AbstractLinAlgPack_VectorSpaceBlocked.hpp

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#ifndef VECTOR_SPACE_COMPOSITE_STE_H
#define VECTOR_SPACE_COMPOSITE_STE_H

#include <vector>

#include "AbstractLinAlgPack_VectorSpace.hpp"

namespace AbstractLinAlgPack {

class VectorSpaceBlocked : public VectorSpace {
public:

  VectorSpaceBlocked(
    const VectorSpace::space_ptr_t          vector_spaces[]
    ,int                                    num_vector_spaces
    ,const VectorSpace::space_fcty_ptr_t   &small_vec_spc_fcty = Teuchos::null
    );
  
  void initialize(
    const VectorSpace::space_ptr_t         vec_spaces[]
    ,int                                   num_vector_spaces
    ,const VectorSpace::space_fcty_ptr_t   &small_vec_spc_fcty = Teuchos::null
    );

  int num_vector_spaces() const;

    /* Returns an array (length <tt>this->num_vector_spaces()</tt>) consistent with
     * <tt>vec_spaces</tt> passed into <tt>this->initialize()</tt>.
     */
  const VectorSpace::space_ptr_t*  vector_spaces() const;

  const index_type* vector_spaces_offsets() const;

  void get_vector_space_position( index_type i, int* kth_vector_space, index_type* kth_global_offset ) const;

  
   bool is_compatible(const VectorSpace& vec_space) const;
  index_type dim() const;
  space_fcty_ptr_t small_vec_spc_fcty() const;
  vec_mut_ptr_t create_member() const;
  multi_vec_mut_ptr_t create_members(size_type num_vecs) const;
  space_ptr_t clone() const;
  space_ptr_t sub_space(const Range1D& rng) const;


private:

  // ////////////////////////////////////////////
  // Private types

  typedef std::vector<VectorSpace::space_ptr_t>   vector_spaces_t;
  typedef std::vector<index_type>                 vec_spaces_offsets_t;

  // ////////////////////////////////////////////
  // Private data members

#ifdef DOXYGEN_COMPILE
  VectorSpace           *vector_spaces;
  VectorSpaceFactory    *small_vec_spc_fcty;
#else
  vector_spaces_t       vector_spaces_;
  // Pointer to the list of vector spaces.

  vec_spaces_offsets_t  vec_spaces_offsets_;
  // vec_spaces_offset_[k] gives the offset for vector_spaces_[k] in the 
  // global composite vector.  vec_spaces_offset_[vector_spaces_.size()] gives
  // the total dimension of the global composite vector.

  VectorSpace::space_fcty_ptr_t   small_vec_spc_fcty_;
  // Vector space factory for small_vec_spc_fcty
#endif

  // Not defined and not to be called
  VectorSpaceBlocked();

}; // end class VectorSpaceBlocked

// /////////////////////////////////////////////////////////
// Inline members

inline
int VectorSpaceBlocked::num_vector_spaces() const
{
  return vector_spaces_.size();
}

inline
const VectorSpace::space_ptr_t*
VectorSpaceBlocked::vector_spaces() const
{
  return &vector_spaces_[0];
}

inline
const index_type* VectorSpaceBlocked::vector_spaces_offsets() const
{
  return &vec_spaces_offsets_[0];
}

} // end namespace AbstractLinAlgPack

#endif // VECTOR_SPACE_COMPOSITE_STE_H