Question

class TsDatabasePool
{
private:
    TsDatabasePool(int numDBConn, std::string& DBName, std::string& DBType);
            static  TsDatabasePool* objInst_;             
public:
           ~TsDatabasePool();               
    QSqlDatabase* borrowFromPool();      
    void returnToPool(QSqlDatabase*);
static bool createInstance(std::string& DBName, std::string& DBType);
static TsDatabasePool* getInstance();

};

My destructor is not called implicitly. Object instance used objInst_ is allocated in private constructor. I dont want to call destructor or call delete objInst_ inside any existing function. Can anyone tell me what should i do

Answer 1

I believe what you are trying to do here is destroy a singleton object.
It can be done as follows in a Singlethreaded Enviornment:

void TsDatabasePool::Destroy()  
{   
    if (objInst_) 
    {        
        delete objInst_;       
        objInst_= 0x0;   
    } 
} 

Ideally, You can use something like shared_ptr to ensure that the object stays around until no-one needs it any more.