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:cz.fi.muni.pa165.daoImpl.TroopDAOImpl.java

@Override
public void removeTroop(Troop troop) throws IllegalArgumentException {
    if (troop == null) {
        throw new IllegalArgumentException("Troop can't be null.");
    }//from  w  w w. ja v a 2 s.  com
    if (troop.getId() == null) {
        throw new IllegalArgumentException("Troop is not present in DB.");
    }
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();
    Troop present = em.find(Troop.class, troop.getId());
    em.getTransaction().commit();

    if (present == null) {
        throw new IllegalArgumentException("Troop is not present in DB.");
    } else {
        em.getTransaction().begin();
        em.remove(em.contains(troop) ? troop : em.merge(troop));
        em.getTransaction().commit();
    }
    em.close();
}

From source file:org.apache.roller.planet.business.jpa.JPAPersistenceStrategy.java

/**
 * Remove object from persistence storage.
 * @param pos the persistent objects to remove
 * @throws org.apache.roller.planet.PlanetException on any error
 *///  ww  w.ja v a2  s . com
public void removeAll(Collection pos) throws PlanetException {
    EntityManager em = getEntityManager(true);
    for (Iterator iterator = pos.iterator(); iterator.hasNext();) {
        Object obj = iterator.next();
        em.remove(obj);
    }
}

From source file:com.epam.training.taranovski.web.project.repository.implementation.VacancyRepositoryImplementation.java

@Override
public boolean delete(Vacancy vacancy) {
    EntityManager em = entityManagerFactory.createEntityManager();
    boolean success = true;
    Vacancy managedVacancy = null;// ww  w .j a v a  2 s.c o  m
    try {
        em.getTransaction().begin();
        managedVacancy = em.merge(vacancy);
        em.remove(managedVacancy);
        em.getTransaction().commit();

        success = true;
    } catch (RuntimeException e) {
        Logger.getLogger(VacancyRepositoryImplementation.class.getName()).info(e);
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
            success = false;
        }
        em.close();
    }

    return success;
}

From source file:com.medigy.persist.EntitySaveListener.java

public void deleteEntityList(final EntityManager manager) {
    while (!entityList.empty()) {
        final EntityInfo obj = (EntityInfo) entityList.pop();
        if (log.isInfoEnabled())
            log.info("Deleteing... " + obj.getEntityClass() + ". (id = " + obj.getId() + ")\n");
        final Object entity = manager.find(obj.getEntityClass(), obj.getId());
        if (entity != null)
            manager.remove(entity);
    }/*w w  w.java 2s. c  o m*/
}

From source file:org.apereo.portal.portlet.dao.jpa.JpaPortletEntityDao.java

@Override
@PortalTransactional//from w  ww .  ja v  a  2 s  . c o  m
public void deletePortletEntity(IPortletEntity portletEntity) {
    Validate.notNull(portletEntity, "portletEntity can not be null");

    final IPortletEntity persistentPortletEntity;
    final EntityManager entityManager = this.getEntityManager();
    if (entityManager.contains(portletEntity)) {
        persistentPortletEntity = portletEntity;
    } else {
        persistentPortletEntity = entityManager.merge(portletEntity);
    }

    entityManager.remove(persistentPortletEntity);
}

From source file:de.iai.ilcd.model.dao.AbstractDao.java

/**
 * Default remove: bring back to persistence context if required and delete
 * //from w  w  w . j a va2s .  com
 * @param obj
 *            object to remove
 * @return remove object
 * @throws Exception
 *             on errors (transaction is being rolled back)
 */
public T remove(T obj) throws Exception {
    if (obj == null) {
        return null;
    }
    EntityManager em = PersistenceUtil.getEntityManager();
    EntityTransaction t = em.getTransaction();

    try {
        t.begin();
        T tmp = em.contains(obj) ? obj : em.merge(obj);
        em.remove(tmp);
        t.commit();
        return tmp;
    } catch (Exception e) {
        t.rollback();
        throw e;
    }
}

From source file:it.infn.ct.futuregateway.apiserver.v1.TaskService.java

/**
 * Removes the task. Task is deleted and all the associated activities and
 * or files removed.//  ww w . jav a  2  s .  c  o m
 *
 * @param id Id of the task to remove
 */
@DELETE
public final void deleteTask(@PathParam("id") final String id) {
    Task task;
    EntityManager em = getEntityManager();
    try {
        task = em.find(Task.class, id);
        if (task == null) {
            throw new NotFoundException();
        }
        EntityTransaction et = em.getTransaction();
        try {
            et.begin();
            em.remove(task);
            et.commit();
        } catch (RuntimeException re) {
            if (et != null && et.isActive()) {
                et.rollback();
            }
            log.error(re);
            log.error("Impossible to remove the task");
            em.close();
            throw new InternalServerErrorException("Errore to remove " + "the task " + id);
        }
        try {
            Storage store = getStorage();
            store.removeAllFiles(Storage.RESOURCE.TASKS, id);
        } catch (IOException ex) {
            log.error("Impossible to remove the directory associated with " + "the task " + id);
        }
    } catch (IllegalArgumentException re) {
        log.error("Impossible to retrieve the task list");
        log.error(re);
        throw new BadRequestException("Task '" + id + "' has a problem!");
    } finally {
        em.close();
    }
}

From source file:org.nuxeo.theme.webwidgets.providers.PersistentProvider.java

public synchronized void removeWidget(final Widget widget) throws ProviderException {
    if (widget == null) {
        throw new ProviderException("Widget is undefined");
    }//w w  w  .  ja v  a2s  .c o m
    WidgetEntity widgetEntity = (WidgetEntity) widget;
    final int id = widgetEntity.getId();
    try {
        getPersistenceProvider().run(true, new RunVoid() {
            public void runWith(EntityManager em) {
                WidgetEntity w = em.getReference(WidgetEntity.class, id);
                em.remove(w);
            }
        });
    } catch (ClientException e) {
        throw new ProviderException(e);
    }
    List<Widget> widgets = getWidgets(widgetEntity.getRegion());
    reorderWidgets(widgets);
}

From source file:fr.mby.opa.picsimpl.dao.DbPictureDao.java

@Override
public void deletePicture(final Picture picture) throws PictureNotFoundException {
    Assert.notNull(picture, "No Picture supplied !");
    Assert.notNull(picture.getId(), "Id should be set for delete !");

    new TxCallback(this.getEmf()) {

        @Override// w w  w  .j  a v a  2s  . c o m
        protected void executeInTransaction(final EntityManager em) {
            final Picture managedPicture = em.find(Picture.class, picture.getId(), LockModeType.WRITE);
            if (managedPicture == null) {
                throw new PictureNotFoundException();
            }

            em.remove(picture);
            em.lock(picture, LockModeType.NONE);
        }
    };
}

From source file:nl.b3p.kaartenbalie.struts.ReportingAction.java

public ActionForward delete(ActionMapping mapping, DynaValidatorForm dynaForm, HttpServletRequest request,
        HttpServletResponse response) throws Exception {
    log.debug("Getting entity manager ......");
    EntityManager em = getEntityManager();
    String[] deleteList = (String[]) dynaForm.get("deleteReport");
    for (int i = 0; i < deleteList.length; i++) {
        Integer id = FormUtils.StringToInteger(deleteList[i]);
        Report report = (Report) em.find(Report.class, id);
        if (report != null) {
            em.remove(report);
        }/*w  w  w.  j  av a 2s.co m*/
        em.flush();
    }

    dynaForm.initialize(mapping);
    prepareMethod(dynaForm, request, LIST, EDIT);
    addDefaultMessage(mapping, request, ACKNOWLEDGE_MESSAGES);
    return getDefaultForward(mapping, request);
}