Package org.hibernate.engine

Examples of org.hibernate.engine.PersistenceContext

590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
   * @return The collection
   */
  public Object getCollection(Serializable key, SessionImplementor session, Object owner) {

    CollectionPersister persister = getPersister( session );
    final PersistenceContext persistenceContext = session.getPersistenceContext();
    final EntityMode entityMode = session.getEntityMode();

    if (entityMode==EntityMode.DOM4J && !isEmbeddedInXML) {
      return UNFETCHED_COLLECTION;
    }

    // check if collection is currently being loaded
    PersistentCollection collection = persistenceContext.getLoadContexts().locateLoadingCollection( persister, key );
    if ( collection == null ) {
      // check if it is already completely loaded, but unowned
      collection = persistenceContext.useUnownedCollection( new CollectionKey(persister, key, entityMode) );
      if ( collection == null ) {
        // create a new collection wrapper, to be initialized later
        collection = instantiate( session, persister, key );
        collection.setOwner( owner );

        persistenceContext.addUninitializedCollection( persister, collection, key );

        // some collections are not lazy:
        if ( initializeImmediately( entityMode ) ) {
          session.initializeCollection( collection, false );
        }
        else if ( !persister.isLazy() ) {
          persistenceContext.addNonLazyCollection( collection );
        }
 
        if ( hasHolder( entityMode ) ) {
          session.getPersistenceContext().addCollectionHolder( collection );
        }
View Full Code Here
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
    if ( !isSubselectLoadable() ) {
      return null;
    }
   
    final PersistenceContext persistenceContext = session.getPersistenceContext();
   
    SubselectFetch subselect = persistenceContext.getBatchFetchQueue()
      .getSubselect( new EntityKey( key, getOwnerEntityPersister(), session.getEntityMode() ) );
   
    if (subselect == null) {
      return null;
    }
    else {
     
      // Take care of any entities that might have
      // been evicted! 
      Iterator iter = subselect.getResult().iterator();
      while ( iter.hasNext() ) {
        if ( !persistenceContext.containsEntity( (EntityKey) iter.next() ) ) {
          iter.remove();
        }
      } 
     
      // Run a subquery loader
View Full Code Here
610
611
612
613
614
615
616
617
618
619
620
621
        getIdentifierOrUniqueKeyType( factory ),
        session.getEntityMode(),
        session.getFactory()
    );

    final PersistenceContext persistenceContext = session.getPersistenceContext();
    Object result = persistenceContext.getEntity( euk );
    if ( result == null ) {
      result = persister.loadByUniqueKey( uniqueKeyPropertyName, key, session );
    }
    return result == null ? null : persistenceContext.proxyFor( result );
  }
View Full Code Here
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
    log.trace("flushing session");
   
    EventSource session = event.getSession();
   
    final PersistenceContext persistenceContext = session.getPersistenceContext();
    session.getInterceptor().preFlush( new LazyIterator( persistenceContext.getEntitiesByKey() ) );

    prepareEntityFlushes(session);
    // we could move this inside if we wanted to
    // tolerate collection initializations during
    // collection dirty checking:
    prepareCollectionFlushes(session);
    // now, any collections that are initialized
    // inside this block do not get updated - they
    // are ignored until the next flush
       
    persistenceContext.setFlushing(true);
    try {
      flushEntities(event);
      flushCollections(session);
    }
    finally {
      persistenceContext.setFlushing(false);
    }

    //some statistics
    if ( log.isDebugEnabled() ) {
      log.debug( "Flushed: " +
          session.getActionQueue().numberOfInsertions() + " insertions, " +
          session.getActionQueue().numberOfUpdates() + " updates, " +
          session.getActionQueue().numberOfDeletions() + " deletions to " +
          persistenceContext.getEntityEntries().size() + " objects"
        );
      log.debug( "Flushed: " +
          session.getActionQueue().numberOfCollectionCreations() + " (re)creations, " +
          session.getActionQueue().numberOfCollectionUpdates() + " updates, " +
          session.getActionQueue().numberOfCollectionRemovals() + " removals to " +
          persistenceContext.getCollectionEntries().size() + " collections"
        );
      new Printer( session.getFactory() ).toString(
          persistenceContext.getEntitiesByKey().values().iterator(),
          session.getEntityMode()
        );
    }
  }
View Full Code Here
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
   */
  protected void postFlush(SessionImplementor session) throws HibernateException {

    log.trace( "post flush" );

    final PersistenceContext persistenceContext = session.getPersistenceContext();
    persistenceContext.getCollectionsByKey().clear();
    persistenceContext.getBatchFetchQueue()
        .clearSubselects(); //the database has changed now, so the subselect results need to be invalidated

    Iterator iter = persistenceContext.getCollectionEntries().entrySet().iterator();
    while ( iter.hasNext() ) {
      Map.Entry me = (Map.Entry) iter.next();
      CollectionEntry collectionEntry = (CollectionEntry) me.getValue();
      PersistentCollection persistentCollection = (PersistentCollection) me.getKey();
      collectionEntry.postFlush(persistentCollection);
      if ( collectionEntry.getLoadedPersister() == null ) {
        //if the collection is dereferenced, remove from the session cache
        //iter.remove(); //does not work, since the entrySet is not backed by the set
        persistenceContext.getCollectionEntries()
            .remove(persistentCollection);
      }
      else {
        //otherwise recreate the mapping between the collection and its key
        CollectionKey collectionKey = new CollectionKey(
            collectionEntry.getLoadedPersister(),
            collectionEntry.getLoadedKey(),
            session.getEntityMode()
          );
        persistenceContext.getCollectionsByKey()
            .put(collectionKey, persistentCollection);
      }
    }
   
    session.getInterceptor().postFlush( new LazyIterator( persistenceContext.getEntitiesByKey() ) );

  }
View Full Code Here
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
   * @throws HibernateException
   */
  public void onEvict(EvictEvent event) throws HibernateException {
    EventSource source = event.getSession();
    final Object object = event.getObject();
    final PersistenceContext persistenceContext = source.getPersistenceContext();

    if ( object instanceof HibernateProxy ) {
      LazyInitializer li = ( (HibernateProxy) object ).getHibernateLazyInitializer();
      Serializable id = li.getIdentifier();
      EntityPersister persister = source.getFactory().getEntityPersister( li.getEntityName() );
      if ( id == null ) {
        throw new IllegalArgumentException("null identifier");
      }
      EntityKey key = new EntityKey( id, persister, source.getEntityMode() );
      persistenceContext.removeProxy( key );
      if ( !li.isUninitialized() ) {
        final Object entity = persistenceContext.removeEntity(key);
        if ( entity != null ) {
          EntityEntry e = event.getSession().getPersistenceContext().removeEntry(entity);
          doEvict( entity, key, e.getPersister(), event.getSession() );
        }
      }
      li.setSession( null );
    }
    else {
      EntityEntry e = persistenceContext.removeEntry( object );
      if ( e != null ) {
        EntityKey key = new EntityKey( e.getId(), e.getPersister(), source.getEntityMode()  );
        persistenceContext.removeEntity( key );
        doEvict( object, key, e.getPersister(), source );
      }
     
    }
  }
View Full Code Here
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
      return null;
    }
    else {
      CollectionPersister persister = session.getFactory().getCollectionPersister( collectionType.getRole() );

      final PersistenceContext persistenceContext = session.getPersistenceContext();
      //TODO: move into collection type, so we can use polymorphism!
      if ( collectionType.hasHolder( session.getEntityMode() ) ) {
       
        if (collection==CollectionType.UNFETCHED_COLLECTION) return null;

        PersistentCollection ah = persistenceContext.getCollectionHolder(collection);
        if (ah==null) {
          ah = collectionType.wrap(session, collection);
          persistenceContext.addNewCollection( persister, ah );
          persistenceContext.addCollectionHolder(ah);
        }
        return null;
      }
      else {

        PersistentCollection persistentCollection = collectionType.wrap(session, collection);
        persistenceContext.addNewCollection( persister, persistentCollection );

        if ( log.isTraceEnabled() ) log.trace( "Wrapped collection in role: " + collectionType.getRole() );

        return persistentCollection; //Force a substitution!
View Full Code Here
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
      else {

        CollectionCacheEntry cacheEntry = (CollectionCacheEntry) persister.getCacheEntryStructure()
            .destructure(ce, factory);
     
        final PersistenceContext persistenceContext = source.getPersistenceContext();
        cacheEntry.assemble(
            collection,
            persister, 
            persistenceContext.getCollectionOwner(id, persister)
          );
        persistenceContext.getCollectionEntry(collection).postInitialize(collection);
        //addInitializedCollection(collection, persister, id);
        return true;
      }
     
    }
View Full Code Here
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
   */
  public void onDelete(DeleteEvent event, Set transientEntities) throws HibernateException {

    final EventSource source = event.getSession();

    final PersistenceContext persistenceContext = source.getPersistenceContext();
    Object entity = persistenceContext.unproxyAndReassociate( event.getObject() );

    EntityEntry entityEntry = persistenceContext.getEntry( entity );
    final EntityPersister persister;
    final Serializable id;
    final Object version;

    if ( entityEntry == null ) {
      log.trace( "entity was not persistent in delete processing" );

      persister = source.getEntityPersister( event.getEntityName(), entity );

      if ( ForeignKeys.isTransient( persister.getEntityName(), entity, null, source ) ) {
        deleteTransientEntity( source, entity, event.isCascadeDeleteEnabled(), persister, transientEntities );
        // EARLY EXIT!!!
        return;
      }
      else {
        performDetachedEntityDeletionCheck( event );
      }

      id = persister.getIdentifier( entity, source.getEntityMode() );

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

      EntityKey key = new EntityKey( id, persister, source.getEntityMode() );

      persistenceContext.checkUniqueness( key, entity );

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

      version = persister.getVersion( entity, source.getEntityMode() );

      entityEntry = persistenceContext.addEntity(
          entity,
          Status.MANAGED,
          persister.getPropertyValues( entity, source.getEntityMode() ),
          key,
          version,
View Full Code Here
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
          "deleting " +
              MessageHelper.infoString( persister, entityEntry.getId(), session.getFactory() )
      );
    }

    final PersistenceContext persistenceContext = session.getPersistenceContext();
    final Type[] propTypes = persister.getPropertyTypes();
    final Object version = entityEntry.getVersion();

    final Object[] currentState;
    if ( entityEntry.getLoadedState() == null ) { //ie. the entity came in from update()
      currentState = persister.getPropertyValues( entity, session.getEntityMode() );
    }
    else {
      currentState = entityEntry.getLoadedState();
    }

    final Object[] deletedState = createDeletedState( persister, currentState, session );
    entityEntry.setDeletedState( deletedState );

    session.getInterceptor().onDelete(
        entity,
        entityEntry.getId(),
        deletedState,
        persister.getPropertyNames(),
        propTypes
    );

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

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

    new ForeignKeys.Nullifier( entity, true, false, session )
        .nullifyTransientReferences( entityEntry.getDeletedState(), propTypes );
    new Nullability( session ).checkNullability( entityEntry.getDeletedState(), persister, true );
    persistenceContext.getNullifiableEntityKeys().add( key );

    // Ensures that containing deletions happen before sub-deletions
    session.getActionQueue().addAction(
        new EntityDeleteAction(
            entityEntry.getId(),
View Full Code Here
TOP

Related Classes of org.hibernate.engine.PersistenceContext

  • org.hibernate.action.EntityDeleteAction
  • org.hibernate.action.internal.EntityDeleteAction
  • org.hibernate.event.def.AbstractFlushingEventListener
  • org.hibernate.event.def.DefaultDeleteEventListener
  • org.hibernate.event.def.DefaultEvictEventListener
  • org.hibernate.event.def.DefaultInitializeCollectionEventListener
  • org.hibernate.event.def.DefaultLoadEventListener
  • org.hibernate.event.def.WrapVisitor
  • org.hibernate.loader.Loader
  • org.hibernate.ogm.loader.OgmLoader
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.