MyConnection Class Reference

#include <MyConnection.h>

Inheritance diagram for MyConnection:

Public Member Functions
MYSQL *	connHandle () const
bool	storeResult () const
void	setErrorStatus (SQL::Error _error, const wchar_t *_filename, int _line)
void	setErrorStatus (const ByteString &_message, const wchar_t *_filename, int _line)
	MyConnection (const wchar_t *_serverTitle)
virtual void	destroy ()
virtual	~MyConnection ()
virtual bool	__open (const char *_pszConnString, size_t _n)
virtual bool	__close ()
virtual bool	__execute (const char *pszSQL, size_t _n)
virtual bool	__startTrans ()
virtual bool	__commitTrans ()
virtual bool	__rollbackTrans ()
virtual bool	__createQueryInstance (SQL::Query **_ppQuery)
virtual bool	__getErrorMessage (char *_buffer, size_t *_size)
virtual bool	__getServerInfo (char *_buffer, size_t *_size)
Public Member Functions inherited from SQL::Connection
long	refCount () const
long	addRef ()
long	release ()
bool	open (const char *_connString, size_t _connlen)
bool	close ()
bool	execute (const char *_sql, size_t _sqllen)
bool	startTrans ()
bool	commitTrans ()
bool	rollbackTrans ()
bool	getErrorMessage (char *_pbuf, size_t *_pn)
bool	getServerInfo (char *_pbuf, size_t *_pn)
bool	createQueryInstance (Query **_queryHandleOut)
bool	destroyQueryInstance (Query *_queryHandle)
Error	errorCode () const
bool	canTransact () const
const wchar_t *	serverTitle () const
bool	inState (unsigned int uState) const
Public Member Functions inherited from Object
virtual String	toString () const
String	className () const
bool	isInstanceOf (const std::type_info &typeinfo) const
virtual const std::type_info &	typeInfo () const

Additional Inherited Members
Public Types inherited from SQL::Connection
enum	State { stClosed = 0x0001 , stOpenned = 0x0002 , stInTransaction = 0x0004 }
Static Public Member Functions inherited from SQL::Connection
static size_t	splitConnectionString (const char *_connString, size_t _strlen, ListedByteStringToByteStringMap &_map)
Public Attributes inherited from SQL::Connection
__PROTECTED	: void setErrorStatus(Error _errorCode
__PROTECTED const wchar_t *	_filename
__PROTECTED const wchar_t int	_line
Protected Member Functions inherited from SQL::Connection
	Connection (const wchar_t *_serverTitle)
virtual	~Connection ()
Protected Member Functions inherited from Object
virtual	~Object ()
	Object ()
Protected Attributes inherited from SQL::Connection
bool	__canTransact
const wchar_t *	__serverTitle
Error	__errorCode
const wchar_t *	__errorFileName
int	__errorLine
unsigned int	__states

Detailed Description

Definition at line 18 of file MyConnection.h.

Constructor & Destructor Documentation

MyConnection()

MyConnection::MyConnection

(

const wchar_t *

_serverTitle

)

~MyConnection()

MyConnection::~MyConnection ( )

virtual

Definition at line 51 of file MyConnection.cpp.

{
    if (__mysql) {
        __DCL_TRACE0_N(L"Warning!! The connection was not closed\n");
        close();
    }
}

Member Function Documentation

__close()

bool MyConnection::__close ( )

virtual

Implements SQL::Connection.

Definition at line 148 of file MyConnection.cpp.

{
    if (!__mysql) {
        __SET_ERROR(SQL::eNotConnected);
        return false;
    }
 
    mysql_close(__mysql);
    __mysql = NULL;
 
    return true;
}

__commitTrans()

bool MyConnection::__commitTrans ( )

virtual

Implements SQL::Connection.

Definition at line 220 of file MyConnection.cpp.

{
    if (mysql_commit(connHandle())) {
        __SET_ERROR_MSG(ByteString::format("(%u) %hs",
            mysql_errno(connHandle()),
            mysql_error(connHandle())));
    }
 
    return true;
}

__createQueryInstance()

bool MyConnection::__createQueryInstance ( SQL::Query ** _ppQuery )

virtual

Implements SQL::Connection.

Definition at line 242 of file MyConnection.cpp.

{
    __DCL_ASSERT(_ppQuery != NULL);
 
    MyQuery* pNewQuery = new MyQuery(this);
    if (!pNewQuery) {
        __SET_ERROR(SQL::eOutOfMemory);
        return false;
    }
    
    *_ppQuery = pNewQuery;
    return true;
}

__execute()

bool MyConnection::__execute ( const char * pszSQL, size_t _n )

virtual

Implements SQL::Connection.

Definition at line 192 of file MyConnection.cpp.

{
    if (mysql_real_query(connHandle(), _sql, (unsigned long) _n)) {
        __SET_ERROR_MSG(ByteString::format("(%u) %hs",
            mysql_errno(connHandle()),
            mysql_error(connHandle())));
    }
 
    switch (__GetStmtType(_sql)) {
    case StmtTransBegin:
        __SET_STATE(stInTransaction);
        break;
    case StmtTransEnd:
        __UNSET_STATE(stInTransaction);
        break;
    case StmtOther:
    default:
        ;
    }
 
    return true;
}

__getErrorMessage()

bool MyConnection::__getErrorMessage ( char * _buffer, size_t * _size )

virtual

Implements SQL::Connection.

Definition at line 256 of file MyConnection.cpp.

{
    if (__lastErrorMessage.length() < *_size)
        *_size = __lastErrorMessage.length();
 
    strncpy(_buffer, __lastErrorMessage.data(), *_size);
 
    return true;
}

__getServerInfo()

bool MyConnection::__getServerInfo ( char * _buffer, size_t * _size )

virtual

Implements SQL::Connection.

Definition at line 266 of file MyConnection.cpp.

{
    const char* psz = mysql_get_server_info(connHandle());
    if (!psz)
        return false;
 
    size_t nLength = strlen(psz);
 
    if (nLength < *_size)
        *_size = nLength;
 
    strncpy(_buffer, psz, *_size);
 
    return true;
}       

__open()

bool MyConnection::__open ( const char * _pszConnString, size_t _n )

virtual

Implements SQL::Connection.

Definition at line 82 of file MyConnection.cpp.

{
    if ((__mysql = mysql_init(NULL)) == NULL) {
        __SET_ERROR(SQL::eOutOfMemory);
        return false;
    }
 
    ListedByteStringToByteStringMap map;
    Connection::splitConnectionString(_pszConnString, _n, map);
 
    ByteString strAppName = map["APPLICATION"];
 
    if (!strAppName.isEmpty()) {
        mysql_options(connHandle(), MYSQL_READ_DEFAULT_GROUP, strAppName.data());
    }
 
    ByteString strUser = map["USER"];
    ByteString strPassword = map["PASSWORD"];
    ByteString strHost = map["SERVER"];
    ByteString strDb = map["DATABASE"];
    ByteString strPort = map["PORT"];
    ByteString strUnixSocket = map["UNIX_SOCKET"];
    __storeResult = map.find("STORE_RESULT") != map.end();
 
    unsigned int port = 0;
    if (!strPort.isEmpty()) {
        char* endptr;
        unsigned long n = strtoul(strPort.data(), &endptr, 10);
        if (n == ULONG_MAX) {
            __SET_ERROR_MSG("연결 문자열이 잘못되었습니다. PORT=" + strPort);
            return false;
        }
        port = (unsigned int) n;
    }
 
    if (mysql_real_connect(
            connHandle(),
            strHost.isEmpty()? NULL : strHost.data(),
            strUser.isEmpty()? NULL : strUser.data(),
            strPassword.isEmpty()? NULL : strPassword.data(),
            strDb.isEmpty() ? NULL : strDb.data(),
            port,
            strUnixSocket.isEmpty() ? NULL : strUnixSocket.data(),
            0
            ) == NULL) {
        __SET_ERROR(SQL::eServerError);
        return false;
    }
 
    if (mysql_set_character_set(connHandle(), "utf8")) {
        __SET_ERROR_MSG(ByteString::format("(%u) %hs",
            mysql_errno(connHandle()),
            mysql_error(connHandle())));
        return false;
    }
 
    if (mysql_autocommit(connHandle(), 0)) {
        __SET_ERROR_MSG(ByteString::format("(%u) %hs",
            mysql_errno(connHandle()),
            mysql_error(connHandle())));
        return false;
    }
 
    return true;
}

__rollbackTrans()

bool MyConnection::__rollbackTrans ( )

virtual

Implements SQL::Connection.

Definition at line 231 of file MyConnection.cpp.

{   
    if (mysql_rollback(connHandle())) {
        __SET_ERROR_MSG(ByteString::format("(%u) %hs",
            mysql_errno(connHandle()),
            mysql_error(connHandle())));
    }
 
    return true;
}

__startTrans()

bool MyConnection::__startTrans ( )

virtual

Implements SQL::Connection.

Definition at line 215 of file MyConnection.cpp.

{
    return __execute("START TRANSACTION", 17);
}

connHandle()

MYSQL * MyConnection::connHandle ( ) const

inline

Definition at line 50 of file MyConnection.h.

{
    return __mysql;
}

destroy()

void MyConnection::destroy ( )

virtual

파생클래스에서 new 연산자를 override했거나, 추가적인 행위가 필요하다면 이것도 override하라

Implements SQL::Connection.

Definition at line 59 of file MyConnection.cpp.

{
    delete this;
}

setErrorStatus() [1/2]

void MyConnection::setErrorStatus ( const ByteString & _message, const wchar_t * _filename, int _line )

inline

Definition at line 74 of file MyConnection.h.

{
    Connection::setErrorStatus(SQL::eServerError, _filename, _line);
    __lastErrorMessage = _message;
}

setErrorStatus() [2/2]

void MyConnection::setErrorStatus ( SQL::Error _error, const wchar_t * _filename, int _line )

inline

Definition at line 60 of file MyConnection.h.

{
    Connection::setErrorStatus(_error, _filename, _line);
 
    if (_error == SQL::eServerError)
        __lastErrorMessage = mysql_error(connHandle());
    else
        __lastErrorMessage.clear();
}

storeResult()

bool MyConnection::storeResult ( ) const

inline

Definition at line 55 of file MyConnection.h.

{
    return __storeResult;
}

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

• MyConnection.h
• MyConnection.cpp