Example usage for org.hibernate.event.spi PostDeleteEvent getDeletedState

Introduction

In this page you can find the example usage for org.hibernate.event.spi PostDeleteEvent getDeletedState.

Prototype

public Object[] getDeletedState() 

Source Link

Usage

From source file:org.cgiar.ccafs.marlo.data.HibernateAuditLogListener.java

License:Open Source License

@Override
public void onPostDelete(PostDeleteEvent postDeleteEvent) {

    Object entity = postDeleteEvent.getEntity();
    LOG.debug("begin onPostDelete for Entity : " + entity);

    AuditLogContext auditLogContext = AuditLogContextProvider.getAuditLogContext();

    /**//from   w w w  .  j  a v a  2 s  .c o m
     * This is because our save(entity), update(entity) and delete(entity) methods on our DAOs should not
     * execute the listeners. There might be a better way to do this like conditionally active the listeners.
     */
    if (auditLogContext.getActionName() == null
            && CollectionUtils.isEmpty(auditLogContext.getRelationsNames())) {
        LOG.debug("auditLogContext has not been initiliazed for this request, so not audit logging");
        return;
    }

    /**
     * We might delete many entities on a single request, but we only want to do the audit logging on one.
     */
    if (!entity.getClass().getCanonicalName().equals(auditLogContext.getEntityCanonicalName())) {
        LOG.debug("Entity : " + entity + " , is not the entity we want to audit log");
        return;
    }

    HashMap<String, Object> deleteRecord = new HashMap<>();
    if (entity instanceof IAuditLog) {
        deleteRecord.put(IAuditLog.ENTITY, entity);
        deleteRecord.put(IAuditLog.PRINCIPAL, new Long(1));
        auditLogContext.getDeletes().add(deleteRecord);

        ClassMetadata classMetadata = postDeleteEvent.getSession().getSessionFactory()
                .getClassMetadata(entity.getClass());
        Type[] types = classMetadata.getPropertyTypes();
        auditLogContext.getDeletes().addAll(this.relations(postDeleteEvent.getDeletedState(), types,
                ((IAuditLog) entity).getId(), true, postDeleteEvent.getSession(), entity));
    }

    postDeleteEvent.getSession().getActionQueue()
            .registerProcess(new MARLOAuditBeforeTransactionCompletionProcess());
}

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