“隔离岛”垃圾收集 [英] "Island of isolation" of Garbage Collection

问题描述

任何人都可以解释隔离岛的垃圾收集概念吗？

Could anyone please explain the concept of Island of isolation of Garbage Collection?

推荐答案

对象引用对象B.对象B引用对象A.对象A和对象B都不被任何其他对象引用。这是一个孤岛。

Object A references object B. Object B references object A. Neither object A nor object B is referenced by any other object. That's an island of isolation.

基本上，隔离岛是一组相互引用的对象，但它们不被应用程序中的任何活动对象引用。严格来说，即使是一个未引用的对象也是一个孤立的岛屿。

Basically, an island of isolation is a group of objects that reference each other but they are not referenced by any active object in the application. Strictly speaking, even a single unreferenced object is an island of isolation too.

编辑点评：

class A {
   B myB; 
} 
class B { 
   A myA; 
} 

/* later */  
A a = new A(); 
B b = new B();  
a.b = b; 
b.a = a;

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