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\begin{lstlisting}[float,caption={[A classic Singleton design pattern implementation(I)] Declaration of {\tt IntegratorFactory} class.},label={appendixScheme:singletonDeclaration}] |
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class IntegratorFactory { |
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public: |
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static IntegratorFactory* getInstance(); |
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protected: |
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< |
IntegratorFactory(); |
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private: |
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static IntegratorFactory* instance_; |
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> |
public: |
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> |
static IntegratorFactory* |
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> |
getInstance(); |
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> |
protected: |
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> |
IntegratorFactory(); |
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> |
private: |
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> |
static IntegratorFactory* instance_; |
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}; |
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\end{lstlisting} |
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\begin{lstlisting}[float,caption={[The implementation of Factory pattern (I)].},label={appendixScheme:factoryDeclaration}] |
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class IntegratorFactory { |
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public: |
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< |
typedef std::map<string, IntegratorCreator*> CreatorMapType; |
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> |
public: |
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> |
typedef std::map<string, IntegratorCreator*> CreatorMapType; |
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|
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< |
bool registerIntegrator(IntegratorCreator* creator) { |
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< |
return creatorMap_.insert(creator->getIdent(), creator).second; |
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} |
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> |
bool registerIntegrator(IntegratorCreator* creator) { |
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> |
return creatorMap_.insert(creator->getIdent(), creator).second; |
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> |
} |
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|
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< |
Integrator* createIntegrator(const string& id, SimInfo* info) { |
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< |
Integrator* result = NULL; |
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< |
CreatorMapType::iterator i = creatorMap_.find(id); |
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< |
if (i != creatorMap_.end()) { |
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< |
result = (i->second)->create(info); |
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< |
} |
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< |
return result; |
187 |
> |
Integrator* createIntegrator(const string& id, SimInfo* info) { |
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> |
Integrator* result = NULL; |
189 |
> |
CreatorMapType::iterator i = creatorMap_.find(id); |
190 |
> |
if (i != creatorMap_.end()) { |
191 |
> |
result = (i->second)->create(info); |
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} |
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+ |
return result; |
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+ |
} |
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|
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private: |
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< |
CreatorMapType creatorMap_; |
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> |
private: |
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> |
CreatorMapType creatorMap_; |
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}; |
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\end{lstlisting} |
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\begin{lstlisting}[float,caption={[The implementation of Factory pattern (III)]Souce code of creator classes.},label={appendixScheme:integratorCreator}] |
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|
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class IntegratorCreator { |
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< |
public: |
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> |
public: |
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IntegratorCreator(const string& ident) : ident_(ident) {} |
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const string& getIdent() const { return ident_; } |
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virtual Integrator* create(SimInfo* info) const = 0; |
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|
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< |
private: |
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> |
private: |
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string ident_; |
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}; |
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< |
template<class ConcreteIntegrator> |
215 |
< |
class IntegratorBuilder : public IntegratorCreator { |
216 |
< |
public: |
217 |
< |
IntegratorBuilder(const string& ident) : IntegratorCreator(ident) {} |
218 |
< |
virtual Integrator* create(SimInfo* info) const { |
219 |
< |
return new ConcreteIntegrator(info); |
220 |
< |
} |
214 |
> |
template<class ConcreteIntegrator> class IntegratorBuilder : public |
215 |
> |
IntegratorCreator { |
216 |
> |
public: |
217 |
> |
IntegratorBuilder(const string& ident) |
218 |
> |
: IntegratorCreator(ident) {} |
219 |
> |
virtual Integrator* create(SimInfo* info) const { |
220 |
> |
return new ConcreteIntegrator(info); |
221 |
> |
} |
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}; |
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\end{lstlisting} |
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\begin{lstlisting}[float,caption={[The implementation of Visitor pattern (I)]Source code of the visitor classes.},label={appendixScheme:visitor}] |
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|
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class BaseVisitor{ |
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< |
public: |
248 |
< |
virtual void visit(Atom* atom); |
249 |
< |
virtual void visit(DirectionalAtom* datom); |
250 |
< |
virtual void visit(RigidBody* rb); |
247 |
> |
public: |
248 |
> |
virtual void visit(Atom* atom); |
249 |
> |
virtual void visit(DirectionalAtom* datom); |
250 |
> |
virtual void visit(RigidBody* rb); |
251 |
|
}; |
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|
253 |
|
\end{lstlisting} |
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\begin{lstlisting}[float,caption={[The implementation of Visitor pattern (II)]Source code of the element classes.},label={appendixScheme:element}] |
256 |
|
|
257 |
|
class StuntDouble { |
258 |
< |
public: |
259 |
< |
virtual void accept(BaseVisitor* v) = 0; |
258 |
> |
public: |
259 |
> |
virtual void accept(BaseVisitor* v) = 0; |
260 |
|
}; |
261 |
|
|
262 |
|
class Atom: public StuntDouble { |
263 |
< |
public: |
264 |
< |
virtual void accept{BaseVisitor* v*} { |
265 |
< |
v->visit(this); |
266 |
< |
} |
263 |
> |
public: |
264 |
> |
virtual void accept{BaseVisitor* v*} { |
265 |
> |
v->visit(this); |
266 |
> |
} |
267 |
|
}; |
268 |
|
|
269 |
|
class DirectionalAtom: public Atom { |
270 |
< |
public: |
271 |
< |
virtual void accept{BaseVisitor* v*} { |
272 |
< |
v->visit(this); |
273 |
< |
} |
270 |
> |
public: |
271 |
> |
virtual void accept{BaseVisitor* v*} { |
272 |
> |
v->visit(this); |
273 |
> |
} |
274 |
|
}; |
275 |
|
|
276 |
|
class RigidBody: public StuntDouble { |
277 |
< |
public: |
278 |
< |
virtual void accept{BaseVisitor* v*} { |
279 |
< |
v->visit(this); |
280 |
< |
} |
277 |
> |
public: |
278 |
> |
virtual void accept{BaseVisitor* v*} { |
279 |
> |
v->visit(this); |
280 |
> |
} |
281 |
|
}; |
282 |
|
|
283 |
|
\end{lstlisting} |