Datasource.h

/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
  Datasource.h

  Qore Programming Language
 
  Copyright (C) 2003 - 2014 David Nichols
 
  The Datasource class provides the low-level interface to Qore DBI drivers.
  
  Permission is hereby granted, free of charge, to any person obtaining a
  copy of this software and associated documentation files (the "Software"),
  to deal in the Software without restriction, including without limitation
  the rights to use, copy, modify, merge, publish, distribute, sublicense,
  and/or sell copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.

  Note that the Qore library is released under a choice of three open-source
  licenses: MIT (as above), LGPL 2+, or GPL 2+; see README-LICENSE for more
  information.
*/

#ifndef _QORE_DATASOURCE_H

#define _QORE_DATASOURCE_H

#include <qore/QoreThreadLock.h>
#include <qore/QoreQueue.h>

#include <string>

class DBIDriver;


class Datasource {
   friend class QoreSQLStatement;

private:
   struct qore_ds_private *priv; // private implementation

   DLLLOCAL Datasource& operator=(const Datasource&);

   DLLLOCAL AbstractQoreNode* exec_internal(bool doBind, const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);
      
protected:
   DLLEXPORT void freeConnectionValues();
      
   DLLEXPORT void setConnectionValues();

   DLLEXPORT void setTransactionStatus(bool);

   DLLEXPORT void setPendingConnectionValues(const Datasource* other);

   DLLEXPORT int beginImplicitTransaction(ExceptionSink* xsink);

public:

   DLLEXPORT Datasource(DBIDriver* driver);

   DLLEXPORT Datasource(const Datasource& old);

   DLLEXPORT virtual ~Datasource();


   DLLEXPORT bool getAutoCommit() const;


   DLLEXPORT const char* getUsername() const;


   DLLEXPORT const char* getPassword() const;


   DLLEXPORT const char* getDBName() const;


   DLLEXPORT const char* getDBEncoding() const;


   DLLEXPORT const char* getOSEncoding() const;


   DLLEXPORT const char* getHostName() const;


   DLLEXPORT int getPort() const;


   DLLEXPORT const std::string& getUsernameStr() const;


   DLLEXPORT const std::string& getPasswordStr() const;


   DLLEXPORT const std::string& getDBNameStr() const;


   DLLEXPORT const std::string& getDBEncodingStr() const;


   DLLEXPORT const std::string& getHostNameStr() const;

   DLLEXPORT void* getPrivateData() const;

   template <typename T>
   DLLLOCAL T* getPrivateData() const {
      return reinterpret_cast<T*>(getPrivateData());
   }

   template <typename T>
   DLLLOCAL T& getPrivateDataRef() const {
      return *getPrivateData<T>();
   }


   DLLEXPORT void setPrivateData(void* data);


   DLLEXPORT void setDBEncoding(const char* name);

   DLLEXPORT const QoreEncoding* getQoreEncoding() const;


   DLLEXPORT void setQoreEncoding(const QoreEncoding* enc);


   DLLEXPORT void setQoreEncoding(const char* name);


   DLLEXPORT void setPendingUsername(const char* u);


   DLLEXPORT void setPendingPassword(const char* p);


   DLLEXPORT void setPendingDBName(const char* d);


   DLLEXPORT void setPendingDBEncoding(const char* c);


   DLLEXPORT void setPendingHostName(const char* h);


   DLLEXPORT void setPendingPort(int port);

   DLLEXPORT void setAutoCommit(bool ac);


   DLLEXPORT int open(ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* select(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* selectRows(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);


   DLLEXPORT QoreHashNode* selectRow(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* exec(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* execRaw(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* execRaw(const QoreString* query_str, ExceptionSink* xsink);


   DLLEXPORT QoreHashNode* describe(const QoreString* query_str, const QoreListNode* args, ExceptionSink* xsink);   


   DLLEXPORT int commit(ExceptionSink* xsink);


   DLLEXPORT int rollback(ExceptionSink* xsink);

   DLLEXPORT int close();

   DLLEXPORT void reset(ExceptionSink* xsink);


   DLLEXPORT QoreListNode* getCapabilityList() const;


   DLLEXPORT int getCapabilities() const;


   DLLEXPORT QoreStringNode* getPendingUsername() const;


   DLLEXPORT QoreStringNode* getPendingPassword() const;


   DLLEXPORT QoreStringNode* getPendingDBName() const;


   DLLEXPORT QoreStringNode* getPendingDBEncoding() const;


   DLLEXPORT QoreStringNode* getPendingHostName() const;


   DLLEXPORT int getPendingPort() const;

   DLLEXPORT int beginTransaction(ExceptionSink* xsink);


   DLLEXPORT bool isInTransaction() const;


   DLLEXPORT bool activeTransaction() const;


   DLLEXPORT bool isOpen() const;


   DLLEXPORT Datasource* copy() const;

   DLLEXPORT const char* getDriverName() const;


   DLLEXPORT AbstractQoreNode* getServerVersion(ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* getClientVersion(ExceptionSink* xsink) const;


   DLLEXPORT const DBIDriver* getDriver() const;


   DLLEXPORT void connectionAborted();


   DLLEXPORT bool wasConnectionAborted() const;   


   DLLEXPORT int autoCommit(ExceptionSink* xsink);


   DLLEXPORT QoreHashNode* getOptionHash() const;


   DLLEXPORT QoreHashNode* getCurrentOptionHash() const;


   DLLEXPORT int setOption(const char* opt, const AbstractQoreNode* val, ExceptionSink* xsink);


   DLLEXPORT AbstractQoreNode* getOption(const char* opt, ExceptionSink* xsink);


   DLLEXPORT const QoreHashNode* getConnectOptions() const;


   DLLEXPORT QoreHashNode* getConfigHash() const;


   DLLEXPORT QoreStringNode* getConfigString() const;


   DLLEXPORT void setEventQueue(Queue* q, AbstractQoreNode* arg, ExceptionSink* xsink);


   DLLEXPORT QoreHashNode* getEventQueueHash(Queue*& q, int event_code) const;
};

#endif // _QORE_DATASOURCE_H