Odd. MapQueryCacheFactory supports 'removeGroup' method (although it
is not very efficient compared to say OSQueryCacheFactory). Can you
possibly run this in debugger to check the state of the cache?
Andrus
On May 25, 2010, at 3:47 PM, Bob Schellink wrote:
Hi all,
I'm trying to add Cayenne caching for a web project I'm working on.
A new DataContext is created for
each request so I'm looking at adding a shared cache for entities
that doesn't change often. However
if one of those entities does get updated, I want to refresh the
cache.
To start off with I'm trying to test with a small standalone
application, following the
documentation here:
http://cayenne.apache.org/doc/query-result-caching.html
My test is fairly similar expect that I specify SHARED_CACHE instead
of LOCAL_CACHE:
SelectQuery query = new SelectQuery(Artist.class);
query.setCacheStrategy(QueryCacheStrategy.SHARED_CACHE);
query.setCacheGroups("artists");
I'm also using the default LRUMap.
From my test I can see that the query data is cached, but when I
update the entity, invoke
removeGroup and execute my query a second time, the database is not
hit, so I assume the cached data
is returned.
Before going further I just wanted to check whether removeGroup does
in fact work on shared caches?
Chances are that I've misconfigured the caching.
Kind regards
Bob
