source: src/Actions/Reaction_impl.hpp@ d058e6

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Last change on this file since d058e6 was 1540859, checked in by Frederik Heber <heber@…>, 14 years ago

Added Reaction as Action with a return value.

  • this is derived from Calculation, only that it is not a Process but a simpler Action.
  • A Reaction cannot be undone and sets an internal result.
  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 * Reaction_impl.hpp
3 *
4 * Created on: Oct 13, 2011
5 * Author: heber
6 */
7
8#ifndef REACTION_IMPL_HPP_
9#define REACTION_IMPL_HPP_
10
11// include config.h
12#ifdef HAVE_CONFIG_H
13#include <config.h>
14#endif
15
16#include "CodePatterns/Assert.hpp"
17
18#include "Actions/Action.hpp"
19
20#include <cassert>
21
22using namespace MoleCuilder;
23
24template<typename T>
25Reaction<T>::Reaction(const ActionTrait &_trait, bool _doRegister) :
26 Action(_trait,_doRegister),
27 result(0),
28 done(false)
29{}
30
31template<typename T>
32Reaction<T>::~Reaction()
33{
34 delete result;
35}
36
37template<typename T>
38Action::state_ptr Reaction<T>::performCall(){
39 reset();
40 (*this)();
41 return Action::success;
42}
43
44template<typename T>
45Action::state_ptr Reaction<T>::performUndo(Action::state_ptr){
46 ASSERT(0,"Cannot undo a calculation");
47 return Action::success;
48}
49template<typename T>
50Action::state_ptr Reaction<T>::performRedo(Action::state_ptr){
51 ASSERT(0,"Cannot redo a calculation");
52 return Action::success;
53}
54
55template<typename T>
56bool Reaction<T>::canUndo()
57{
58 return false;
59}
60
61template<typename T>
62bool Reaction<T>::shouldUndo()
63{
64 return false;
65}
66
67// methods for calculation infrastructure
68
69template<typename T>
70T Reaction<T>::operator()(){
71 if(!done){
72 result = doCalc();
73 done = true;
74 }
75 return *result;
76}
77
78template<typename T>
79bool Reaction<T>::hasResult(){
80 return done;
81}
82
83template<typename T>
84T Reaction<T>::getResult(){
85 ASSERT(done, "Reaction<T>::getResult() - No result calculated yet.");
86 return *result;
87}
88
89template<typename T>
90void Reaction<T>::reset(){
91 done = false;
92 delete result;
93 result = NULL;
94}
95
96#endif /* REACTION_IMPL_HPP_ */
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