[Jboss-dev-forums] [Design of JBossCache] - Re: Proposal: Flat 'Heap' for POJOs stored in PojoCache

[<ben...@jb...>]

Oops! Sorry. :-)

I mean this that I have created a while ago:
http://jira.jboss.com/jira/browse/JBCACHE-173

I have added the link to this post and will update it further later.

I am planning to implement the flat space approach in 2.0 (or 2.1) depending on the release schedule, I think. 

On the locking semantics to match the Java one, one thing that I have mentioned previously in the Jira is that if I have an example like the following:


  | Person p1 = new Person();
  | Address addr = new Address();
  | 
  | cache.attach(p1);
  | cache.attach(addr);
  | 
  | p1.setAddress(addr);
  | 

Then if thread 1 is doing:

  | tx.begin();
  | p1.setBlah();
  | ...
  | 

thread 2 will be blocked in this operation as well:

  | p1.getAddress().setZip(95123);
  | 

Same thing that if thread 2 goes first, then thread1 is blocked as well.

In Java, the behavior really depends on whether syncrhonized(this) is used for all of the methods or not.


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