TDbiConnectionMaintainer.cxx File Reference

#include "TDbiCascader.hxx"
#include "TDbiConnectionMaintainer.hxx"
#include <TSK_DBI_Log.hxx>
#include <MsgFormat.h>

Include dependency graph for TDbiConnectionMaintainer.cxx:

Go to the source code of this file.

Functions
	ClassImp (TDbiConnectionMaintainer) TDbiConnectionMaintainer

---

Function Documentation

ClassImp

(

TDbiConnectionMaintainer

)

Definition at line 10 of file TDbiConnectionMaintainer.cxx.

References SK_DBI_Trace.

                                                                         {

// For database connections that are not permanent, the connection is
// closed as soon as the last associated TDbiStatement is
// deleted. However, standard context queries involve several separate
// SQL queries, each using its own TDbiStatement and hence each involving
// a separate connection.  To maintain a single connection for the entire
// set of SQL queries a TDbiConnectionMaintainer can be use.  On creation
// it connects to every TDbiConnection which prevents it from closing.  On
// destruction it disconnects from them allowing them to close, if
// temporary, once any other associated TDbiStatement.hxxas been deleted.


  SK_DBI_Trace( "Creating TDbiConnectionMaintainer" << "  ");

  fCascader = cascader;
  if ( fCascader ) fCascader->HoldConnections();

}