Examples of org.hibernate.engine.spi.EntityKey

org.hibernate.engine.spi.EntityKey
Uniquely identifies of an entity instance in a particular Session by identifier. Note that it's only safe to be used within the scope of a Session: it doesn't consider for example the tenantId as part of the equality definition.
Information used to determine uniqueness consists of the entity-name and the identifier value (see {@link #equals}).
Performance considerations: lots of instances of this type are created at runtime. Make sure each one is as small as possible by storing just the essential needed. @author Gavin King @author Sanne Grinovero

        LOG.tracev( "No existing row, replicating new instance {0}",
            MessageHelper.infoString( persister, id, source.getFactory() ) );
      }


      final boolean regenerate = persister.isIdentifierAssignedByInsert(); // prefer re-generation of identity!
      final EntityKey key = regenerate ? null : source.generateEntityKey( id, persister );


      performSaveOrReplicate(
          entity,
          key,
          persister,

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        throw new StaleObjectStateException( persister.getEntityName(), id );
      }
      return snapshot;
    }
    // TODO: optimize away this lookup for entities w/o unsaved-value="undefined"
    final EntityKey entityKey = session.generateEntityKey( id, persister );
    return session.getPersistenceContext().getCachedDatabaseSnapshot( entityKey );
  }

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    if ( LOG.isTraceEnabled() ) {
      LOG.tracev( "Saving {0}", MessageHelper.infoString( persister, id, source.getFactory() ) );
    }


    final EntityKey key;
    if ( !useIdentityColumn ) {
      key = source.generateEntityKey( id, persister );
      Object old = source.getPersistenceContext().getEntity( key );
      if ( old != null ) {
        if ( source.getPersistenceContext().getEntry( old ).getStatus() == Status.DELETED ) {

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    if ( isImpliedOptimisticLocking ) {
      // need to treat this as if it where optimistic-lock="all" (dirty does *not* make sense);
      // first we need to locate the "loaded" state
      //
      // Note, it potentially could be a proxy, so doAfterTransactionCompletion the location the safe way...
      final EntityKey key = session.generateEntityKey( id, this );
      Object entity = session.getPersistenceContext().getEntity( key );
      if ( entity != null ) {
        EntityEntry entry = session.getPersistenceContext().getEntry( entity );
        loadedState = entry.getLoadedState();
      }

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        try {
          //if there is no resulting row, return null
          if ( !rs.next() ) {
            return null;
          }
          final EntityKey key = session.generateEntityKey( id, this );
          Object owner = session.getPersistenceContext().getEntity( key );
          for ( int i = 0; i < naturalIdPropertyCount; i++ ) {
            snapshot[i] = extractionTypes[i].hydrate( rs, getPropertyAliases( "", naturalIdPropertyIndexes[i] ), session, null );
            if (extractionTypes[i].isEntityType()) {
              snapshot[i] = extractionTypes[i].resolve(snapshot[i], session, owner);

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        throw new TransientObjectException(
            "the detached instance passed to delete() had a null identifier"
        );
      }


      final EntityKey key = source.generateEntityKey( id, persister );


      persistenceContext.checkUniqueness( key, entity );


      new OnUpdateVisitor( source, id, entity ).process( entity, persister );

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        propTypes
    );


    // before any callbacks, etc, so subdeletions see that this deletion happened first
    persistenceContext.setEntryStatus( entityEntry, Status.DELETED );
    final EntityKey key = session.generateEntityKey( entityEntry.getId(), persister );


    cascadeBeforeDelete( session, persister, entity, entityEntry, transientEntities );


    new ForeignKeys.Nullifier( entity, true, false, session )
        .nullifyTransientReferences( entityEntry.getDeletedState(), propTypes );

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      throw new TypeMismatchException(
          "Provided id of the wrong type for class " + persister.getEntityName() + ". Expected: " + idClass + ", got " + event.getEntityId().getClass()
      );
    }


    final  EntityKey keyToLoad = source.generateEntityKey( event.getEntityId(), persister );


    try {
      if ( loadType.isNakedEntityReturned() ) {
        //do not return a proxy!
        //(this option indicates we are initializing a proxy)

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      LoadEvent event,
      LoadEventListener.LoadType options,
      EntityPersister dependentPersister,
      EmbeddedComponentType dependentIdType,
      EntityPersister parentPersister) {
    final EntityKey parentEntityKey = event.getSession().generateEntityKey( event.getEntityId(), parentPersister );
    final Object parent = doLoad( event, parentPersister, parentEntityKey, options );


    final Serializable dependent = (Serializable) dependentIdType.instantiate( parent, event.getSession() );
    dependentIdType.setPropertyValues( dependent, new Object[] {parent}, dependentPersister.getEntityMode() );
    final EntityKey dependentEntityKey = event.getSession().generateEntityKey( dependent, dependentPersister );
    event.setEntityId( dependent );


    event.setResult( doLoad( event, dependentPersister, dependentEntityKey, options ) );
  }

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          ? session.instantiate( subclassPersister, entityId )
          : optionalObject;
    }


    // make it circular-reference safe
    final EntityKey entityKey = session.generateEntityKey( entityId, subclassPersister );
    TwoPhaseLoad.addUninitializedCachedEntity(
        entityKey,
        entity,
        subclassPersister,
        LockMode.NONE,

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org.hibernate.AssertionFailure

org.hibernate.engine.internal.Collections

org.hibernate.engine.internal.StatefulPersistenceContext

org.hibernate.event.internal.AbstractReassociateEventListener

org.hibernate.event.internal.AbstractSaveEventListener

org.hibernate.event.internal.DefaultDeleteEventListener

org.hibernate.event.internal.DefaultEvictEventListener

org.hibernate.event.internal.DefaultFlushEntityEventListener

org.hibernate.event.internal.DefaultLoadEventListener

org.hibernate.event.internal.DefaultMergeEventListener

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