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保持java线程间可见性的5种方式
| Primitive | Writes up to and including… | ...are made visible to… |
|---|---|---|
| Object | the end of a synchronized block or method | a thread entering a synchronized block or method for the same object. |
| Volatile field | a write to a volatile field | any thread reading that volatile field. |
| Thread | a call to Thread.start |
the newly started thread. |
| Thread | the final write made by a dying thread | any thread which successfully calls Thread.join on that thread. |
| Final field | the initialization of a final field (but only those writes affecting the field and any object it references) | any thread, provided that the constructor of the object containing the field doesn’t write the value of this anywhere eventually visible to other threads |
这些在《java并发编程实践》一书中已经有详细解释，特别是对于ReentrantLock、volatile域以及final域的讨论。今天在MenTaLguY的blog上看到这张表，摘录下
文章转自庄周梦蝶 ，原文发布时间2008-02-23
最后更新：2017-05-17 17:31:51