Ben, thanks for your replies.
I managed to work around my problem with the overloaded method by not preparing the
class that was causing the problem (it's just a value in a Map, and I'll just pretend
it's immutable whilst I'm testing!).
So, I did manage to get my CounterLicense put into the cache, and it gets replicated
OK, but changes the a Map object my class holds don't seem to be getting replicated -
when I call a buisiness method on the CounterLicense class it does a put on the Map.
Whilst the in-memory representation of Map on the server it was created contains the
additional entry, I don't see it when I "printDetails" on the TreeCacheAop MBean on
either of the servers I have clustered.
In the tutorial it mentions that you have to get the collection from the cache in
order to get the dynamic proxy that has replaced the Map. So when I'm putting my
CounterLicense into the cache I tried overriding it's reference to the Map with what I
get from the cache:
| treeCache.putObject(new Fqn("/licenses/lic123"), license);
| license.setPropertyMap((Map)treeCache.getObject(new
Fqn("/licenses/lic123/properties")));
|
but this causes a (not very useful) stack overflow:
| ...
| at javassist.ClassPool.toClass(ClassPool.java:713)
| at org.jboss.aop.deployment.JBossClassPool.toClass(JBossClassPool.java:50)
| at javassist.ClassPool.toClass(ClassPool.java:713)
| at org.jboss.aop.deployment.JBossClassPool.toClass(JBossClassPool.java:50)
|
| at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:207)
| at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:316)
| at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:149)
|
So I'm assuming that wasn't the right thing to do!
However, looking at printDetails in the JMX console, I'm not sure whether it's a proxy
that's bound into the cache in place of the Map:
/licenses
| /lic123
| jboss:internal:class: class com.ingenta.ics.license.CounterLicense
| AOPInstance: [EMAIL PROTECTED]
|
| ... (other fields)...
|
| /properties
| jboss:internal:class: class java.util.HashMap
|
My environment is JBoss-4.0.0 using the included jboss-aop and jboss-cache versions,
but with an upgraded version of javassist.jar.
Is this something that would be addressed by the upcoming Collection enhancements in
the 1.2 release?
Regards,
-Andrew
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