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From Simone Tripodi <simone.trip...@gmail.com>
Subject [iBatis 3] Cache troubles
Date Tue, 17 Nov 2009 20:23:14 GMT
Hi all guys,
I've been doing some experiment using the last beta of iBatis 3 and
I've the feeling you happily fixed the inglorious IBATIS-555 issue
about the CacheKey unique hashcode generation on different JVMs :)

Now I've been porting my old stuff to the new iBatis implementation
and everything has worked fine until I plugged-in the cache, I really
hope you can help me to understand where I'm wrong: I implemented a
Memcached-based Cache class, wrapping the spy memcached client
(code.google.com/p/spymemcached/), injecting a singleton instance to
the Configuration programmatically using google-guice 2 and finally
referenced in the sql-map via the snippet:

<cache-ref namespace="memcached"/>

What I noticed, reading the logs, is the following:
* when flushing the statements defined in the sql map, is called the
method org.apache.ibatis.cache.Cache#clear(): that makes me a little
worried, because in a memcached context I ideally want to use just one
memcached client instance and reference it in the whole application,
when performing an insert operation I wouldn't flush the whole cache,
but rather remove only the interested statements; since I'm still used
to the old iBatis2 cache model, how can I fix it?
* no data is cached, the method
org.apache.ibatis.cache.Cache#putObject(Object,Object) is never

All the code I've been producing is public, you can find it on
google-code[1], and on the test directory you can find the scenario[2]
I described

Thanks in advance for your help, any kind of suggestion will be very

[1] http://code.google.com/p/ibaguice/source/browse/#svn/trunk
[2] http://code.google.com/p/ibaguice/source/browse/trunk/src/test/java/com/ibaguice/SimpleTestCase.java

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