首页 \ 问答 \ 通用方法获取唯一参数并返回唯一参数Java(Generic Method That takes unique parameter and returns unique parameters Java)

通用方法获取唯一参数并返回唯一参数Java(Generic Method That takes unique parameter and returns unique parameters Java)

我有一个要求,函数在哪里采用不同的参数并返回唯一的对象。 所有这些功能执行相同的操作。

即。

public returnObject1 myfunction( paramObject1 a, int a) {
returnObject1 = new returnObject1();
returnObject1.a = paramObject1.a;
return returnObject1;
}

public returnOject2 myfunction( paramObject2 a, int a){
 returnObject2 = new returnObject2();
 returnObject2.a = paramObject2.a;
 return returnObject2;
}

如上所示,这两个函数都执行相同的任务,但它们将不同的参数作为输入并返回不同的对象。

我想尽量减少编写执行相同任务的不同函数。

是否可以为此编写一个通用方法,可以根据对函数的调用替换参数?

paramObject和returnObject基本上是两个具有不同变量的类。 它们彼此无关。

我的目标是我不想做函数重载,因为函数执行几乎相同的工作。 我想有一个功能可以处理不同的输入和不同的返回输出。

我的目标是做这样的事情(如果可能的话):

public static < E > myfunction( T a, int a ) {
  // do work
}

返回类型E和输入T可以保持变化。


I have a requirement where in the function takes different parameters and returns unique objects. All these functions perform the same operation.

ie.

public returnObject1 myfunction( paramObject1 a, int a) {
returnObject1 = new returnObject1();
returnObject1.a = paramObject1.a;
return returnObject1;
}

public returnOject2 myfunction( paramObject2 a, int a){
 returnObject2 = new returnObject2();
 returnObject2.a = paramObject2.a;
 return returnObject2;
}

As you can see above, both the function do the same task but they take different parameters as input and return different objects.

I would like to minimize writing different functions that does the same task.

Is it possible to write a generic method for this that can substitute the parameters based on the call to the function?

paramObject and returnObject are basically two classes that have different variables. They are not related to each other.

My objective is that I do not want to do function overloading since the functions do almost the same work. I would like to have a single function that can handle different input and different return output.

my aim is to do something like this (if possible):

public static < E > myfunction( T a, int a ) {
  // do work
}

The return type E and the input T can keep varying.


原文:https://stackoverflow.com/questions/44951581
更新时间:2019-12-07 13:35

最满意答案

创建interface Foo并在paramObject1paramObject2类中实现此interface 。 现在你的方法应该是这样的:

public Foo myFunction(Foo foo, int a){
    //Rest of the code.
    return foo;
}

Make interface Foo and implement this interface in both paramObject1 and paramObject2 class. Now your method should be look like:

public Foo myFunction(Foo foo, int a){
    //Rest of the code.
    return foo;
}
2017-07-06

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