JDATABASE::JDB Class Reference

Auxiliary class for connection to data base. More...

#include <JDB.hh>

Inheritance diagram for JDATABASE::JDB:

Static Public Member Functions
static JDB &	get ()
	Get connection to database. More...
static void	reset ()
	Reset connection to database. More...
static void	reset (const std::string &usr, const std::string &pwd)
	Reset connection to database. More...
static void	reset (const std::string &cookie)
	Reset connection to database. More...
static void	reset (const std::string &usr, const std::string &pwd, const std::string &cookie)
	Reset connection to database. More...

Private Member Functions
	JDB ()
	Default constructor. More...
	JDB (const JDB &)
JDB &	operator= (const JDB &)

Detailed Description

Auxiliary class for connection to data base.

Definition at line 72 of file JDB.hh.

Constructor & Destructor Documentation

JDATABASE::JDB::JDB ( )

inlineprivate

Default constructor.

Definition at line 185 of file JDB.hh.

    {}

JDATABASE::JDB::JDB ( const JDB &  )

private

Member Function Documentation

static JDB& JDATABASE::JDB::get ( )

inlinestatic

Get connection to database.

Returns

database connection

Definition at line 81 of file JDB.hh.

    {
      static JDB db;

      return db;
    }

static void JDATABASE::JDB::reset ( )

inlinestatic

Reset connection to database.

Definition at line 92 of file JDB.hh.

    {
      JDB& db = JDB::get();

      if (db.get() != NULL) {
        db->Close();
        static_cast<std::shared_ptr<Client>&>(db).reset();
      }
    }

static void JDATABASE::JDB::reset ( const std::string &  usr, const std::string &  pwd  )

inlinestatic

Reset connection to database.

Parameters

usr	user name
pwd	pass word

Definition at line 109 of file JDB.hh.

    {
      static_cast<std::shared_ptr<Client>&>(JDB::get()) = Client::Create(Server::Default, usr.c_str(), pwd.c_str());
    }

static void JDATABASE::JDB::reset ( const std::string &  cookie )

inlinestatic

Reset connection to database.

Parameters

cookie

persistent cookie

Definition at line 121 of file JDB.hh.

    {
      using namespace std;
      using namespace JPP;

      string buffer = cookie;
      
      if (getFileStatus(cookie.c_str())) {

        ifstream in(cookie.c_str());

        getline(in, buffer);

        in.close();
      }

      const string::size_type pos = buffer.find(PREFIX_COOKIE);

      if (pos != string::npos) {
        buffer.erase(0, pos);
      }

      static_cast<std::shared_ptr<Client>&>(JDB::get()) = Client::Create(Server::Default, buffer.c_str());
    }

static void JDATABASE::JDB::reset ( const std::string &  usr, const std::string &  pwd, const std::string &  cookie  )

inlinestatic

Reset connection to database.

An attempt to make a connection to the database is made in the following order, using:

1. user name and password, if neither empty;
2. given cookie, if not empty;
3. private cookie file (created with JCookie.sh);
4. public cookie (defined by environment variable DBCOOKIE);

Parameters

usr	user name
pwd	password
cookie	persistent cookie

Definition at line 161 of file JDB.hh.

    {
      using namespace std;
      using namespace JPP;

      if      (usr != "" && pwd != "")
        JDB::reset(usr, pwd);
      else if (cookie != "")
        JDB::reset(cookie);
      else if (getFileStatus(getPrivateCookie()))
        JDB::reset(getPrivateCookie());
      else if (getPublicCookie()  != NULL)
        JDB::reset(getPublicCookie());
      else
        THROW(JDatabaseException, "Missing user name / password or cookie file.");
    }

JDB& JDATABASE::JDB::operator= ( const JDB &  )

private

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

• JDB.hh