adapter_pattern_example.cpp File Reference

#include <kcenon/common/adapters/adapter.h>
#include <iostream>
#include <memory>
#include <string>

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Classes
class	DataService

Functions
template<typename T >
void	use_service (const adapter< T > &svc)
int	main ()

Function Documentation

main()

int main

(

)

Definition at line 45 of file adapter_pattern_example.cpp.

{
    std::cout << "=== Adapter Pattern Example ===\n\n";
 
    // 1. Wrap a shared_ptr
    std::cout << "1. Shared pointer adapter:\n";
    {
        auto service = std::make_shared<DataService>("SharedService");
        auto adapted = adapter(service);
 
        std::cout << "   Name via ->: " << adapted->get_name() << "\n";
        use_service(adapted);
    }
 
    // 2. Wrap a unique_ptr
    std::cout << "\n2. Unique pointer adapter:\n";
    {
        auto service = std::make_unique<DataService>("UniqueService");
        auto adapted = adapter(std::move(service));
 
        std::cout << "   Name via ->: " << adapted->get_name() << "\n";
        std::cout << "   Raw ptr: " << (adapted.get() != nullptr ? "valid" : "null") << "\n";
    }
 
    // 3. Use make_shared_adapter helper
    std::cout << "\n3. make_shared_adapter helper:\n";
    {
        auto adapted = make_shared_adapter<DataService>("FactoryService");
        std::cout << "   Name: " << adapted->get_name() << "\n";
        adapted->process();
    }
 
    // 4. Adapter traits inspection
    std::cout << "\n4. Adapter traits:\n";
    {
        using shared_traits = adapter_traits<std::shared_ptr<DataService>>;
        using unique_traits = adapter_traits<std::unique_ptr<DataService>>;
 
        std::cout << "   shared_ptr is_smart_pointer: "
                  << (shared_traits::is_smart_pointer ? "true" : "false") << "\n";
        std::cout << "   shared_ptr supports_weak: "
                  << (shared_traits::supports_weak ? "true" : "false") << "\n";
        std::cout << "   unique_ptr is_smart_pointer: "
                  << (unique_traits::is_smart_pointer ? "true" : "false") << "\n";
        std::cout << "   unique_ptr supports_weak: "
                  << (unique_traits::supports_weak ? "true" : "false") << "\n";
    }
 
    std::cout << "\nDone.\n";
    return 0;
}

References kcenon::common::adapters::adapter(), kcenon::common::adapters::make_shared_adapter(), and use_service().

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use_service()

template<typename T >

void use_service

(

const adapter< T > &

svc

)

Examples

adapter_pattern_example.cpp.

Definition at line 39 of file adapter_pattern_example.cpp.

{
    std::cout << "   Pointer valid: " << (svc.get() != nullptr ? "true" : "false") << "\n";
    svc->process();
}

References kcenon::common::adapters::adapter< T, Traits >::get().

Referenced by main().

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