#ifndef ExClass_H
#define ExClass_H

#include "TObject.h"
#include "TObjArray.h"

#include <vector>
#ifdef WIN32
using namespace std;
#endif

// The include file which defines the ROOT class stored in the
// example TObjArray - see the m_collection data member below
#include "CollectionType.h"

/** @class ExClass
* @brief Example ROOT class.
*  
* @author Heather Kelly
* $Header$
*/

class ExClass : public TObject  
{
public:
    
    ExClass();
    
    virtual ~ExClass();
    
    /// clear lists, free pointers, etc., after read from / write to file
    virtual void Clear(Option_t *option ="");
    
    /// Initialize all data members except the TObjArray
    void initialize(UInt_t unsignedIntVal, const vector<Int_t>& intVec);
    
    inline UInt_t getUnsignedInt() const { return m_unsignedInt; };

    /// add an object to our collection
    void addCollectionElement(CollectionType *p);
    /// get an entry from our TObjArray
    CollectionType* getCollectionElement(Int_t index) const;
    /// return the whole TObjArray to the caller
    const TObjArray* getCollection() const { return m_collection; };
    inline UInt_t getCollectionCount() const { 
        return ((m_collection) ? m_collection->GetEntries() : 0); 
    };
    
private:

    /// Some private data member of this ROOT class
    UInt_t m_unsignedInt;
    
    /// Example TObjArray
    TObjArray *m_collection;
    /// static array to allow one-time array creation
    static TObjArray *m_staticCollection;
    
    /// Example STL vector used in a ROOT class
    vector<Int_t> m_exampleVector;
   
    // The number, one, denotes the version number for this class.
    // Initially, we start on version 1.
    // If later we make changes the this class (and we have already started
    // generating ROOT files using the old class definition - then 
    // increment the version number.
    ClassDef(ExClass,1)
};

#endif