Tracking the stored object, should it be stored into an already processed object and popped off the stack, preserves reachability through the write barrier.

跟踪存储的对象，应将其存储在已经处理过的对象中并从栈中弹出，通过写入屏障保持可获取性。

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Note that method changes to the class are irrelevant to db4o because it doesn't store methods or method implementations as part of the stored object data, and ditto for constructor refactorings.

注意，对类中方法的更改与db4o无关，因为它不将方法或方法实现作为存储的对象数据的一部分，对于构造函数的重构也是如此。

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Each object stored is composed of two entities: data and metadata.

存储的每个对象由两个实体组成：数据和元数据。

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