| public static CacheConcurrencyStrategy | createCache(java.lang.String concurrencyStrategy, java.lang.String regionName, boolean mutable, org.hibernate.cfg.Settings settings, java.util.Properties properties)
if ( concurrencyStrategy==null || !settings.isSecondLevelCacheEnabled() ) return null; //no cache
String prefix = settings.getCacheRegionPrefix();
if ( prefix!=null ) regionName = prefix + '." + regionName;
if ( log.isDebugEnabled() ) log.debug("instantiating cache region: " + regionName + " usage strategy: " + concurrencyStrategy);
final CacheConcurrencyStrategy ccs;
if ( concurrencyStrategy.equals(READ_ONLY) ) {
if (mutable) log.warn( "read-only cache configured for mutable class: " + regionName );
ccs = new ReadOnlyCache();
}
else if ( concurrencyStrategy.equals(READ_WRITE) ) {
ccs = new ReadWriteCache();
}
else if ( concurrencyStrategy.equals(NONSTRICT_READ_WRITE) ) {
ccs = new NonstrictReadWriteCache();
}
else if ( concurrencyStrategy.equals(TRANSACTIONAL) ) {
ccs = new TransactionalCache();
}
else {
throw new MappingException("cache usage attribute should be read-write, read-only, nonstrict-read-write or transactional");
}
final Cache impl;
try {
impl = settings.getCacheProvider().buildCache(regionName, properties);
}
catch (CacheException e) {
throw new HibernateException( "Could not instantiate cache implementation", e );
}
ccs.setCache(impl);
return ccs;
|
