Examples with OnDeleteInverse com.haulmont.cuba.core.entity.annotation.OnDeleteInverse used on opensource projects

Example 1 with OnDeleteInverse

use of com.haulmont.cuba.core.entity.annotation.OnDeleteInverse in project cuba by cuba-platform.

the class EntityRestoreServiceBean method restoreDetails.

protected void restoreDetails(Entity entity, Date deleteTs, String storeName) {
    EntityManager em = persistence.getEntityManager(storeName);
    MetaClass metaClass = metadata.getClassNN(entity.getClass());
    List<MetaProperty> properties = new ArrayList<>();
    fillProperties(metaClass, properties, OnDelete.class.getName());
    for (MetaProperty property : properties) {
        OnDelete annotation = property.getAnnotatedElement().getAnnotation(OnDelete.class);
        DeletePolicy deletePolicy = annotation.value();
        if (deletePolicy == DeletePolicy.CASCADE) {
            MetaClass detailMetaClass = property.getRange().asClass();
            if (!storeName.equals(metadata.getTools().getStoreName(detailMetaClass))) {
                log.debug("Cannot restore " + property.getRange().asClass() + " because it is from different data store");
                continue;
            }
            if (!SoftDelete.class.isAssignableFrom(detailMetaClass.getJavaClass())) {
                log.debug("Cannot restore " + property.getRange().asClass() + " because it is hard deleted");
                continue;
            }
            if (metadataTools.isOwningSide(property)) {
                Object value = entity.getValue(property.getName());
                if (value instanceof Entity) {
                    restoreEntity((Entity) value, storeName);
                } else if (value instanceof Collection) {
                    for (Object detailEntity : (Collection) value) {
                        restoreEntity((Entity) detailEntity, storeName);
                    }
                }
            } else {
                MetaProperty inverseProp = property.getInverse();
                if (inverseProp == null) {
                    log.debug("Cannot restore " + property.getRange().asClass() + " because it has no inverse property for " + metaClass);
                    continue;
                }
                String jpql = "select e from " + detailMetaClass + " e where e." + inverseProp.getName() + ".id = ?1 " + "and e.deleteTs >= ?2 and e.deleteTs <= ?3";
                Query query = em.createQuery(jpql);
                query.setParameter(1, entity.getId());
                query.setParameter(2, DateUtils.addMilliseconds(deleteTs, -100));
                query.setParameter(3, DateUtils.addMilliseconds(deleteTs, 1000));
                // noinspection unchecked
                List<Entity> list = query.getResultList();
                for (Entity detailEntity : list) {
                    if (entity instanceof SoftDelete) {
                        restoreEntity(detailEntity, storeName);
                    }
                }
            }
        }
    }
    properties = new ArrayList<>();
    fillProperties(metaClass, properties, OnDeleteInverse.class.getName());
    for (MetaProperty property : properties) {
        OnDeleteInverse annotation = property.getAnnotatedElement().getAnnotation(OnDeleteInverse.class);
        DeletePolicy deletePolicy = annotation.value();
        if (deletePolicy == DeletePolicy.CASCADE) {
            MetaClass detailMetaClass = property.getDomain();
            if (!storeName.equals(metadata.getTools().getStoreName(detailMetaClass))) {
                log.debug("Cannot restore " + property.getRange().asClass() + " because it is from different data store");
                continue;
            }
            if (!SoftDelete.class.isAssignableFrom(detailMetaClass.getJavaClass())) {
                log.debug("Cannot restore " + property.getRange().asClass() + " because it is hard deleted");
                continue;
            }
            List<MetaClass> metClassesToRestore = new ArrayList<>();
            metClassesToRestore.add(detailMetaClass);
            metClassesToRestore.addAll(detailMetaClass.getDescendants());
            for (MetaClass metaClassToRestore : metClassesToRestore) {
                if (!metadata.getTools().isPersistent(metaClassToRestore))
                    continue;
                String jpql;
                if (property.getRange().getCardinality().isMany()) {
                    jpql = "select e from " + metaClassToRestore.getName() + " e join e." + property.getName() + " p" + " where p.id = ?1 and e.deleteTs >= ?2 and e.deleteTs <= ?3";
                } else {
                    jpql = "select e from " + metaClassToRestore.getName() + " e where e." + property.getName() + ".id = ?1 and e.deleteTs >= ?2 and e.deleteTs <= ?3";
                }
                Query query = em.createQuery(jpql);
                query.setParameter(1, entity.getId());
                query.setParameter(2, DateUtils.addMilliseconds(deleteTs, -100));
                query.setParameter(3, DateUtils.addMilliseconds(deleteTs, 1000));
                // noinspection unchecked
                List<Entity> list = query.getResultList();
                for (Entity detailEntity : list) {
                    if (entity instanceof SoftDelete) {
                        restoreEntity(detailEntity, storeName);
                    }
                }
            }
        }
    }
}

Example 2 with OnDeleteInverse

use of com.haulmont.cuba.core.entity.annotation.OnDeleteInverse in project cuba by cuba-platform.

the class DeletePolicyProcessor method processOnDeleteInverse.

protected void processOnDeleteInverse(List<MetaProperty> properties) {
    for (MetaProperty property : properties) {
        MetaClass metaClass = property.getDomain();
        List<MetaClass> persistentEntities = new ArrayList<>();
        if (isPersistent(metaClass))
            persistentEntities.add(metaClass);
        for (MetaClass descendant : metaClass.getDescendants()) {
            if (isPersistent(descendant))
                persistentEntities.add(descendant);
        }
        for (MetaClass persistentEntity : persistentEntities) {
            OnDeleteInverse annotation = property.getAnnotatedElement().getAnnotation(OnDeleteInverse.class);
            DeletePolicy deletePolicy = annotation.value();
            switch(deletePolicy) {
                case DENY:
                    if (referenceExists(persistentEntity.getName(), property))
                        throw new DeletePolicyException(this.metaClass.getName(), persistentEntity.getName());
                    break;
                case CASCADE:
                    cascade(persistentEntity.getName(), property);
                    break;
                case UNLINK:
                    unlink(persistentEntity.getName(), property);
                    break;
            }
        }
    }
}