Example usage for javax.persistence EntityManager remove

List of usage examples for javax.persistence EntityManager remove

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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:org.apache.oozie.service.JPAService.java

/**
 * Execute multiple update/insert queries in one transaction
 * @param insertBeans list of beans to be inserted
 * @param updateQueryList list of update queries
 * @param deleteBeans list of beans to be deleted
 * @param em Entity Manager/* w  ww .  j a  v a 2s.c o  m*/
 * @throws JPAExecutorException
 */
public void executeBatchInsertUpdateDelete(Collection<JsonBean> insertBeans, List<QueryEntry> updateQueryList,
        Collection<JsonBean> deleteBeans, EntityManager em) throws JPAExecutorException {
    Instrumentation.Cron cron = new Instrumentation.Cron();
    try {

        LOG.trace("Executing Queries in Batch");
        cron.start();
        em.getTransaction().begin();
        if (updateQueryList != null && updateQueryList.size() > 0) {
            for (QueryEntry q : updateQueryList) {
                if (instr != null) {
                    instr.incr(INSTRUMENTATION_GROUP_JPA, q.getQueryName().name(), 1);
                }
                q.getQuery().executeUpdate();
            }
        }
        if (insertBeans != null && insertBeans.size() > 0) {
            for (JsonBean bean : insertBeans) {
                em.persist(bean);
            }
        }
        if (deleteBeans != null && deleteBeans.size() > 0) {
            for (JsonBean bean : deleteBeans) {
                em.remove(em.merge(bean));
            }
        }
        if (em.getTransaction().isActive()) {
            if (FaultInjection.isActive("org.apache.oozie.command.SkipCommitFaultInjection")) {
                throw new RuntimeException("Skipping Commit for Failover Testing");
            }
            em.getTransaction().commit();
        }
    } catch (PersistenceException e) {
        throw new JPAExecutorException(ErrorCode.E0603, e);
    } finally {
        processFinally(em, cron, "batchqueryexecutor", true);
    }
}

From source file:it.attocchi.jpa2.JpaController.java

public <T extends Serializable> void delete(Class<T> clazz, T o, Object id) throws Exception {

    testClazz(clazz);/*from ww  w. jav a2 s. c o m*/

    EntityManager em = getEntityManager();

    try {
        if (!globalTransactionOpen)
            em.getTransaction().begin();

        T attached = em.find(clazz, id);
        if (attached != null) {
            em.remove(attached);
            // em.remove(o);
        }
        if (!globalTransactionOpen)
            em.getTransaction().commit();

    } catch (Exception e) {
        throw e;
    } finally {

        // Close the database connection:
        if (!globalTransactionOpen) {
            if (em.getTransaction().isActive())
                em.getTransaction().rollback();
            closeEm(); // em.close();
        }
    }

}

From source file:org.rhq.enterprise.server.drift.DriftManagerBeanTest.java

private void deleteNewResource(Resource resource) throws Exception {
    if (null != resource) {
        EntityManager em = null;

        try {//from ww  w. j  a  va2 s. c  o m
            ResourceManagerLocal resourceManager = LookupUtil.getResourceManager();

            // invoke bulk delete on the resource to remove any dependencies not defined in the hibernate entity model
            // perform in-band and out-of-band work in quick succession
            List<Integer> deletedIds = resourceManager.uninventoryResource(overlord, resource.getId());
            for (Integer deletedResourceId : deletedIds) {
                resourceManager.uninventoryResourceAsyncWork(overlord, deletedResourceId);
            }

            // now dispose of other hibernate entities
            getTransactionManager().begin();
            em = getEntityManager();

            ResourceType type = em.find(ResourceType.class, resource.getResourceType().getId());
            Agent agent = em.find(Agent.class, resource.getAgent().getId());
            if (null != agent) {
                em.remove(agent);
            }
            if (null != type) {
                em.remove(type);
            }

            getTransactionManager().commit();
        } catch (Exception e) {
            try {
                System.out
                        .println("CANNOT CLEAN UP TEST (" + this.getClass().getSimpleName() + ") Cause: " + e);
                getTransactionManager().rollback();
            } catch (Exception ignore) {
            }
        } finally {
            if (null != em) {
                em.close();
            }
        }
    }
}

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

private void deleteArtifact(ArtificerArtifact artifact, boolean force, EntityManager entityManager)
        throws ArtificerException {
    List<Long> targetedArtifacts = new ArrayList<>();
    targetedArtifacts.add(artifact.getId());
    for (ArtificerArtifact derivedArtifact : artifact.getDerivedArtifacts()) {
        targetedArtifacts.add(derivedArtifact.getId());
    }//w w  w  . j  a v  a 2s  .  com

    if (force) {
        // delete all relationships targeting this artifact or its derived artifacts
        Query query = entityManager.createQuery(
                "SELECT r FROM ArtificerRelationship r INNER JOIN r.targets ts INNER JOIN ts.target t WHERE t.id IN :targetedArtifacts");
        query.setParameter("targetedArtifacts", targetedArtifacts);
        List<ArtificerRelationship> relationships = query.getResultList();
        for (ArtificerRelationship relationship : relationships) {
            entityManager.remove(relationship);
            HibernateUtil.evict(ArtificerRelationship.class, relationship.getId(), entityManager);
        }
    } else {
        // if any non-trashed generic/modeled relationships target this artifact or its derived artifacts, exception
        Query query = entityManager.createQuery(
                "SELECT r FROM ArtificerRelationship r INNER JOIN r.owner o INNER JOIN r.targets ts INNER JOIN ts.target t WHERE o.trashed = false AND t.id IN :targetedArtifacts AND (r.type=:type1 OR r.type=:type2)");
        query.setParameter("targetedArtifacts", targetedArtifacts);
        query.setParameter("type1", RelationshipType.GENERIC);
        query.setParameter("type2", RelationshipType.MODELED);
        if (query.getResultList().size() > 0) {
            throw ArtificerConflictException.relationshipConstraint(artifact.getUuid());
        }
    }

    artifact.setTrashed(true);
    HibernateUtil.evict(ArtificerArtifact.class, artifact.getId(), entityManager);
    if (ArtificerConfig.isAuditingEnabled()) {
        HibernateAuditor.createDeleteEntry(artifact);
    }
    for (ArtificerArtifact derivedArtifact : artifact.getDerivedArtifacts()) {
        derivedArtifact.setTrashed(true);
        HibernateUtil.evict(ArtificerArtifact.class, derivedArtifact.getId(), entityManager);
        if (ArtificerConfig.isAuditingEnabled()) {
            HibernateAuditor.createDeleteEntry(derivedArtifact);
        }
    }
}

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

public void deleteBusiness(DeleteBusiness body) throws DispositionReportFaultMessage {
    long startTime = System.currentTimeMillis();

    EntityManager em = PersistenceManager.getEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {/* ww  w  .jav a2s.  c  o  m*/
        tx.begin();

        UddiEntityPublisher publisher = this.getEntityPublisher(em, body.getAuthInfo());

        new ValidatePublish(publisher).validateDeleteBusiness(em, body);

        List<String> entityKeyList = body.getBusinessKey();
        for (String entityKey : entityKeyList) {
            Object obj = em.find(org.apache.juddi.model.BusinessEntity.class, entityKey);
            em.remove(obj);
        }

        tx.commit();
        long procTime = System.currentTimeMillis() - startTime;
        serviceCounter.update(PublicationQuery.DELETE_BUSINESS, QueryStatus.SUCCESS, procTime);
    } catch (DispositionReportFaultMessage drfm) {
        long procTime = System.currentTimeMillis() - startTime;
        serviceCounter.update(PublicationQuery.DELETE_BUSINESS, QueryStatus.FAILED, procTime);
        throw drfm;
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
}

From source file:org.fracturedatlas.athena.apa.impl.jpa.JpaApaAdapter.java

@Override
public Boolean deletePropField(Object id) {
    EntityManager em = this.emf.createEntityManager();
    try {//from  w  ww . j  a va 2  s  .c o  m
        Long longId = LongUserType.massageToLong(id);
        PropField pf = em.find(PropField.class, longId);
        if (pf != null) {
            em.getTransaction().begin();
            em.remove(pf);
            em.getTransaction().commit();
            return true;
        } else {
            return false;
        }
    } finally {
        cleanup(em);
    }
}

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

private void tearDownTestEnvironment() throws Exception {
    getTransactionManager().begin();/*  w w w . jav a 2 s . co m*/
    EntityManager em = getEntityManager();

    try {
        try {
            resource1 = em.find(Resource.class, resource1.getId());
            for (InstalledPackage ip : resource1.getInstalledPackages()) {
                em.remove(ip);
            }

            package1 = em.find(Package.class, package1.getId());
            em.remove(package1);

            package2 = em.find(Package.class, package2.getId());
            em.remove(package2);

            package3 = em.find(Package.class, package3.getId());
            em.remove(package3);

            package4 = em.find(Package.class, package4.getId());
            em.remove(package4);

            package5 = em.find(Package.class, package5.getId());
            em.remove(package5);

            packageType1 = em.find(PackageType.class, packageType1.getId());
            em.remove(packageType1);

            packageType2 = em.find(PackageType.class, packageType2.getId());
            em.remove(packageType2);

            packageType3 = em.find(PackageType.class, packageType3.getId());
            em.remove(packageType3);

            packageType4 = em.find(PackageType.class, packageType4.getId());
            em.remove(packageType4);

            ResourceTreeHelper.deleteResource(em, resource1);

            resourceType1 = em.find(ResourceType.class, resourceType1.getId());
            em.remove(resourceType1);

            getTransactionManager().commit();
        } catch (Exception e) {
            e.printStackTrace();
            getTransactionManager().rollback();
            throw e;
        }
    } finally {
        em.close();
    }
}

From source file:org.fracturedatlas.athena.apa.impl.jpa.JpaApaAdapter.java

@Override
public Boolean deleteRecord(String type, Object id) {
    logger.debug("Deleting ticket: " + id);
    if (id == null) {
        return false;
    }/*from  ww w  . j  a v a  2  s . c  o  m*/
    EntityManager em = this.emf.createEntityManager();
    try {
        Long longId = LongUserType.massageToLong(id);
        em.getTransaction().begin();
        JpaRecord t = em.find(JpaRecord.class, longId);
        logger.trace("Deleting ticket: " + t);
        em.remove(t);
        logger.trace("Deleted ticket: " + longId);
        em.getTransaction().commit();
        deleteFromIndex(id);
        return true;
    } finally {
        cleanup(em);
    }
}

From source file:info.dolezel.jarss.rest.v1.FeedsService.java

@DELETE
@Path("{id}")
public Response unsubscribeFeed(@Context SecurityContext context, @PathParam("id") int feedId) {
    EntityManager em;
    EntityTransaction tx;//from  w w  w  .  jav  a2  s  .c  om
    User user;
    Feed f;
    FeedData fd;

    em = HibernateUtil.getEntityManager();
    tx = em.getTransaction();
    user = (User) context.getUserPrincipal();

    try {
        tx.begin();

        try {
            f = (Feed) em.createQuery("from Feed where id = :id", Feed.class).setParameter("id", feedId)
                    .getSingleResult();
        } catch (NoResultException e) {
            return Response.status(Response.Status.NOT_FOUND)
                    .entity(new ErrorDescription("Feed does not exist")).build();
        }
        if (!f.getUser().equals(user)) {
            return Response.status(Response.Status.FORBIDDEN)
                    .entity(new ErrorDescription("Feed not owned by user")).build();
        }

        fd = f.getData();
        em.remove(f);

        if (fd.getFeeds().isEmpty())
            em.remove(fd);

        tx.commit();

        return Response.noContent().build();
    } finally {
        if (tx.isActive())
            tx.rollback();
        em.close();
    }
}

From source file:fr.univrouen.poste.domain.User.java

@Transactional
public void remove() {
    EntityManager entityManager = entityManager();
    User user = this;
    if (!entityManager.contains(this)) {
        user = User.findUser(this.getId());
    }/*from  w  ww.  j ava 2 s  . co m*/

    // candidat
    List<GalaxieEntry> galaxieEntries = GalaxieEntry.findGalaxieEntrysByCandidat(user).getResultList();
    for (GalaxieEntry galaxieEntry : galaxieEntries) {
        galaxieEntry.remove();
    }
    List<PosteCandidature> candidatures = PosteCandidature.findPosteCandidaturesByCandidat(user)
            .getResultList();
    for (PosteCandidature candidature : candidatures) {
        candidature.remove();
    }

    // membre
    List<CommissionEntry> commissionEntries = CommissionEntry.findCommissionEntrysByMembre(user)
            .getResultList();
    for (CommissionEntry commissionEntry : commissionEntries) {
        commissionEntry.getPoste().getMembres().remove(user);
        commissionEntry.remove();
    }
    Set<PosteAPourvoir> postes = user.getPostes();
    if (postes != null) {
        for (PosteAPourvoir poste : postes) {
            poste.getMembres().remove(user);
        }
    }

    entityManager.remove(user);
}