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Thyra_MultiVectorAllocator.hpp
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00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
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00041 
00042 #ifndef THYRA_MULTI_VECTOR_ALLOCATOR_HPP
00043 #define THYRA_MULTI_VECTOR_ALLOCATOR_HPP
00044 
00045 #include "Thyra_VectorSpaceBase.hpp"
00046 #include "Teuchos_Assert.hpp"
00047 
00048 namespace Thyra {
00049 
00053 template<class Scalar>
00054 class MultiVectorAllocator {
00055 public:
00057   MultiVectorAllocator() : numMembers_(0) {}
00059   typedef Teuchos::RCP<MultiVectorBase<Scalar> >  ptr_t;         // required!
00061   MultiVectorAllocator( const Teuchos::RCP<const VectorSpaceBase<Scalar> > &vs, int numMembers )
00062     : vs_(vs), numMembers_(numMembers)
00063     {
00064 #ifdef TEUCHOS_DEBUG
00065       TEUCHOS_TEST_FOR_EXCEPTION( vs.get()==NULL, std::logic_error, "Error!" );
00066 #endif      
00067     }
00069   const ptr_t allocate() const { return vs_->createMembers(numMembers_); }  // required!
00070 private:
00071   Teuchos::RCP<const VectorSpaceBase<Scalar> >      vs_;
00072   int                                                       numMembers_;
00073 };
00074 
00075 } // namespace Thyra
00076 
00077 #endif // THYRA_MULTI_VECTOR_ALLOCATOR_HPP
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