL;
    int value = sqlite3_open(database.c_str(), &connection);
 
    if (value != SQLITE_OK) {
        string error = sqlite3_errmsg(connection);
        error += " - file:\"" + database +"\"";
        throw RelationalDBException(
            __FILE__, __LINE__, "SQLite::connect()", error);
    }
 
    activeConnection_ = new SQLiteConnection(connection);
    return *activeConnection_;
}