libMesh
Public Member Functions | Private Attributes | List of all members
libMesh::ParameterMultiAccessor< T > Class Template Reference

Accessor object allowing reading and modification of the independent variables in a parameter sensitivity calculation. More...

#include <parameter_multiaccessor.h>

Inheritance diagram for libMesh::ParameterMultiAccessor< T >:
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Public Member Functions

 ParameterMultiAccessor ()=default
 Constructor: no parameters attached yet. More...
 
 ParameterMultiAccessor (const ParameterAccessor< T > &param_accessor)
 Constructor: take the first sub-accessor for the parameter. More...
 
 ~ParameterMultiAccessor ()=default
 
virtual void set (const T &new_value) override
 Setter: change the value of the parameter we access. More...
 
virtual const T & get () const override
 Getter: get the value of the parameter we access. More...
 
virtual std::unique_ptr< ParameterAccessor< T > > clone () const override
 
void push_back (const ParameterAccessor< T > &new_accessor)
 
std::size_t size () const
 
ParameterProxy< T > operator* ()
 Proxy: for backward compatibility, we allow codes to treat a ParameterAccessor as if it were a simple pointer-to-value. More...
 
ConstParameterProxy< T > operator* () const
 

Private Attributes

std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors
 

Detailed Description

template<typename T = Number>
class libMesh::ParameterMultiAccessor< T >

Accessor object allowing reading and modification of the independent variables in a parameter sensitivity calculation.

This is the "default" ParameterAccessor subclass: it simply stores a user-provided pointer to the parameter, and modifies the value at that location in memory.

Author
Roy Stogner
Date
2015 Stores a user-provided pointer to a parameter.

Definition at line 47 of file parameter_multiaccessor.h.

Constructor & Destructor Documentation

◆ ParameterMultiAccessor() [1/2]

template<typename T = Number>
libMesh::ParameterMultiAccessor< T >::ParameterMultiAccessor ( )
default

Constructor: no parameters attached yet.

◆ ParameterMultiAccessor() [2/2]

template<typename T = Number>
libMesh::ParameterMultiAccessor< T >::ParameterMultiAccessor ( const ParameterAccessor< T > &  param_accessor)
inline

Constructor: take the first sub-accessor for the parameter.

Definition at line 58 of file parameter_multiaccessor.h.

58  :
59  _accessors(1, param_accessor.clone()) {}
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

◆ ~ParameterMultiAccessor()

template<typename T = Number>
libMesh::ParameterMultiAccessor< T >::~ParameterMultiAccessor ( )
default

Member Function Documentation

◆ clone()

template<typename T = Number>
virtual std::unique_ptr<ParameterAccessor<T> > libMesh::ParameterMultiAccessor< T >::clone ( ) const
inlineoverridevirtual
Returns
A new copy of the accessor.

Implements libMesh::ParameterAccessor< T >.

Definition at line 104 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

105  {
106  auto pmp = std::make_unique<ParameterMultiAccessor<T>>();
107  for (auto & accessor : _accessors)
108  pmp->_accessors.push_back(accessor->clone());
109 
110  return pmp;
111  }
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

◆ get()

template<typename T = Number>
virtual const T& libMesh::ParameterMultiAccessor< T >::get ( ) const
inlineoverridevirtual

Getter: get the value of the parameter we access.

Implements libMesh::ParameterAccessor< T >.

Definition at line 88 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors, and libMesh::libmesh_assert().

89  {
90  libmesh_assert(!_accessors.empty());
91  const T & val = _accessors[0]->get();
92 #ifndef NDEBUG
93  // If you're already using inconsistent parameters we can't help
94  // you.
95  for (const auto & accessor : _accessors)
96  libmesh_assert_equal_to(accessor->get(), val);
97 #endif
98  return val;
99  }
libmesh_assert(ctx)
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

◆ operator*() [1/2]

template<typename T = Number>
ParameterProxy<T> libMesh::ParameterAccessor< T >::operator* ( )
inlineinherited

Proxy: for backward compatibility, we allow codes to treat a ParameterAccessor as if it were a simple pointer-to-value.

We can't safely allow "Number * n = parameter_vector[p]" to compile, but we can allow "*parameter_vector[p] += deltap" to work.

Definition at line 80 of file parameter_accessor.h.

80 { return ParameterProxy<T>(*this); }

◆ operator*() [2/2]

template<typename T = Number>
ConstParameterProxy<T> libMesh::ParameterAccessor< T >::operator* ( ) const
inlineinherited

Definition at line 82 of file parameter_accessor.h.

82 { return ConstParameterProxy<T>(*this); }

◆ push_back()

template<typename T = Number>
void libMesh::ParameterMultiAccessor< T >::push_back ( const ParameterAccessor< T > &  new_accessor)
inline

Definition at line 114 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors, and libMesh::ParameterAccessor< T >::clone().

115  {
116  _accessors.push_back(new_accessor.clone());
117  }
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

◆ set()

template<typename T = Number>
virtual void libMesh::ParameterMultiAccessor< T >::set ( const T &  new_value)
inlineoverridevirtual

Setter: change the value of the parameter we access.

Implements libMesh::ParameterAccessor< T >.

Definition at line 69 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors, and libMesh::libmesh_assert().

70  {
71  libmesh_assert(!_accessors.empty());
72 #ifndef NDEBUG
73  // Compare other values to the last one we'll change
74  const T & val = _accessors.back()->get();
75 #endif
76  for (auto & accessor : _accessors)
77  {
78  // If you're already using inconsistent parameters we can't
79  // help you.
80  libmesh_assert_equal_to(accessor->get(), val);
81  accessor->set(new_value);
82  }
83  }
libmesh_assert(ctx)
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

◆ size()

template<typename T = Number>
std::size_t libMesh::ParameterMultiAccessor< T >::size ( ) const
inline
Returns
The number of sub-accessors associated with this parameter. Useful for testing if the multi-accessor is empty/invalid.

Definition at line 124 of file parameter_multiaccessor.h.

References libMesh::ParameterMultiAccessor< T >::_accessors.

124 { return _accessors.size(); }
std::vector< std::unique_ptr< ParameterAccessor< T > > > _accessors

Member Data Documentation

◆ _accessors

template<typename T = Number>
std::vector<std::unique_ptr<ParameterAccessor<T> > > libMesh::ParameterMultiAccessor< T >::_accessors
private

The documentation for this class was generated from the following file: