Example usage for org.hibernate.event.spi MergeEvent getResult

Introduction

In this page you can find the example usage for org.hibernate.event.spi MergeEvent getResult.

Prototype

public Object getResult() 

Source Link

Usage

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

License:Apache License

/**
 * Hibernate 3.1 implementation of ID transferral.
 *//*from   w w w.j  a va 2  s.co 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);
}

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From source file:org.babyfish.hibernate.event.ObjectModelMergeEventListener.java

License:Open Source License

protected void afterMerge(MergeEvent event) {
    Object original = event.getOriginal();
    Object result = event.getResult();

    //Merged transient or detached object with ObjectModel.
    if (original != result && Metadatas.has(original.getClass())) {
        JPAObjectModelMetadata objectModelMetadata = JPAMetadatas.of(original.getClass());
        ObjectModel objectModel = (ObjectModel) objectModelMetadata.getFactory().get(original);
        for (AssociationProperty associationProperty : objectModelMetadata.getAssociationProperties()
                .values()) {//from ww  w.  j  a v  a  2 s  .  co  m
            AssociationProperty oppositeProperty = associationProperty.getOppositeProperty();
            if (oppositeProperty == null || !oppositeProperty.isReference()) {
                continue;
            }
            AssociatedEndpoint<?, ?> associatedEndpoint = objectModel
                    .getAssociation(associationProperty.getId());
            if (associatedEndpoint.isDisabled() || !associatedEndpoint.isLoaded()) {
                continue;
            }
            ObjectModelFactory<?> elementObjectModelFactory = oppositeProperty.getDeclaringObjectModelMetadata()
                    .getFactory();
            int oppositePropertyId = oppositeProperty.getId();
            if (associatedEndpoint instanceof Collection<?>) {
                for (Object o : (Collection<?>) associatedEndpoint) {
                    if (o != null) {
                        ObjectModel elementObjectModel = (ObjectModel) elementObjectModelFactory.get(o);
                        replaceBackReferenceToResult(event,
                                elementObjectModel.getAssociation(oppositePropertyId));
                    }
                }
            } else if (associatedEndpoint instanceof Map<?, ?>) {
                for (Object o : ((Map<?, ?>) associatedEndpoint).values()) {
                    if (o != null) {
                        ObjectModel elementObjectModel = (ObjectModel) elementObjectModelFactory.get(o);
                        replaceBackReferenceToResult(event,
                                elementObjectModel.getAssociation(oppositePropertyId));
                    }
                }
            } else {
                Object o = ((Reference<?>) associatedEndpoint).get();
                if (o != null) {
                    ObjectModel elementObjectModel = (ObjectModel) elementObjectModelFactory.get(o);
                    replaceBackReferenceToResult(event, elementObjectModel.getAssociation(oppositePropertyId));
                }
            }
        }
    }
}

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From source file:org.babyfish.hibernate.event.ObjectModelMergeEventListener.java

License:Open Source License

private static void replaceBackReferenceToResult(MergeEvent event, AssociatedEndpoint<?, ?> backEndpoint) {
    if (backEndpoint.isDisabled() || !backEndpoint.isLoaded()) {
        return;//from   w  w  w  . jav a 2  s. c om
    }

    Reference<?> reference = (Reference<?>) backEndpoint;
    if (reference.get(true) == event.getResult()) {
        return;
    }

    Method hibernateSetMethod;
    if (backEndpoint instanceof EntityKeyedReference<?, ?, ?>) {
        hibernateSetMethod = ENTITY_KEYED_REFERENCE_HIBERNATE_SET;
    } else if (backEndpoint instanceof EntityIndexedReference<?, ?>) {
        hibernateSetMethod = ENTITY_INDEXED_REFERENCE_HIBERNATE_SET;
    } else {
        hibernateSetMethod = ENTITY_REFERENCE_HIBERNATE_SET;
    }

    try {
        hibernateSetMethod.invoke(backEndpoint, event.getResult());
    } catch (IllegalAccessException ex) {
        throw new AssertionError("Internal bug", ex);
    } catch (InvocationTargetException ex) {
        UncheckedException.rethrow(ex.getTargetException());
    }
}

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