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https://issues.apache.org/jira/browse/IGNITE-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15540398#comment-15540398
]
Anil Agrawal commented on IGNITE-3603:
--------------------------------------
As a workaround, extend class HibernateRegionFactory and override function
buildEntityRegion() as below
public class HibernateRegionFactoryForIgnite extends HibernateRegionFactory {
private static final long serialVersionUID = 530290669748711933L;
public static Logger logger =
Logger.getLogger(HibernateRegionFactoryForIgnite.class);
private IgniteKernal ignite;
private IgniteInternalCache<Object, Object> dfltCache;
private final Map<String, String> regionCaches = new HashMap<>();
@Override
public void start(SessionFactoryOptions settings, Properties
properties) throws CacheException {
start(new Settings(settings), properties);
initializeVariables(properties);
}
public void initializeVariables(Properties props) {
ignite = (IgniteKernal) Ignition.ignite("hibernate-grid");
String dfltCacheName =
props.getProperty(DFLT_CACHE_NAME_PROPERTY);
for (Map.Entry<Object, Object> prop : props.entrySet()) {
String key = prop.getKey().toString();
if (key.startsWith(REGION_CACHE_PROPERTY)) {
String regionName =
key.substring(REGION_CACHE_PROPERTY.length());
String cacheName = prop.getValue().toString();
regionCaches.put(regionName, cacheName);
}
}
if (dfltCacheName != null) {
dfltCache = ((IgniteKernal)
ignite).getCache(dfltCacheName);
}
}
private IgniteInternalCache<Object, Object> regionCache(String
regionName) throws CacheException {
String cacheName = regionCaches.get(regionName);
if (cacheName == null) {
if (dfltCache != null)
return dfltCache;
cacheName = regionName;
}
IgniteInternalCache<Object, Object> cache = ((IgniteKernal)
ignite).getCache(cacheName);
if (cache == null)
throw new CacheException("Cache '" + cacheName + "' for
region '" + regionName + "' is not configured.");
return cache;
}
@Override
public EntityRegion buildEntityRegion(String regionName, Properties
props, CacheDataDescription metadata)
throws CacheException {
EntityRegion entityRegion = null;
try {
entityRegion = new HibernateEntityRegion(this,
regionName, ignite, regionCache(regionName),
metadata);
} catch (Exception e) {
}
if (entityRegion == null) {
ignite.createCache(cacheConfiguration(regionName));
try {
entityRegion = new HibernateEntityRegion(this,
regionName, ignite, regionCache(regionName),
metadata);
} catch (Exception e) {
logger.debug("exception occurred");
}
}
return entityRegion;
}
@Override
public CollectionRegion buildCollectionRegion(String regionName,
Properties props, CacheDataDescription metadata)
throws CacheException {
CollectionRegion collectionRegion = null;
try {
collectionRegion = new HibernateCollectionRegion(this,
regionName, ignite, regionCache(regionName),
metadata);
} catch (Exception e) {
}
if (collectionRegion == null) {
ignite.createCache(cacheConfiguration(regionName));
try {
collectionRegion = new
HibernateCollectionRegion(this, regionName, ignite,
regionCache(regionName),
metadata);
} catch (Exception e) {
logger.debug("exception occurred");
}
}
return collectionRegion;
}
private CacheConfiguration<Object, Object> cacheConfiguration(String
cacheName) {
CacheConfiguration<Object, Object> cfg = new
CacheConfiguration<Object, Object>();
cfg.setName(cacheName);
cfg.setCacheMode(CacheMode.PARTITIONED);
cfg.setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL);
cfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
return cfg;
}
}
and use class HibernateRegionFactoryForIgnite as value of key
hibernate.cache.region.factory_class in hibernate configuration properties
> Hibernate L2 cache should be able to create caches automatically
> ----------------------------------------------------------------
>
> Key: IGNITE-3603
> URL: https://issues.apache.org/jira/browse/IGNITE-3603
> Project: Ignite
> Issue Type: Improvement
> Components: Hibernate L2 cache
> Affects Versions: 1.6
> Reporter: Valentin Kulichenko
> Fix For: 1.8
>
>
> Hibernate L2 cache is typically configured using annotations, like this:
> {code}
> @Cache(usage = CacheConcurrencyStrategy.READ_ONLY, region = "userType")
> {code}
> Currently we require user to explicitly configure {{userType}} cache, but we
> can avoid this and create caches automatically.
> Atomicity mode should be chosen based on concurrency strategy, all other
> settings should be default.
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