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//
// ***********************************************************************
//
// Amesos2: Templated Direct Sparse Solver Package
// Copyright 2011 Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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// modification, are permitted provided that the following conditions are
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//
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// @HEADER
#ifndef AMESOS2_ABSTRACTCONCRETEMATRIXADAPTER_HPP
#define AMESOS2_ABSTRACTCONCRETEMATRIXADAPTER_HPP
namespace Amesos2 {
/**
* This class provides a statically polymorphic abstract base class
* for concrete matrix adapters.
*
* If a matrix M inherits from another matrix class A, it's adapter
* should inherit from::
*
* \code
* AbstractConcreteMatrixAdapter<A,M>
* \endcode
*
* and the common functionality for matrices inheritting from A
* should reside in a specialization of
* AbstractConcreteMatrixAdapter
*
* For example, Epetra_CrsMatrix and Epetra_VbrMatrix both inherit
* from Epetra_RowMatrix. There is much functionality which is
* common, but some details, such as object construction is specific
* to each, so the \c get_impl function, which must create new
* instances should be adapted differently for each.
*
* \code
* template < typename M >
* AbstractConcreteMatrixAdapter<Epetra_RowMatrix, M>
* : MatrixAdapter<M> {
*
* // < ...common functions... >
*
* RCP<MatrixAdapter<M> > get_impl(){
* return static_cast<ConcreteMatrixAdapter<M>*>(this)->get_impl();
* }
* }
* \endcode
*
* So now the ConcreteMatrixAdapter specializations for
* Epetra_CrsMatrix and Epetra_VbrMatrix must only provide the
* \c get_impl function.
*/
template <class Abstract, class Matrix>
class AbstractConcreteMatrixAdapter {};
}
#endif // AMESOS2_ABSTRACTCONCRETEMATRIXADAPTER_HPP
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