/** * Copyright (c) 2013-2020 Nikita Koksharov * * 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 org.redisson.hibernate.strategy; import org.hibernate.cache.CacheException; import org.hibernate.cache.spi.GeneralDataRegion; import org.hibernate.cache.spi.NaturalIdRegion; import org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy; import org.hibernate.cache.spi.access.SoftLock; import org.hibernate.cfg.Settings; /** * * @author Nikita Koksharov * */ public class ReadOnlyNaturalIdRegionAccessStrategy extends BaseRegionAccessStrategy implements NaturalIdRegionAccessStrategy { public ReadOnlyNaturalIdRegionAccessStrategy(Settings settings, GeneralDataRegion region) { super(settings, region); } @Override public Object get(Object key, long txTimestamp) throws CacheException { return region.get(key); } @Override public boolean putFromLoad(Object key, Object value, long txTimestamp, Object version, boolean minimalPutOverride) throws CacheException { if (minimalPutOverride && region.contains(key)) { return false; } region.put(key, value); return true; } @Override public SoftLock lockItem(Object key, Object version) throws CacheException { return null; } @Override public void unlockItem(Object key, SoftLock lock) throws CacheException { evict(key); } @Override public NaturalIdRegion getRegion() { return (NaturalIdRegion) region; } @Override public boolean insert(Object key, Object value) throws CacheException { return false; } @Override public boolean afterInsert(Object key, Object value) throws CacheException { region.put(key, value); return true; } @Override public boolean update(Object key, Object value) throws CacheException { throw new UnsupportedOperationException("Unable to update read-only object"); } @Override public boolean afterUpdate(Object key, Object value, SoftLock lock) throws CacheException { throw new UnsupportedOperationException("Unable to update read-only object"); } }