Posted on 2008-02-23 10:44
dennis 阅读(829)
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java
| 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。