// $Id: JndiBoundTreeCacheProvider.java 6079 2005-03-16 06:01:18Z oneovthafew $
package org.hibernate.cache;
import java.util.Properties;
import javax.transaction.TransactionManager;
import org.hibernate.transaction.TransactionManagerLookup;
import org.hibernate.transaction.TransactionManagerLookupFactory;
/**
* Support for JBossCache (TreeCache), where the cache instance is available
* via JNDI lookup.
*
* @author Steve Ebersole
*/
public class JndiBoundTreeCacheProvider extends AbstractJndiBoundCacheProvider {
private TransactionManager transactionManager;
/**
* Construct a Cache representing the "region" within in the underlying cache
* provider.
*
* @param regionName the name of the cache region
* @param properties configuration settings
*
* @throws CacheException
*/
public Cache buildCache(String regionName, Properties properties) throws CacheException {
return new TreeCache( getTreeCacheInstance(), regionName, transactionManager );
}
public void prepare(Properties properties) throws CacheException {
TransactionManagerLookup transactionManagerLookup = TransactionManagerLookupFactory.getTransactionManagerLookup(properties);
if (transactionManagerLookup!=null) {
transactionManager = transactionManagerLookup.getTransactionManager(properties);
}
}
/**
* Generate a timestamp
*/
public long nextTimestamp() {
return System.currentTimeMillis() / 100;
}
/**
* By default, should minimal-puts mode be enabled when using this cache.
* <p/>
* Since TreeCache is a clusterable cache and we are only getting a
* reference the instance from JNDI, safest to assume a clustered
* setup and return true here.
*
* @return True.
*/
public boolean isMinimalPutsEnabledByDefault() {
return true;
}
public org.jboss.cache.TreeCache getTreeCacheInstance() {
return ( org.jboss.cache.TreeCache ) super.getCache();
}
}
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