Examples of org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy

org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy
Contract for managing transactional and concurrent access to cached naturalId data. The expected call sequences related to various operations are:
- INSERTS : {@link #insert} -> {@link #afterInsert}
- UPDATES : {@link #lockItem} -> {@link #remove} -> {@link #update} -> {@link #afterUpdate}
- DELETES : {@link #lockItem} -> {@link #remove} -> {@link #unlockItem}
- LOADS : {@link @putFromLoad}
Note the special case of UPDATES above. Because the cache key itself has changed here we need to remove the old entry as well as
There is another usage pattern that is used to invalidate entries after performing "bulk" HQL/SQL operations: {@link #lockRegion} -> {@link #removeAll} -> {@link #unlockRegion}
IMPORTANT : NaturalIds are not versioned so {@code null} will always be passed to the version parameter to:
- {@link #putFromLoad(Object,Object,long,Object)}
- {@link #putFromLoad(Object,Object,long,Object,boolean)}
- {@link #lockItem(Object,Object)}
@author Gavin King @author Steve Ebersole @author Eric Dalquist

          entityAccessStrategies.put( cacheRegionName, accessStrategy );
          cacheAccess.addCacheRegion( cacheRegionName, entityRegion );
        }
      }


      NaturalIdRegionAccessStrategy naturalIdAccessStrategy = null;
      if ( model.hasNaturalId() && model.getNaturalIdCacheRegionName() != null ) {
        final String naturalIdCacheRegionName = cacheRegionPrefix + model.getNaturalIdCacheRegionName();
        naturalIdAccessStrategy = ( NaturalIdRegionAccessStrategy ) entityAccessStrategies.get( naturalIdCacheRegionName );


        if ( naturalIdAccessStrategy == null && settings.isSecondLevelCacheEnabled() ) {

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        event.getLockOptions(),
        event.getSession()
    );
    
    if ( stats ) {
      final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = event.getEntityPersister().getNaturalIdCacheAccessStrategy();
      final String regionName = naturalIdCacheAccessStrategy == null ? null : naturalIdCacheAccessStrategy.getRegion().getName();
      
      factory.getStatisticsImplementor().naturalIdQueryExecuted(
          regionName,
          System.currentTimeMillis() - startTime );
    }

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        sessionCachedNaturalIdValues = cachedNaturalId.getValues();
      }
    }


    if ( persister.hasNaturalIdCache() ) {
      final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = persister
          .getNaturalIdCacheAccessStrategy();
      final NaturalIdCacheKey naturalIdCacheKey = new NaturalIdCacheKey( naturalIdValues, persister, session() );
      naturalIdCacheAccessStrategy.evict( naturalIdCacheKey );


      if ( sessionCachedNaturalIdValues != null
          && !Arrays.equals( sessionCachedNaturalIdValues, naturalIdValues ) ) {
        final NaturalIdCacheKey sessionNaturalIdCacheKey = new NaturalIdCacheKey( sessionCachedNaturalIdValues, persister, session() );
        naturalIdCacheAccessStrategy.evict( sessionNaturalIdCacheKey );
      }
    }


    return sessionCachedNaturalIdValues;
  }

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    }


    // Try resolution from second-level cache
    final NaturalIdCacheKey naturalIdCacheKey = new NaturalIdCacheKey( naturalIdValues, persister, session() );


    final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = persister.getNaturalIdCacheAccessStrategy();
    pk = CacheHelper.fromSharedCache( session(), naturalIdCacheKey, naturalIdCacheAccessStrategy );


    // Found in second-level cache, store in session cache
    final SessionFactoryImplementor factory = session().getFactory();
    if ( pk != null ) {
      if ( factory.getStatistics().isStatisticsEnabled() ) {
        factory.getStatisticsImplementor().naturalIdCacheHit(
            naturalIdCacheAccessStrategy.getRegion().getName()
        );
      }


      if ( LOG.isTraceEnabled() ) {
        // protected to avoid Arrays.toString call unless needed
        LOG.tracef(
            "Found natural key [%s] -> primary key [%s] xref in second-level cache for %s",
            Arrays.toString( naturalIdValues ),
            pk,
            persister.getRootEntityName()
        );
      }


      if ( entityNaturalIdResolutionCache == null ) {
        entityNaturalIdResolutionCache = new NaturalIdResolutionCache( persister );
        NaturalIdResolutionCache existingCache = naturalIdResolutionCacheMap.putIfAbsent( persister, entityNaturalIdResolutionCache );
        if ( existingCache != null ) {
          entityNaturalIdResolutionCache = existingCache;
        }
      }


      entityNaturalIdResolutionCache.pkToNaturalIdMap.put( pk, cachedNaturalId );
      entityNaturalIdResolutionCache.naturalIdToPkMap.put( cachedNaturalId, pk );
    }
    else if ( factory.getStatistics().isStatisticsEnabled() ) {
      factory.getStatisticsImplementor().naturalIdCacheMiss( naturalIdCacheAccessStrategy.getRegion().getName() );
    }


    return pk;
  }

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          entityAccessStrategies.put( cacheRegionName, accessStrategy );
          allCacheRegions.put( cacheRegionName, entityRegion );
        }
      }
      
      NaturalIdRegionAccessStrategy naturalIdAccessStrategy = null;
      if ( model.hasNaturalId() && model.getNaturalIdCacheRegionName() != null ) {
        final String naturalIdCacheRegionName = cacheRegionPrefix + model.getNaturalIdCacheRegionName();
        naturalIdAccessStrategy = ( NaturalIdRegionAccessStrategy ) entityAccessStrategies.get( naturalIdCacheRegionName );
        
        if ( naturalIdAccessStrategy == null && settings.isSecondLevelCacheEnabled() ) {

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        sessionCachedNaturalIdValues = cachedNaturalId.getValues();
      }
    }


    if ( persister.hasNaturalIdCache() ) {
      final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = persister
          .getNaturalIdCacheAccessStrategy();
      final NaturalIdCacheKey naturalIdCacheKey = new NaturalIdCacheKey( naturalIdValues, persister, session() );
      naturalIdCacheAccessStrategy.evict( naturalIdCacheKey );


      if ( sessionCachedNaturalIdValues != null
          && !Arrays.equals( sessionCachedNaturalIdValues, naturalIdValues ) ) {
        final NaturalIdCacheKey sessionNaturalIdCacheKey = new NaturalIdCacheKey( sessionCachedNaturalIdValues, persister, session() );
        naturalIdCacheAccessStrategy.evict( sessionNaturalIdCacheKey );
      }
    }


    return sessionCachedNaturalIdValues;
  }

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    }


    // Try resolution from second-level cache
    final NaturalIdCacheKey naturalIdCacheKey = new NaturalIdCacheKey( naturalIdValues, persister, session() );


    final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = persister.getNaturalIdCacheAccessStrategy();
    pk = CacheHelper.fromSharedCache( session(), naturalIdCacheKey, naturalIdCacheAccessStrategy );


    // Found in second-level cache, store in session cache
    final SessionFactoryImplementor factory = session().getFactory();
    if ( pk != null ) {
      if ( factory.getStatistics().isStatisticsEnabled() ) {
        factory.getStatisticsImplementor().naturalIdCacheHit(
            naturalIdCacheAccessStrategy.getRegion().getName()
        );
      }


      if ( LOG.isTraceEnabled() ) {
        // protected to avoid Arrays.toString call unless needed
        LOG.tracef(
            "Found natural key [%s] -> primary key [%s] xref in second-level cache for %s",
            Arrays.toString( naturalIdValues ),
            pk,
            persister.getRootEntityName()
        );
      }


      if ( entityNaturalIdResolutionCache == null ) {
        entityNaturalIdResolutionCache = new NaturalIdResolutionCache( persister );
        naturalIdResolutionCacheMap.put( persister, entityNaturalIdResolutionCache );
      }


      entityNaturalIdResolutionCache.pkToNaturalIdMap.put( pk, cachedNaturalId );
      entityNaturalIdResolutionCache.naturalIdToPkMap.put( cachedNaturalId, pk );
    }
    else if ( factory.getStatistics().isStatisticsEnabled() ) {
      factory.getStatisticsImplementor().naturalIdCacheMiss( naturalIdCacheAccessStrategy.getRegion().getName() );
    }


    return pk;
  }

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        event.getLockOptions(),
        event.getSession()
    );
    
    if ( stats ) {
      final NaturalIdRegionAccessStrategy naturalIdCacheAccessStrategy = event.getEntityPersister().getNaturalIdCacheAccessStrategy();
      final String regionName = naturalIdCacheAccessStrategy == null ? null : naturalIdCacheAccessStrategy.getRegion().getName();
      
      factory.getStatisticsImplementor().naturalIdQueryExecuted(
          regionName,
          System.currentTimeMillis() - startTime );
    }

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          entityAccessStrategies.put( cacheRegionName, accessStrategy );
          cacheAccess.addCacheRegion( cacheRegionName, entityRegion );
        }
      }
      
      NaturalIdRegionAccessStrategy naturalIdAccessStrategy = null;
      if ( model.hasNaturalId() && model.getNaturalIdCacheRegionName() != null ) {
        final String naturalIdCacheRegionName = cacheRegionPrefix + model.getNaturalIdCacheRegionName();
        naturalIdAccessStrategy = ( NaturalIdRegionAccessStrategy ) entityAccessStrategies.get( naturalIdCacheRegionName );
        
        if ( naturalIdAccessStrategy == null && settings.isSecondLevelCacheEnabled() ) {

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          entityAccessStrategies.put( cacheRegionName, accessStrategy );
          cacheAccess.addCacheRegion( cacheRegionName, entityRegion );
        }
      }
      
      NaturalIdRegionAccessStrategy naturalIdAccessStrategy = null;
      if ( model.hasNaturalId() && model.getNaturalIdCacheRegionName() != null ) {
        final String naturalIdCacheRegionName = cacheRegionPrefix + model.getNaturalIdCacheRegionName();
        naturalIdAccessStrategy = ( NaturalIdRegionAccessStrategy ) entityAccessStrategies.get( naturalIdCacheRegionName );
        
        if ( naturalIdAccessStrategy == null && settings.isSecondLevelCacheEnabled() ) {

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Related Classes of org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy

org.hibernate.engine.internal.NaturalIdXrefDelegate

org.hibernate.engine.internal.StatefulPersistenceContext

org.hibernate.event.internal.DefaultResolveNaturalIdEventListener

org.hibernate.internal.SessionFactoryImpl

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