EpetraExt_Transform_Composite.h

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//-----------------------------------------------------------------------
// EpetraExt_Transform_Composite.h
//-----------------------------------------------------------------------
 
#ifndef EPETRAEXT_TRANSFORM_COMPOSITE_H
#define EPETRAEXT_TRANSFORM_COMPOSITE_H
 
#include <EpetraExt_Transform.h>
 
#include <list>
 
namespace EpetraExt {


template<typename T>
class Transform_Composite : public SameTypeTransform<T>
{
 
 public:
 
  typedef SameTypeTransform<T> * TransformTypePtr;

  Transform_Composite() {}

  virtual ~Transform_Composite();


  void addTransform( TransformTypePtr new_trans );


  virtual
  typename Transform<T,T>::NewTypeRef
  operator()
  ( typename Transform<T,T>::OriginalTypeRef orig );


  virtual bool fwd();


  virtual bool rvs();
 
 protected:
 
  typedef typename std::list<TransformTypePtr>::iterator         TransListIter;
  typedef typename std::list<TransformTypePtr>::reverse_iterator TransListRvsIter;
 
  std::list<TransformTypePtr> transList_;
 
}; // end class Tranform_Composite
 
template<typename T>
Transform_Composite<T>::
~Transform_Composite()
{
  TransListIter iter = transList_.begin();
  TransListIter end = transList_.end();
  for( ; iter != end; ++iter ) delete *iter;
}
 
template<typename T>
void
Transform_Composite<T>::
addTransform( TransformTypePtr new_trans )
{
  transList_.push_back( new_trans );
}
 
template<typename T>
typename Transform<T,T>::NewTypeRef
Transform_Composite<T>::
operator()
( typename Transform<T,T>::OriginalTypeRef orig )
{
  this->origObj_ = &orig;
  this->newObj_ = &orig;
 
  TransListIter iter = transList_.begin();
  TransListIter end = transList_.end();
  for( ; iter != end; ++iter )
    this->newObj_ = &((**iter)( *(this->newObj_) ));
 
  return *(this->newObj_);
}
 
template<typename T>
bool
Transform_Composite<T>::
fwd()
{
  bool success = true;
 
  TransListIter iter = transList_.begin();
  TransListIter end = transList_.end();
  for( ; iter != end; ++iter )
    if( !(**iter).fwd() ) return false;
 
  return success;
}
 
template<typename T>
bool
Transform_Composite<T>::
rvs()
{
  bool success = true;
 
  TransListRvsIter iter = transList_.rbegin();
  TransListRvsIter end = transList_.rend();
  for( ; iter != end; ++iter )
    if( !(**iter).rvs() ) return false;
 
  return success;
}
 
} //namespace EpetraExt
  
#endif //EPETRAEXT_TRANSFORM_COMPOSITE_H