java对象的定义，java主动对象模式_POCO的主动对象

摘自： http://pocoproject.org/docs/00100-GuidedTour.html

Active object is an object that has methods executing in their own

thread. This makes asynchronous member function calls possible — call a

java对象的定义、member function, while the function executes, do a bunch of other

things, and, eventually, obtain the function's return value. The

following example shows how this is done in POCO. The ActiveAdder

class in defines an active method add()

java调用另一个类的成员变量。, implemented by the addImpl()

member function. Invoking the active method in main()

yields

an Poco::ActiveResult

java对象是什么，(also known as a

future), that eventually receives the function's return value.

#include "Poco/ActiveMethod.h"

#include "Poco/ActiveResult.h"

java中类和对象的关系、#include

using Poco::ActiveMethod;

using Poco::ActiveResult;

class ActiveAdder

java策略模式？{

public:

ActiveObject(): activeAdd(this, &ActiveAdder::add)

{

java创建对象，}

ActiveMethod, ActiveAdder> add;

private:

int addImpl(const std::pair& args)

java序列化、{

return args.first + args.second;

}

};

int main(int argc, char** argv)

{

ActiveAdder adder;

ActiveResult sum = adder.add(std::make_pair(1, 2));

// do other things

sum.wait();

std::cout << sum.data() << std::endl;

return 0;

}

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2010-06-22 14:12

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