Determine the Fqn from an object

[swtet]

Is there a way that I can get the Fqn from an object that has been attached to the cache? I can keep track of the Fqn in the object myself but it seems like the cache should know that already so keeping a dupe doesn't make much sense.

Thanks

[jason.greene]

Are you looking for the internal fqn, or all referencing fqns?

As an example:

c.attach("/a", obj)
c.attach("/b", obj)

Would result in something like this:

/a -> /internal/123
/b -> /internal/123

[swtet]

Basically at some point in time I want to detach() the object from the cache but at that point I have a reference to the object itself not the Fqn. So, I need to be able to call detach() but I would prefer not keep track of the Fqn in the object itself (separation of concerns and all that). Even a detach( Object ) API would work for my situation (if you wanted to remove all references to the object). I suppose it might get tricky if that object is attached to more than one point in the cache.

Not sure I answered your question directly but hopefully that helps clarify what I am trying to do.

Thanks.

[jason.greene]

Sorry for the delayed reply. I just got back from a stretch of travel, and this one fell through the cracks.

The following is scheduled:
http://jira.jboss.org/jira/browse/PCACHE-72

The only problem with a super-detach method like you describe is when there is inter-object references. For example, if you have:

foo.setBar(bar);
cache.attach("/foo", foo);
cache.attach("/bar", bar);
cache.detach(bar);

Then a successive foo.getBar() would return null. Is this the behavior you would want?

[swtet]

I personally don't currently have a use case where I would have two objects attached to the cache that also referred to each other. I was thinking more of the case where:

cache.attach( "/foo1", foo );
cache.attach( "/foo2", foo );
cache.detach( foo );

That would cause /foo1 and /foo2 references to go away. I wouldn't expect foo.getBar() to return null in your example. I would expect the "/bar" cache reference to go away but the object would still stay in the cache because it is referenced by another object that is still in the cache.

[vseadara]

I have a ssimilar requirement as mentioned in the last post

cache.attache("/foo1", foo);
cache.attach("/foo2", foo);

Now I want to remove the object foo from the cache
for ex: cache.detach(foo);

By doing so , i want to remove the references /foo1 & /foo2 to go away. Is there any api alreaaddy existing for this?