/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.hibernate;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.hibernate.instance.HazelcastInstanceFactory;
import com.hazelcast.hibernate.instance.IHazelcastInstanceLoader;
import com.hazelcast.hibernate.region.HazelcastNaturalIdRegion;
import com.hazelcast.hibernate.region.HazelcastQueryResultsRegion;
import com.hazelcast.logging.ILogger;
import com.hazelcast.logging.Logger;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.CacheDataDescription;
import org.hibernate.cache.spi.NaturalIdRegion;
import org.hibernate.cache.spi.QueryResultsRegion;
import org.hibernate.cache.spi.RegionFactory;
import org.hibernate.cache.spi.access.AccessType;
import org.hibernate.cfg.Settings;
import java.util.Properties;
/**
* Abstract superclass of Hazelcast based {@link org.hibernate.cache.RegionFactory} implementations
*/
public abstract class AbstractHazelcastCacheRegionFactory implements RegionFactory {
protected HazelcastInstance instance;
private final ILogger log = Logger.getLogger(getClass());
private IHazelcastInstanceLoader instanceLoader;
public AbstractHazelcastCacheRegionFactory() {
}
public AbstractHazelcastCacheRegionFactory(final Properties properties) {
this();
}
public AbstractHazelcastCacheRegionFactory(final HazelcastInstance instance) {
this.instance = instance;
}
public final QueryResultsRegion buildQueryResultsRegion(final String regionName, final Properties properties)
throws CacheException {
return new HazelcastQueryResultsRegion(instance, regionName, properties);
}
public NaturalIdRegion buildNaturalIdRegion(final String regionName, final Properties properties
, final CacheDataDescription metadata)
throws CacheException {
return new HazelcastNaturalIdRegion(instance, regionName, properties, metadata);
}
/**
* @return true - for a large cluster, unnecessary puts will most likely slow things down.
*/
public boolean isMinimalPutsEnabledByDefault() {
return true;
}
public long nextTimestamp() {
return HazelcastTimestamper.nextTimestamp(instance);
}
public void start(final Settings settings, final Properties properties) throws CacheException {
log.info("Starting up " + getClass().getSimpleName());
if (instance == null || !instance.getLifecycleService().isRunning()) {
instanceLoader = HazelcastInstanceFactory.createInstanceLoader(properties);
instance = instanceLoader.loadInstance();
}
}
public void stop() {
if (instanceLoader != null) {
log.info("Shutting down " + getClass().getSimpleName());
instanceLoader.unloadInstance();
instance = null;
instanceLoader = null;
}
}
public HazelcastInstance getHazelcastInstance() {
return instance;
}
public AccessType getDefaultAccessType() {
return AccessType.READ_WRITE;
}
}