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// Thyra: Interfaces and Support for Abstract Numerical Algorithms
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#ifndef THYRA_VECTOR_SPACE_DEFAULT_BASE_DECL_HPP
#define THYRA_VECTOR_SPACE_DEFAULT_BASE_DECL_HPP
#include "Thyra_VectorSpaceBase_decl.hpp"
namespace Thyra {
/** \brief Node <tt>VectorSpaceBase</tt> subclass that provides default
* implementations for many functions using a default multi-vectors
* implementation.
*
* <b>Notes to Subclass Developers</b>
*
* Because of the default multi-vector implementation used in this node
* subclasses, a concrete subclass is only required to override four
* functions: <tt>dim()</tt>, <tt>isCompatible()</tt>, <tt>createMember()</tt>
* and <tt>smallVecSpcFcty()</tt>. Note that implementing the
* <tt>createMember()</tt> method also entails defining a concrete
* <tt>VectorBase</tt> subclass and defining <tt>smallVecSpcFcty()</tt>
* entails defining a concrete <tt>VectorSpaceFactoryBase</tt> subclass.
*
* If a subclass can support specialized multi-vectors, then the
* <tt>createMembers()</tt> function should be overridden as well. Note that
* implementing <tt>createMembers()</tt> also entails defining a concrete
* <tt>MultiVectorBase</tt> subclass.
*
* \ingroup Thyra_Op_Vec_ANA_Development_grp
*/
template<class Scalar>
class VectorSpaceDefaultBase : virtual public VectorSpaceBase<Scalar> {
protected:
/** @name Protected functions overridden from VectorSpaceBase */
//@{
/** \brief .
*
* The default implementation returns <tt>dynamic_cast<
* DefaultColumnwiseMultiVector<Scalar> >(return.get())!=NULL</tt>.
*/
RCP< MultiVectorBase<Scalar> > createMembers(int numMembers) const;
/** \brief .
*
* The default implementation of this function simply calls
* <tt>this->createMember()</tt> to create a vector then uses the explicit
* element access functions to set the elements and then only when the
* vector is destroyed is the data copied out of the vector and back into
* the elements pointed to by <tt>raw_v.values()</tt>.
*/
RCP<VectorBase<Scalar> >
createMemberView( const RTOpPack::SubVectorView<Scalar> &raw_v ) const;
/** \brief .
*
* The default implementation of this function simply calls
* <tt>this->createMember()</tt> to create a vector then uses the explicit
* element access functions to set the elements from
* <tt>raw_v.values()</tt>.
*/
RCP<const VectorBase<Scalar> >
createMemberView( const RTOpPack::ConstSubVectorView<Scalar> &raw_v ) const;
/** \brief .
*
* The default implementation of this function simply calls
* <tt>this->createMembers(raw_mv.numSubCols())</tt> to create a
* multi-vector then uses the explicit element access functions to set the
* elements and then only when the multi-vector is destroyed is the data
* copied out of the multi-vector and back into the elements pointed to by
* <tt>raw_mv.values()</tt>.
*/
RCP<MultiVectorBase<Scalar> >
createMembersView( const RTOpPack::SubMultiVectorView<Scalar> &raw_mv ) const;
/** \brief .
*
* The default implementation of this function simply calls
* <tt>this->createMembers()</tt> to create a multi-vector then uses the
* explicit element access functions to set the elements.
*/
RCP<const MultiVectorBase<Scalar> >
createMembersView( const RTOpPack::ConstSubMultiVectorView<Scalar> &raw_mv ) const;
//@}
};
} // end namespace Thyra
#endif // THYRA_VECTOR_SPACE_DEFAULT_BASE_DECL_HPP
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