解决循环依赖关系 Java

Question

下面我发布了一个带有循环依赖的简单 Java 代码示例。

MyObject 有两个成员（myObject1 和 myObject2），它们引用了对象本身。

有没有办法在解决依赖关系的同时保持功能？

public abstract class AbstractMyObject {

   public void myMethod(int param) { 
       System.out.println(param);
   }
}

public class MyObject extends AbstractMyObject  {

   private MyObject1 myObject1;
   private MyObject2 myObject2;

   public MyObject() {
        myObject1 = new MyObject1( this );
        myObject2 = new MyObject2( this );
        ...
   }

   private void aMethod() {
      myObject1.doSomething();
      myObject2.doSomething();
   }
}

public class MyObjectWrapper { 
   private MyObject myObject;

   public MyObjectWrapper (MyObject myObject) {
       this.myObject = myObject;
   }

   public void myMethod(int param) {
     this.myObject.myMethod(param);
   }
}

public class MyObject1 extends MyObjectWrapper {

  public MyObject1(MyObject myObject) {
     super(myObject);
  } 

  private void aMethod() {
    myMethod(1);
  }

  public void doSomething() {
    ...
  }
}

public class MyObject2 extends MyObjectWrapper {

  public MyObject2(MyObject myObject) {
     super(myObject);
  } 

  private void aMethod() {
    myMethod(2);  
  }

  public void doSomething() {
    ...
  }
}

Answer 1

声明接口：

public interface class MyInterface {    
    void myMethod(int param);
}

实现接口：

public class MyObject implements MyInterface {

在包装器和后代中使用接口而不是具体的 class MyObject:

public class MyObjectWrapper { 
   private MyInterface myObject;

   public MyObjectWrapper (MyInterface myObject) {
       this.myObject = myObject;
   }

   public myMethod(int param) {
     this.myObject.myMethod(param);
   }
}

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