NavGenLattice.cxx

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// $Id: NavGenLattice.cxx,v 1.6 2000/11/06 12:33:52 west Exp $
//
// NavGenLattice
//
// Package: Nav (Navigational Model).

// Begin_Html<img src="../../pedestrians.gif" align=center>
// <a href="../source_warning.html">Warning for beginners</a>.<br>
// Also see <a href="../../root_crib/index.html">The ROOT Crib</a> and
// <a href="../index.html">The MINOS Class User Guide</a>End_Html
//
// N. West 03/20000
//
//   
// Purpose: Encapsulates a Root container derived Lattice and creates 
//          it on demand. The Lattice type is (left) 1 : n (right).
//
//

#include "LeakChecker/Lea.h"
#include "Lattice/Lattice.h"
#include "Lattice/LatticeBuilder.h"
#include "Navigation/NavGenLattice.h"
#include "Navigation/NavPrimer.h"
#include "Navigation/NavKey.h"
#include "MessageService/MsgService.h"
#include "TCollection.h"

class TObject;

ClassImp(NavGenLattice)

//   Definition of static data members
//   *********************************

CVSID("$Id: NavGenLattice.cxx,v 1.6 2000/11/06 12:33:52 west Exp $");

// Definition of member functions (alphabetical order)
// ***************************************************


//.....................................................................

void NavGenLattice::Clear(){
//
//
//  Purpose:  Clear any dynamic data.
//
//  Arguments: None
//
//  Return:    n/a
//
//  Contact:   N. West
//
//  Specification:-
//  =============
//
//  o Drop Lattice.
//

//  Program Notes:-
//  =============

//  None.

  if ( fLattice ) delete fLattice;
  fLattice = 0;

}

//.....................................................................

NavGenLattice::NavGenLattice(const Char_t* leftClass,
                             KeyFunc leftKey,
                             const Char_t* rightClass,
                             KeyFunc rightKey,
                             Int_t rship ) :

NavPrimerGenerator(leftClass,rightClass,rship),
fLattice(0),
fLeftKey(leftKey),
fRightKey(rightKey)


{
//
//
//  Purpose:  Constructor
//
//  Arguments: 
//    leftClass    in    Name of left class.
//    leftKey      in    Key function for left class 
//    rightClass   in    Name of right class.
//    rightKey     in    Key function for right class 
//    rship        in    Relationship number.
//
//  Return:    n/a
//
//  Contact:   N. West
//
//  Specification:-
//  =============
//
//  o Create a NavGenLattice.

//  Program Notes:-
//  =============

//  None.

  LEA_CTOR  //Leak Checker

}
//.....................................................................

NavGenLattice::~NavGenLattice()
{
//
//
//  Purpose:  Destructor
//
//  Arguments: 
//    None.
//
//  Return:    n/a
//
//  Contact:   N. West
//
//  Specification:-
//  =============
//
//  o Destroy a NavGenLattice.

//  Program Notes:-
//  =============

//  None.

  LEA_DTOR  //Leak Checker

  Clear();

}
//.....................................................................

void NavGenLattice::Rebuild() {
//
//
//  Purpose:  Rebuild Lattice.
//
//  Arguments: None.
//
//  Return:    n/a
//
//  Contact:   N. West
//
//  Specification:-
//  =============
//
//  o Rebuild Lattice.

//  Program Notes:-
//  =============

//  None.


//  Remove old Lattice.

  Clear();

//  Create new empty Lattice for current event.

  const Char_t* leftClass  = LeftClass();
  const Char_t* rightClass = RightClass();

  fLattice = new Lattice(leftClass,
                         rightClass,
                         LatticeBase::RLinkMulti);

//  Make sure we can find both ROOT containers.

  const TCollection* leftCol  = NavPrimer::Instance()
                          ->FindTCollection(leftClass);
  const TCollection* rightCol = NavPrimer::Instance()
                          ->FindTCollection(rightClass);

  if ( ! leftCol )  MSG("Nav",Msg::kError) 
        << "Cannot find  ROOT container for: " << leftClass  << endl;
  if ( ! rightCol )  MSG("Nav",Msg::kError) 
        << "Cannot find  ROOT container for: " << rightClass  << endl;

  if ( ! leftCol || ! rightCol ) return;



//  Prepare a builder.

  LatticeBuilder builder( fLattice, Lattice::kLeft );


// Iterate over left class objects and give their keys to the builder.

  TIter leftItr(leftCol);
  while ( TObject* leftObj = leftItr() ) {
    NavKey key = (*fLeftKey)(leftObj);

    builder.AddPrimary(key.ForceLong_t(), leftObj);
  }

// Iterate over right class objects and give their associated keys
// to the builder.

  TIter rightItr(rightCol);
  while ( TObject* rightObj = rightItr() ) {
    NavKey key = (*fRightKey)(rightObj);
    builder.AddSecondary(key.ForceLong_t(), rightObj);
  }


}

/*    Template for New Member Function

//.....................................................................

NavGenLattice:: {
//
//
//  Purpose:  
//
//  Arguments: 
//    xxxxxxxxx    in    yyyyyy
//
//  Return:    
//
//  Contact:   N. West
//
//  Specification:-
//  =============
//
//  o 

//  Program Notes:-
//  =============

//  None.


}

*/

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