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:com.sdl.odata.datasource.jpa.JPADataSource.java

@Override
public void delete(ODataUri uri, EntityDataModel entityDataModel) throws ODataException {
    Option<Object> entity = extractEntityWithKeys(uri, entityDataModel);

    if (entity.isDefined()) {
        Object jpaEntity = entityMapper.convertODataEntityToDS(entity.get(), entityDataModel);
        if (jpaEntity != null) {
            EntityManager entityManager = getEntityManager();
            EntityTransaction transaction = entityManager.getTransaction();
            try {
                transaction.begin();/*w  w  w .jav  a  2s .  c  o  m*/

                Object attached = entityManager.merge(jpaEntity);
                entityManager.remove(attached);
            } catch (PersistenceException e) {
                LOG.error("Could not remove entity: {}", entity);
                throw new ODataDataSourceException("Could not remove entity", e);
            } finally {
                if (transaction.isActive()) {
                    transaction.commit();
                } else {
                    transaction.rollback();
                }
            }
        } else {
            throw new ODataDataSourceException("Could not remove entity, could not be loaded");
        }
    }
}

From source file:org.synyx.hades.dao.orm.GenericJpaDao.java

public void delete(final T entity) {

    EntityManager em = getEntityManager();
    em.remove(em.contains(entity) ? entity : em.merge(entity));
}

From source file:info.san.books.app.model.listener.LivreListener.java

@EventHandler
public void handle(LivreDeletedEvent e) {
    EntityManager em = Persistence.getInstance().createEntityManager();

    EntityTransaction t = em.getTransaction();

    t.begin();/*  www.  j a  v  a2s .c om*/

    LivreEntry entry = em.getReference(LivreEntry.class, e.getIsbn());
    em.remove(entry);

    t.commit();
}

From source file:org.apache.openjpa.jdbc.meta.strats.AbstractLobTest.java

public void testDelete() {
    insert(newLobEntity(createLobData(), 1));
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();/*from  w w  w. j  a  v  a 2s .  c o  m*/
    LobEntity entity = (LobEntity) em.find(getLobEntityClass(), 1);
    em.remove(entity);
    em.getTransaction().commit();
    em.close();
    em = emf.createEntityManager();
    em.getTransaction().begin();
    Query q = em.createQuery(getSelectQuery());
    assertEquals(0, q.getResultList().size());
    em.getTransaction().commit();
    em.close();
}

From source file:ejb.bean.UsuarioDAOJPAImplBean.java

/**Mtodo para a remoo de usurio.
 * @author Richel Sensineli// w  w w  . ja  v  a  2s .  c om
 * @param id int - ID do usurio
 * @throws UsuarioNaoEncontradoException - usurio no encontrado
 */
@Override
public void removeUsuario(final int id) throws UsuarioNaoEncontradoException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory("UsuarioPU");
    EntityManager em = emf.createEntityManager();

    Usuario u = em.find(UsuarioImpl.class, id);

    em.getTransaction().begin();
    if (u == null) {
        throw new UsuarioNaoEncontradoException("usuario no encontrado");
    } else {
        em.remove(u);
        em.getTransaction().commit();
    }
    em.clear();
    em.close();
    emf.close();

}

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

@Override
public void deleteAlbum(final Album album) throws AlbumNotFoundException {
    Assert.notNull(album, "No Album supplied !");
    Assert.notNull(album.getId(), "Id should be set for delete !");

    new TxCallback(this.getEmf()) {

        @Override/*from w ww.j a  v  a  2s. com*/
        protected void executeInTransaction(final EntityManager em) {
            final Album managedAlbum = em.find(Album.class, album.getId(), LockModeType.WRITE);
            if (managedAlbum == null) {
                throw new PictureNotFoundException();
            }

            em.remove(managedAlbum);
        }
    };
}

From source file:org.viafirma.persistencia.dao.GenericEjb3Dao.java

/**
 * Elimina la entidad indicada//from w w  w.  ja v  a 2s.  c  om
 * @throws ExcepcionNoCreado 
 */
public void delete(ID id) throws ExcepcionNoCreado {
    log.finest("Eliminando " + persistentClass + " con identificador " + id);
    EntityManager manager = getEntityManager();
    T entidad = null;
    entidad = manager.find(persistentClass, id);
    if (entidad == null) {
        throw new ExcepcionNoCreado("No se puede eliminar " + id);
    }

    try {

        manager.getTransaction().begin();
        manager.remove(entidad);
        manager.getTransaction().commit();
    } catch (Exception e) {
        log.severe("No se puede eliminar " + entidad + " " + e.getMessage());
        manager.getTransaction().rollback();
    } finally {
        manager.close();
    }
}

From source file:edu.csueb.cs6320.utils.UserService.java

public boolean delete(long userid) {
    EntityManager em = Persistence.createEntityManagerFactory("TestPU").createEntityManager();

    User u = em.find(User.class, userid);
    if (u == null) {
        return false;
    }//from w w  w. j  av  a  2s.  c o m
    em.getTransaction().begin();
    em.remove(u);
    em.getTransaction().commit();
    em.close();

    return true;
}

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

/**
 * Remove object from persistence storage.
 * @param pos the persistent objects to remove
 * @throws org.apache.roller.weblogger.WebloggerException on any error
 */// ww  w  .ja va 2 s  . c  o m
public void removeAll(Collection pos) throws WebloggerException {
    EntityManager em = getEntityManager(true);
    for (Iterator iterator = pos.iterator(); iterator.hasNext();) {
        Object obj = iterator.next();
        em.remove(obj);
    }
}

From source file:com.espirit.moddev.examples.uxbridge.newsdrilldown.test.NewsITCase.java

/**
 * Before test.//from   ww w. j a  v  a 2 s .  c o  m
 *
 * @throws Exception the exception
 */
@Before
public void beforeTest() throws Exception {
    EntityManager em = emf.createEntityManager();
    try {
        Query query = em.createQuery(new StringBuilder().append("SELECT x FROM news x").toString());
        List<News> newsList = query.getResultList();
        for (News news : newsList) {
            em.remove(news);
        }

        query = em.createQuery(new StringBuilder().append("SELECT x FROM category x").toString());
        List<NewsCategory> catList = query.getResultList();
        for (NewsCategory temp : catList) {
            em.remove(temp);
        }

        query = em.createQuery(new StringBuilder().append("SELECT x FROM metaCategory x").toString());
        List<NewsMetaCategory> metaList = query.getResultList();
        for (NewsMetaCategory temp : metaList) {
            em.remove(temp);
        }
    } finally {
        em.close();
    }
}