Example usage for org.hibernate.event.spi EventSource load

Introduction

In this page you can find the example usage for org.hibernate.event.spi EventSource load.

Prototype

<T> T load(Class<T> theClass, Serializable id);

Source Link

Document

Return the persistent instance of the given entity class with the given identifier, assuming that the instance exists.

Usage

From source file:org.egov.infra.config.persistence.event.listener.HibernateEventListener.java

License:Open Source License

/**
 * For new objects that are created, this event is used to set the audit properties. This is done here instead of the
 * pre-insert event because Hibernate checks for not-null constraints before the pre-update and pre-insert are fired.
 *///from   w w w. j a  va  2 s .  c o  m
@Override
public void onSaveOrUpdate(final SaveOrUpdateEvent event) {
    final EventSource session = event.getSession();
    final Object object = event.getObject();
    if (object instanceof BaseModel
            && !session.getPersistenceContext().reassociateIfUninitializedProxy(object)) {
        // only update the entity if it has been changed
        final Date currentDate = new Date();
        final User usr = session.load(User.class, ApplicationThreadLocals.getUserId());

        final BaseModel entity = (BaseModel) session.getPersistenceContext().unproxyAndReassociate(object);
        if (entity.getCreatedBy() == null) {
            entity.setCreatedDate(currentDate);
            entity.setCreatedBy(usr);
            entity.setModifiedBy(usr);
            entity.setModifiedDate(currentDate);
        }

    } else if (object instanceof Auditable
            && !session.getPersistenceContext().reassociateIfUninitializedProxy(object)) {
        final User usr = session.load(User.class, ApplicationThreadLocals.getUserId());
        final AbstractAuditable entity = (AbstractAuditable) session.getPersistenceContext()
                .unproxyAndReassociate(object);
        if (entity.getCreatedBy() == null) {
            final Date currentDate = new Date();
            entity.setCreatedDate(currentDate);
            entity.setCreatedBy(usr);
            entity.setLastModifiedBy(usr);
            entity.setLastModifiedDate(currentDate);
        }
    }

}

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