Example usage for javax.persistence EntityManager remove

Introduction

In this page you can find the example usage for javax.persistence EntityManager remove.

Prototype

public void remove(Object entity);

Source Link

Document

Remove the entity instance.

Usage

From source file:eu.forgestore.ws.impl.FStoreJpaController.java

public void deleteUser(int userid) {
    EntityManager entityManager = entityManagerFactory.createEntityManager();
    FStoreUser u = entityManager.find(FStoreUser.class, userid);

    EntityTransaction entityTransaction = entityManager.getTransaction();

    entityTransaction.begin();//ww  w  .j  a  va 2 s  . c o  m

    entityManager.remove(u);

    entityTransaction.commit();
}

From source file:com.espirit.moddev.examples.uxbridge.newswidget.jpa.ArticleHandler.java

/**
 * Deletes every article older than the creationTime of the UXBEntity
 *
 * @param entity Entity containing the expireDate (= createTime of the entity)
 *///from   w w  w.java  2s  .  c om
public void cleanup(UXBEntity entity) throws Exception {

    EntityManager em = null;
    EntityTransaction tx = null;
    try {

        em = emf.createEntityManager();
        tx = em.getTransaction();
        tx.begin();

        Query query = em.createQuery(new StringBuilder()
                .append("SELECT x FROM article x WHERE x.lastmodified<:expiredate ").toString());
        query.setParameter("expiredate", entity.getCreateTime());

        if (!query.getResultList().isEmpty()) {
            for (Object obj : query.getResultList()) {
                Article art = (Article) obj;
                em.remove(art);
            }
        }
        tx.commit();
    } catch (Exception e) {
        if (tx != null) {
            tx.setRollbackOnly();
            throw e;
        }
        logger.error("Failure while deleting from the database", e);
    } finally {
        if (tx != null && tx.isActive()) {
            if (tx.getRollbackOnly()) {
                tx.rollback();
            }
        }
        if (em != null) {
            em.close();
        }
    }

}

From source file:eu.forgestore.ws.impl.FStoreJpaController.java

public void deleteProperty(int propid) {

    EntityManager entityManager = entityManagerFactory.createEntityManager();
    FStoreProperty c = entityManager.find(FStoreProperty.class, propid);

    EntityTransaction entityTransaction = entityManager.getTransaction();
    entityTransaction.begin();//from ww w.  j a v  a2 s .  c o m
    entityManager.remove(c);
    entityTransaction.commit();

}

From source file:org.rhq.enterprise.server.resource.test.ResourceFactoryManagerBeanTest.java

/**
 * Deletes a previously persisted resource from the database.
 *
 * @throws Exception if anything goes wrong
 *///from  ww w  .j  a v a 2s  .c  o m
private void teardownResourceEnvironment() throws Exception {
    if (parentResource != null) {

        List<Integer> deletedIds = resourceManager.uninventoryResource(overlord, parentResource.getId());
        for (Integer deletedResourceId : deletedIds) {
            resourceManager.uninventoryResourceAsyncWork(overlord, deletedResourceId);
        }

        getTransactionManager().begin();
        EntityManager em = getEntityManager();
        try {
            // Remove the child first.
            ResourceType deleteMeType = em.find(ResourceType.class, childResourceType.getId());
            em.remove(deleteMeType);

            deleteMeType = em.find(ResourceType.class, parentResourceType.getId());
            em.remove(deleteMeType);

            getTransactionManager().commit();
        } catch (Exception e) {
            try {
                System.out.println(e);
                getTransactionManager().rollback();
            } catch (Exception ignore) {
            }

            throw e;
        } finally {
            em.close();
        }
    }
}

From source file:org.opencastproject.comments.events.persistence.EventCommentDatabaseServiceImpl.java

@Override
public void deleteComment(String eventId, long commentId)
        throws NotFoundException, EventCommentDatabaseException {
    EntityManager em = emf.createEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {/*from   w  w w  .  ja va  2  s  . c om*/
        tx.begin();
        EventCommentDto event = getEventComment(eventId, commentId, em);
        if (event == null)
            throw new NotFoundException(
                    "Event comment with ID " + eventId + " and " + commentId + " does not exist");

        em.remove(event);
        tx.commit();
        sendMessageUpdate(eventId);
    } catch (NotFoundException e) {
        throw e;
    } catch (Exception e) {
        logger.error("Could not delete event comment: {}", ExceptionUtils.getStackTrace(e));
        if (tx.isActive())
            tx.rollback();

        throw new EventCommentDatabaseException(e);
    } finally {
        if (em != null)
            em.close();
    }
}

From source file:edu.vt.middleware.gator.JpaConfigManager.java

/** {@inheritDoc}. */
@Transactional(propagation = Propagation.REQUIRED)
public void delete(final ProjectConfig project) {
    final EntityManager em = getEntityManager();
    if (logger.isDebugEnabled()) {
        logger.debug("Deleting " + project);
    }//from   w ww .j av  a 2  s  . com

    ProjectConfig liveProject = project;
    if (!em.contains(project)) {
        liveProject = find(ProjectConfig.class, project.getId());
    }
    // Touch all collections to lazy load dependent data so complete project
    // configuration is available to event handlers
    liveProject.getAppenders();
    liveProject.getCategories();
    liveProject.getClients();
    liveProject.getPermissions();

    em.remove(liveProject);

    // Fire events on a separate thread so we do not disrupt client thread
    // (e.g. avoid subscriber blocking)
    for (ConfigChangeListener listener : getConfigChangeListeners()) {
        eventExecutor.execute(new ProjectRemovedEvent(listener, liveProject));
    }
}

From source file:org.artificer.repository.hibernate.HibernatePersistenceManager.java

@Override
public void deleteOntology(final String uuid) throws ArtificerException {
    new HibernateUtil.HibernateTask<Void>() {
        @Override/*from  www .j  a v  a 2 s  . c om*/
        protected Void doExecute(EntityManager entityManager) throws Exception {
            ArtificerOntology ontology = HibernateUtil.getOntology(uuid, entityManager);
            HibernateUtil.evict(ArtificerOntology.class, ontology.getSurrogateId(), entityManager);
            // Orphan removal is not honored by JPQL, so we need to manually delete using #remove.
            entityManager.remove(ontology);
            return null;
        }
    }.execute();
}

From source file:org.apache.juddi.api.impl.UDDIPublicationImplExt.java

private void setOperationalInfo(EntityManager em, org.apache.juddi.model.Tmodel uddiEntity,
        UddiEntityPublisher publisher) throws DispositionReportFaultMessage {

    uddiEntity.setAuthorizedName(publisher.getAuthorizedName());

    Date now = new Date();
    uddiEntity.setModified(now);/*  ww  w .j av  a  2 s .c o m*/
    uddiEntity.setModifiedIncludingChildren(now);

    uddiEntity.setNodeId(nodeId);

    org.apache.juddi.model.Tmodel existingUddiEntity = em.find(uddiEntity.getClass(),
            uddiEntity.getEntityKey());
    if (existingUddiEntity != null)
        uddiEntity.setCreated(existingUddiEntity.getCreated());
    else
        uddiEntity.setCreated(now);

    if (existingUddiEntity != null)
        em.remove(existingUddiEntity);

}

From source file:org.artificer.repository.hibernate.HibernatePersistenceManager.java

@Override
public void deleteStoredQuery(final String queryName) throws ArtificerException {
    new HibernateUtil.HibernateTask<Void>() {
        @Override/*from w ww  .jav a  2  s.c o  m*/
        protected Void doExecute(EntityManager entityManager) throws Exception {
            // Orphan removal is not honored by JPQL, so we need to manually delete using #remove.
            ArtificerStoredQuery storedQuery = entityManager.find(ArtificerStoredQuery.class, queryName);
            if (storedQuery == null) {
                throw ArtificerNotFoundException.storedQueryNotFound(queryName);
            }

            entityManager.remove(storedQuery);
            HibernateUtil.evict(ArtificerStoredQuery.class, storedQuery.getQueryName(), entityManager);

            return null;
        }
    }.execute();
}

From source file:org.rhq.enterprise.server.content.test.RepoManagerBeanTest.java

@Test(enabled = ENABLED)
public void getRepoGroupTypeByName() throws Exception {
    // Setup/*w  w w . j  av a 2s .  c  o m*/
    EntityManager entityManager = getEntityManager();
    String name = "test-repo-type";

    RepoGroupType groupType = new RepoGroupType(name);
    entityManager.persist(groupType);
    entityManager.flush();

    // Test
    RepoGroupType type = repoManager.getRepoGroupTypeByName(overlord, name);
    assert type != null;
    assert type.getName().equals(name);

    // Cleanup
    type = entityManager.find(RepoGroupType.class, type.getId());
    entityManager.remove(type);
    entityManager.flush();
}