Java：参数化的可运行 [英] Java: Parameterized Runnable

问题描述

标准 Runnable 接口只有非参数化 run（）方法。还有 Callable< V> 接口，其中 call（）方法返回泛型类型的结果。我需要传递泛型参数，如下所示：

   interface MyRunnable< E> {
 public abstract void run（E reference）; 
}  

是否有用于此目的的标准接口，或者我必须自己声明该基本接口？ p>

解决方案

通常，您可以实现 Runnable 或 Callable 作为支持genertic输入参数的类;例如

  public class MyRunnable< T>实现Runnable {
 private final T t; 
 
 public MyRunnable（T t）{
 this.t = t; 
} 
 
 public void run（）{
 //引用t。 
} 
} 
  

Standard Runnable interface has only non-parametrized run() method. There is also Callable<V> interface with call() method returning result of generic type. I need to pass generic parameter, something like this:

interface MyRunnable<E> {
  public abstract void run(E reference);
}

Is there any standard interface for this purpose or I must declare that basic one by myself?

解决方案

Typically you would implement Runnable or Callable as a class that supported a genertic input parameter; e.g.

public class MyRunnable<T> implements Runnable {
  private final T t;

  public MyRunnable(T t) {
    this.t = t;
  }

  public void run() {
    // Reference t.
  }
}

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