DataManager.cxx

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#include "QGlobalDataManager.hh"
#include "QGlobalRWFactory.hh"
#include "QVector.hh"
#include "QRunDataHandle.hh"
#include <iostream>
 
using namespace Diana;
using std::cout;
 
int main()
{
    // Create the GlobalDataManager, in diana there is a common instance that
    // is accessed via QBaseModule::GlobalData()
    QGlobalDataManager dm;
    // set the owner of the new objects that we will save
    dm.SetOwner("DataManagerTest");
    
    // Save a QVector to file
    QVector vec(3);
    vec[0] = 1;    vec[1] = 2; vec[2] = 3;
    GlobalHandle<QVector> hvec("MyQVector");
    hvec.Set(vec);
    dm.Set(&hvec,"dmtest.root");
 
    // Get RunData from DB and save it to file, owner will remain "DAQ"
    QRunDataHandle rHandle(753);
    dm.Get("DAQ",&rHandle,"DB");
    dm.Set(&rHandle,"dmtest.root");
 
    // Modify RunData and set to file, owner will be "DataManagerTest" since we modified it
    QRunData newRunData = rHandle.Get();
    newRunData.SetThermometerChannel(69);
    // create a new handle, since each object needs its own handle
    QRunDataHandle nHandle(newRunData.GetNumber());
    nHandle.Set(newRunData);
    dm.Set(&nHandle,"dmtest.root");
 
    // print objects in cache
    dm.Dump(cout);
    
    return 0;
}