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CdbTransaction.cc

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// File and Version Information:
//      $Id: CdbTransaction.cc,v 1.3 2005/02/02 15:59:14 gapon Exp $

/// The implementation of the CdbTransaction.
/**
  * @see CdbTransaction
  */
#include "BaBar/BaBar.hh"

#include "CdbBase/CdbTransaction.hh"
#include "CdbBase/Cdb.hh"

#include "ErrLogger/ErrLog.hh"

#include <iostream>
using std::endl;

CdbTransaction::CdbTransaction( CdbTransaction::Mode theMode ) :
    CdbTransactionBase( )
{
    const char* fatalMsg = "CdbTransaction::CdbTransaction(1) -- FATAL ERROR IN THE CONSTRUCTOR.";

  // Find the top-level API object for the default "technology"
  // and "implementation"

    CdbPtr ptr = Cdb::instance( );
    if( ptr.isNull( ))
        ErrMsg(fatal) << fatalMsg << endl
                      << "    Failed to obtain the top-level API object for the default CDB 'technology'" << endl
                      << "    and its 'implementation'. The current application may not be properly configured." << endmsg;

  // Get an instance of the transaction manager. The operation will also start
  // the transaction in the desired mode if none is available yet.
  //
  // NOTE: We're assuming that the returned object's ownership is also being
  //       transferred.

    _myImplPtr = ptr->transaction( theMode );

    if( 0 == _myImplPtr )
        ErrMsg(fatal) << fatalMsg << endl
                      << "    The transaction management object obtained from the top-level API object is null." << endl
                      << "    The transaction may not have started in the specified mode: " << theMode << endmsg;
}

CdbTransaction:: CdbTransaction( const CdbPtr&        thePtr,
                                 CdbTransaction::Mode theMode ) :
    CdbTransactionBase( )
{
    const char* fatalMsg = "CdbTransaction::CdbTransaction(2) -- FATAL ERROR IN THE CONSTRUCTOR.";

  // Verify the top-level API object passed as the parameter.

    if( thePtr.isNull( ))
        ErrMsg(fatal) << fatalMsg << endl
                      << "    The null pointer passed where a valid top-level API object was expected." << endl
                      << "    It may be an indication of a problem in a logic of a caller's code.." << endmsg;

  // Get an instance of the transaction manager. The operation will also start
  // the transaction in the desired mode if none is available yet.
  //
  // NOTE: We're assuming that the returned object's ownership is also being
  //       transferred.

    _myImplPtr = thePtr->transaction( theMode );
    if( 0 == _myImplPtr )
        ErrMsg(fatal) << fatalMsg << endl
                      << "    The transaction management object obtained from the top-level API object is null." << endl
                      << "    The transaction may not have started in the specified mode: " << theMode << endmsg;
}

CdbTransaction:: CdbTransaction( const char*          theTechnologyName,
                                 const char*          theImplementationName,
                                 CdbTransaction::Mode theMode ) :
    CdbTransactionBase( )
{
    const char* fatalMsg = "CdbTransaction::CdbTransaction(2) -- FATAL ERROR IN THE CONSTRUCTOR.";

  // Find the top-level API object for the specified "technology"
  // and "implementation"

    CdbPtr ptr = Cdb::instance( theTechnologyName,
                                theImplementationName );
    if( ptr.isNull( ))
        ErrMsg(fatal) << fatalMsg << endl
                      << "    Failed to obtain the top-level API object for the specified CDB 'technology'" << endl
                      << "    and its 'implementation'. The current application may not be properly configured." << endl
                      << "        TECHNOLOGY    : \"" << theTechnologyName     << "\"" << endl
                      << "        IMPLEMENTATION: \"" << theImplementationName << "\"" << endmsg;

  // Get an instance of the transaction manager. The operation will also start
  // the transaction in the desired mode if none is available yet.
  //
  // NOTE: We're assuming that the returned object's ownership is also being
  //       transferred.

    _myImplPtr = ptr->transaction( theMode );
    if( 0 == _myImplPtr )
        ErrMsg(fatal) << fatalMsg << endl
                      << "    The transaction management object obtained from the top-level API object is null." << endl
                      << "    The transaction may not have started in the specified mode: " << theMode << endmsg;
}

CdbTransaction::~CdbTransaction( )
{
    delete _myImplPtr;
    _myImplPtr = 0;
}

void
CdbTransaction::commitAndHold( )
{
    _myImplPtr->commitAndHold( );
}

/////////////////
// End Of File //
/////////////////

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