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// NOX: An Object-Oriented Nonlinear Solver Package
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#ifndef NOX_SHARED_OBJECT_TEMPLATE_H
#define NOX_SHARED_OBJECT_TEMPLATE_H
#include "NOX_Common.H"
#include "Teuchos_RCP.hpp"
namespace NOX {
/*! \brief Holder for objects that are shared between NOX::Abstract::Groups.
*
* Due to the size of certain operators (i.e. the Jacobian and
* Preconditioning Matrices), we cannot afford to have
* multiple copies. Instead we implement a shared object class that
* that all groups use.
*/
template <class Object, class Owner>
class SharedObject {
public:
//! Constructor
SharedObject(const Teuchos::RCP<Object>& newObject) :
object(newObject), owner(NULL) {};
//! Destructor
~SharedObject(){};
//! Get a non-const reference to the underlying object
Teuchos::RCP<Object>
getObject(const Owner* newOwner)
{
owner = newOwner;
return object;
};
//! Return a const reference to the underlying object
Teuchos::RCP<const Object> getObject() const
{ return object;};
//! Return true if testOwner is the owner of the Jacobian
bool isOwner(const Owner* checkOwner) const
{return (owner == checkOwner);};
protected:
//! Pointer to the shared object.
Teuchos::RCP<Object> object;
//! Pointer to const object that owns the shared object.
const Owner* owner;
};
} // namespace NOX
#endif
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