Re: Setting ObjectCacheDescriptor programatically

Hi Steve,

this seems to be a bug in the #toXML() method of 
JdbcConnectionDescriptor (the cascade call to ObjectCacheDescriptor is 
missing). I will fix this. But this doesn't affect the 
stability/usability of OJB.

To check the usage of your specified ObjectCacheDescriptor set the log 
level of class CacheDistributor to DEBUG/INFO (if you use OJB's own 
simple Logger change entry in OJB-logging.properties).

Then you should get something like:

[org.apache.ojb.broker.cache.CacheDistributor] INFO:
<====
Setup new object cache instance on CONNECTION LEVEL for
PersistenceBroker: org.apache.ojb.broker.core.PersistenceBrokerImpl@13c0b53
descriptorBasedCache: false
Connection jcdAlias: default
Calling class: class org.apache.ojb.broker.StoredProcedureTest$Customer
ObjectCache: 
org.apache.ojb.broker.metadata.ObjectCacheDescriptor@1abcc03[ObjectCache=class 
org.apache.ojb.broker.cache.ObjectCacheTwoLevelImpl,Properties={autoSync=true, 
cacheExcludes=, 
copyStrategy=org.apache.ojb.broker.cache.ObjectCacheTwoLevelImpl$CopyStrategyImpl, 
cachingKeyType=0, forceProxies=false, timeout=900, 
applicationCache=org.apache.ojb.broker.cache.ObjectCacheDefaultImpl, 
useSoftReferences=true}]
====>

Please let me know if this doesn't work.

regards,
Armin

Steve Vangasse wrote:
> I'm having trouble setting up a JdbcConnectionDescriptor 
> programatically. I'm adding a ConnectionPoolDescriptor, 
> SequenceDescriptor and an ObjectCacheDescriptor to the 
> JdbcConnectionDescriptor but the ObjectCacheDescriptor doesn't appear 
> when I call JdbcConnectionDescriptor.toXML() and doesn't have any effect 
> when the application is running. Here is my code:
> 
> ********
> 
> JdbcConnectionDescriptor jcd = new JdbcConnectionDescriptor();
> jcd.setJcdAlias("mainConnection");
> jcd.setDatasourceName("java:comp/env/jdbc/mainConnection");
> jcd.setDbms("MySQL");
> jcd.setJdbcLevel(3.0);
> jcd.setBatchMode(false);
> jcd.setUseAutoCommit(1);
> jcd.setIgnoreAutoCommitExceptions(false);
> 
> ObjectCacheDescriptor ocd = new 
> ObjectCacheDescriptor(ObjectCacheTwoLevelImpl.class);
> ocd.addAttribute("applicationCache", 
> "org.apache.ojb.broker.cache.ObjectCacheDefaultImpl");
> ocd.addAttribute("copyStrategy", 
> "org.apache.ojb.broker.cache.ObjectCacheTwoLevelImpl$CopyStrategyImpl");
> ocd.addAttribute("timeout", "900");
> ocd.addAttribute("autoSync", "true");
> ocd.addAttribute("cachingKeyType", "1");
> ocd.addAttribute("useSoftReferences", "true");
> log.debug(ocd.toXML());
> 
> ConnectionPoolDescriptor cpd = new ConnectionPoolDescriptor();
> cpd.setLogAbandoned(true);
> cpd.setValidationQuery("SELECT 1");
> 
> jcd.setConnectionPoolDescriptor(cpd);
> jcd.setObjectCacheDescriptor(ocd);
> jcd.setSequenceDescriptor(new SequenceDescriptor(jcd, 
> SequenceManagerNativeImpl.class));
> connectionRepository.addDescriptor(jcd);
> 
> log.debug(jcd.toXML());
> *********
> 
> I can't use an XML file for reasons I won't go into here. Can anyone see 
> what I might be doing wrong here? Has anyone else attempted to do this? 
> Any help would be much appreciated.
> 
> Thanks,
> 
> Steve Vangasse
> 
> Boardshop.co.uk - Board Sports Equipment and Clothing for the UK and Europe
> www.boardshop.co.uk
> 0870 0600 688
> 
> 
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