Example usage for org.hibernate.persister.entity EntityPersister getIdentifier

List of usage examples for org.hibernate.persister.entity EntityPersister getIdentifier

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Introduction

In this page you can find the example usage for org.hibernate.persister.entity EntityPersister getIdentifier.

Prototype

Serializable getIdentifier(Object entity, SharedSessionContractImplementor session);

Source Link

Document

Get the identifier of an instance (throw an exception if no identifier property)

Usage

From source file:com.autobizlogic.abl.data.hibernate.HibPersistentBeanFactory.java

License:Open Source License

/**
 * Create a PersistentBean from a Pojo or Map entity.
 *///from w  w w  . j  a  v a  2  s . c o m
public PersistentBean createPersistentBeanFromObject(Object bean, EntityPersister ep) {
    if (bean == null)
        return null;
    if (bean instanceof PersistentBean)
        throw new RuntimeException("Cannot create a PersistentBean from a PersistentBean: " + bean);
    if (!(bean instanceof Map)) {
        Class<?> epCls = ep.getMappedClass(EntityMode.POJO);
        Class<?> beanCls = bean.getClass();
        if (!epCls.isAssignableFrom(beanCls))
            throw new RuntimeException("Bean is of wrong type for the given persister: " + beanCls.getName()
                    + " vs " + epCls.getName());
    }
    Serializable pk;
    try {
        pk = ep.getIdentifier(bean, (SessionImplementor) session);
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
    return new HibPersistentBean(bean, pk, ep, session);
}

From source file:com.autobizlogic.abl.data.hibernate.HibPersistentBeanFactory.java

License:Open Source License

/**
 * Make a shallow copy of the given Pojo or Map object. 
 * The resulting PersistentBean will contain a copy
 * of all the attributes and single-valued relationships. Access to the collections will
 * be deferred to the original bean passed here.
 *//*from  w w w.ja  v  a 2s .  c o m*/
public PersistentBean createPersistentBeanCopyFromObject(Object bean, EntityPersister ep) {
    if (bean == null)
        return null;
    try {
        Serializable pk = ep.getIdentifier(bean, (SessionImplementor) session);
        return new HibPersistentBeanCopy(bean, pk, ep);
    } catch (Exception ex) {
        ex.printStackTrace();
        return null;
    }
}

From source file:com.autobizlogic.abl.data.hibernate.HibPersistentBeanFactory.java

License:Open Source License

/**
 * Make a shallow copy of the given Pojo or Map bean. The resulting PersistentBean will contain 
 * a copy of all the attributes and single-valued relationships. Access to the collections will
 * be deferred to the original Pojo or Map bean passed herein.
 *//*from w  ww .j  ava  2s.  c  o m*/
public static PersistentBean createPersistentBeanCopyFromState(Object[] state, Object entity,
        EntityPersister ep, Session session) {

    Serializable pk = ep.getIdentifier(entity, (SessionImplementor) session);
    return new HibPersistentBeanCopy(state, entity, pk, ep, session);
}

From source file:edu.utah.further.core.data.hibernate.listeners.PreUpdatePreventNullOverwriteListener.java

License:Apache License

@SuppressWarnings("resource")
@Override//from w w w. j  a  va 2 s. com
public boolean onPreUpdate(final PreUpdateEvent event) {
    if (log.isDebugEnabled()) {
        log.debug("Received pre-update event");
    }
    final EntityPersister entityPersister = event.getPersister();
    final EntityMode entityMode = entityPersister.guessEntityMode(event.getEntity());
    final Connection connection = getConnection(entityPersister);
    final StatelessSession session = entityPersister.getFactory().openStatelessSession(connection);
    session.beginTransaction();
    final Serializable entityId = entityPersister.getIdentifier(event.getEntity(),
            (SessionImplementor) session);
    final Object existingEntity = session.get(event.getEntity().getClass(), entityId);

    if (log.isDebugEnabled()) {
        log.debug("Loaded existing entity " + existingEntity);
    }

    boolean updatedExistingEntity = false;
    for (int i = 0; i < entityPersister.getPropertyNames().length; i++) {
        final Object oldPropValue = entityPersister.getPropertyValue(existingEntity, i, entityMode);
        if (oldPropValue == null) {

            if (log.isDebugEnabled()) {
                log.debug("Found a property in the existing " + "entity that was null, checking new entity");
            }

            final Object newPropValue = entityPersister.getPropertyValue(event.getEntity(), i, entityMode);

            if (!(newPropValue instanceof Collection<?>) && newPropValue != null) {

                if (log.isDebugEnabled()) {
                    log.debug("The new entity contains a non-null " + "value, updating existing entity");
                }

                entityPersister.setPropertyValue(existingEntity, i, newPropValue, entityMode);
                updatedExistingEntity = true;
            }
        }
    }

    if (updatedExistingEntity) {
        entityPersister.getFactory().getCurrentSession().cancelQuery();
        session.update(existingEntity);
    }

    session.getTransaction().commit();
    session.close();

    return updatedExistingEntity;
}

From source file:it.cilea.core.spring.dao.hibernate.IdTransferringMergeEventListener.java

License:Apache License

/**
 * Hibernate 3.1 implementation of ID transferral.
 *//* w ww .  j ava 2  s.  c o m*/
@Override
protected void entityIsTransient(MergeEvent event, Map copyCache) {
    super.entityIsTransient(event, copyCache);
    SessionImplementor session = event.getSession();
    EntityPersister persister = session.getEntityPersister(event.getEntityName(), event.getEntity());
    // Extract id from merged copy (which is currently registered with
    // Session).
    Serializable id = persister.getIdentifier(event.getResult(), session);
    // Set id on original object (which remains detached).
    persister.setIdentifier(event.getOriginal(), id, session);
}

From source file:org.babyfish.hibernate.collection.spi.persistence.SetBasePersistence.java

License:Open Source License

/**
 * This method is used to replace /*from ww w  .  ja v  a  2 s. com*/
 * "org.hibernate.collection.AbstractPersistentCollection#readElementExistence(Object element)"
 * @param element The example element to be read
 * @return The ref or readed element
 * <ul>
 *  <li>NonNull: Read successfully, check the value of ref to check the read value is null or not</li>
 *  <li>Null: Read failed</li>
 * </ul>
 */
@SuppressWarnings("unchecked")
public Ref<E> visionallyRead(E element) {

    Arguments.mustNotBeNull("element", element);
    String role = this.getNonNullRole();

    SessionImplementor session = this.getSession();
    if (session == null || !session.isOpen() || !session.isConnected()) {
        return null;
    }

    SessionFactoryImplementor sessionFactory = session.getFactory();
    QueryableCollection collection = (QueryableCollection) sessionFactory.getCollectionPersister(role);
    EntityPersister elementPersister = collection.getElementPersister();
    Object elementId = elementPersister.getIdentifier(element, this.getSession());
    if (elementId == null) {
        return new Ref<>();
    }
    if (elementPersister.getEntityMetamodel().getIdentifierProperty().getUnsavedValue()
            .isUnsaved((Serializable) elementId)) {
        return new Ref<>();
    }

    CriteriaImpl criteria = new CriteriaImpl(elementPersister.getEntityName(), session);

    /*
     * Add the condition of element.
     */
    criteria.add(Restrictions.idEq(elementId));

    //ownerKey, not ownerId
    Object ownerKey = collection.getCollectionType().getKeyOfOwner(this.getOwner(), session);
    //In Hibernate, isOneToMany means that there is no middle table
    //The @OneToMany of JPA with middle table is consider as many-to-many in Hibernate
    if (sessionFactory.getCollectionPersister(role).isOneToMany()) {
        String[] joinOwnerColumns = collection.getKeyColumnNames();
        StringBuilder sqlBuilder = new StringBuilder();
        for (int i = 0; i < joinOwnerColumns.length; i++) {
            if (i != 0) {
                sqlBuilder.append(" and ");
            }
            sqlBuilder.append("{alias}.").append(joinOwnerColumns[i]).append(" = ?");
        }
        criteria.add(Restrictions.sqlRestriction(sqlBuilder.toString(), ownerKey, collection.getKeyType()));
    } else {
        String lhsPropertyName = collection.getCollectionType().getLHSPropertyName();
        int lhsPropertyIndex = -1;
        if (lhsPropertyName != null) {
            String[] propertyNames = collection.getOwnerEntityPersister().getPropertyNames();
            for (int i = propertyNames.length - 1; i >= 0; i--) {
                if (propertyNames[i].equals(lhsPropertyName)) {
                    lhsPropertyIndex = i;
                    break;
                }
            }
        }
        String[] lhsColumnNames = JoinHelper.getLHSColumnNames(collection.getCollectionType(), lhsPropertyIndex,
                (OuterJoinLoadable) elementPersister, sessionFactory);
        String[] joinElementColumnNames = collection.getElementColumnNames();
        String[] joinOwnerColumnNames = collection.getKeyColumnNames();
        StringBuilder subQueryBuilder = new StringBuilder();
        subQueryBuilder.append("exists(select * from ").append(collection.getTableName()).append(" as ")
                .append(MIDDLE_TABLE_ALIAS).append(" where ");
        for (int i = 0; i < joinElementColumnNames.length; i++) {
            if (i != 0) {
                subQueryBuilder.append(" and ");
            }
            subQueryBuilder.append("{alias}.").append(lhsColumnNames[i]).append(" = ")
                    .append(MIDDLE_TABLE_ALIAS).append('.').append(joinElementColumnNames[i]);
        }
        for (int i = 0; i < joinOwnerColumnNames.length; i++) {
            subQueryBuilder.append(" and ").append(MIDDLE_TABLE_ALIAS).append(".")
                    .append(joinOwnerColumnNames[i]).append(" = ?");
        }
        subQueryBuilder.append(')');
        criteria.add(
                Restrictions.sqlRestriction(subQueryBuilder.toString(), ownerKey, collection.getKeyType()));
    }
    FlushMode oldFlushMode = session.getFlushMode();
    session.setFlushMode(FlushMode.MANUAL);
    try {
        return new Ref<>((E) criteria.uniqueResult());
    } finally {
        session.setFlushMode(oldFlushMode);
    }
}

From source file:org.eclipse.emf.cdo.examples.hibernate.server.CDOExampleUUIDHexGenerator.java

License:Open Source License

@Override
public Serializable generate(SessionImplementor session, Object obj) {
    final EntityPersister entityPersister = session.getEntityPersister(null, obj);
    final Serializable id = entityPersister.getIdentifier(obj, session);
    if (id != null) {
        return id;
    }/*from w  ww. j a  v a  2  s  . c  o m*/

    return super.generate(session, obj);
}

From source file:org.eclipse.emf.cdo.server.internal.hibernate.tuplizer.CDOUUIDHexGenerator.java

License:Open Source License

@Override
public Serializable generate(SessionImplementor session, Object obj) {
    if (!(obj instanceof CDORevision)) {
        return super.generate(session, obj);
    }//www. j  a  va 2  s.  c  o m

    final EntityPersister entityPersister = session.getEntityPersister(null, obj);
    final Serializable id = entityPersister.getIdentifier(obj, session);
    if (id != null) {
        return id;
    }

    return super.generate(session, obj);
}

From source file:org.eclipse.emf.teneo.hibernate.HbUtil.java

License:Open Source License

private static EObject merge(SessionImplementor sessionImplementor, EObject eObject,
        Map<EObject, EObject> copyCache, int maxMergeLevel, int currentMergeLevel) {
    if (copyCache.containsKey(eObject)) {
        return copyCache.get(eObject);
    }/*www.  ja va2s.c  om*/
    final String entityName = sessionImplementor.guessEntityName(eObject);
    final EntityPersister persister = sessionImplementor.getEntityPersister(entityName, eObject);
    final Serializable id = persister.getIdentifier(eObject, sessionImplementor);
    if (id != null) {
        final EObject source = (EObject) ((Session) sessionImplementor).get(entityName, id);
        copyCache.put(eObject, source);
        if (maxMergeLevel == currentMergeLevel) {
            return source;
        }
        // now copy the features
        for (EStructuralFeature eFeature : source.eClass().getEAllStructuralFeatures()) {
            if (eFeature instanceof EAttribute) {
                source.eSet(eFeature, eObject.eGet(eFeature));
            } else if (eFeature.isMany()) {
                final List<EObject> newValues = new ArrayList<EObject>();
                @SuppressWarnings("unchecked")
                final List<EObject> currentValues = (List<EObject>) eObject.eGet(eFeature);
                for (EObject currentValue : currentValues) {
                    newValues.add(merge(sessionImplementor, currentValue, copyCache, maxMergeLevel,
                            currentMergeLevel + 1));
                }
                source.eSet(eFeature, newValues);
            } else {
                source.eSet(eFeature, merge(sessionImplementor, (EObject) eObject.eGet(eFeature), copyCache,
                        maxMergeLevel, currentMergeLevel + 1));
            }
        }
        return source;
    } else {
        return eObject;
    }
}

From source file:org.eclipse.emf.teneo.hibernate.mapping.identifier.IdentifierUtil.java

License:Open Source License

/** Returns the id of the passed object */
@SuppressWarnings("deprecation")
public static Serializable getID(EObject eobj, HbDataStore hd) {
    final String entityName = hd.getEntityNameStrategy().toEntityName(eobj.eClass());
    final EntityPersister entityPersister = ((SessionFactoryImpl) hd.getSessionFactory())
            .getEntityPersister(entityName);
    return entityPersister.getIdentifier(eobj, EntityMode.MAP);
}