Package javax.persistence

Examples of javax.persistence.EntityManager

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    @Test
    public void loadDocumentById() throws Exception {
        new FacesRequest() {

            protected void invokeApplication() throws Exception {
                EntityManager em = (EntityManager) getInstance("restrictedEntityManager");
                WikiDocument d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d where d.id = :id")
                                .setParameter("id", 6l)
                                .getSingleResult();
                assert d.getName().equals("One");
            }
        }.run();
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    @Test
    public void updateDocumentById() throws Exception {
        new FacesRequest() {

            protected void invokeApplication() throws Exception {
                EntityManager em = (EntityManager) getInstance("restrictedEntityManager");
                WikiDocument d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d where d.id = :id")
                                .setParameter("id", 6l)
                                .getSingleResult();
                d.setName("One2");
                em.flush();

                em.clear();
                d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d where d.id = :id")
                                .setParameter("id", 6l)
                                .getSingleResult();
                assert d.getName().equals("One2");
                assert d.getLastModifiedBy() != null;
                assert d.getLastModifiedOn() != null;
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    @Test
    public void deleteDocumentById() throws Exception {
        new FacesRequest() {

            protected void invokeApplication() throws Exception {
                EntityManager em = (EntityManager) getInstance("restrictedEntityManager");

                WikiDocument d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d left join fetch d.incomingLinks where d.id = :id")
                                .setParameter("id", 8l)
                                .getSingleResult();
                assert d.getIncomingLinks().size() == 1;

                em.clear();

                d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d left join fetch d.incomingLinks where d.id = :id")
                                .setParameter("id", 9l)
                                .getSingleResult();
                assert d.getIncomingLinks().size() == 1;

                em.clear();

                d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d where d.id = :id")
                                .setParameter("id", 7l)
                                .getSingleResult();

                assert d.getOutgoingLinks().size() == 2;

                em.remove(d);
                em.flush();

                try {
                    d = null;
                    d = (WikiDocument)
                            em.createQuery("select d from WikiDocument d where d.id = :id")
                                    .setParameter("id", 7l)
                                    .getSingleResult();
                } catch (Exception ex) {} finally {
                    assert d == null;
                }

                em.clear();

                d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d left join fetch d.incomingLinks where d.id = :id")
                                .setParameter("id", 8l)
                                .getSingleResult();
                assert d.getIncomingLinks().size() == 0;

                em.clear();

                d = (WikiDocument)
                        em.createQuery("select d from WikiDocument d left join fetch d.incomingLinks where d.id = :id")
                                .setParameter("id", 9l)
                                .getSingleResult();
                assert d.getIncomingLinks().size() == 0;

            }
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    @Test
    public void insertDocumentById() throws Exception {
        new FacesRequest() {

            protected void invokeApplication() throws Exception {
                EntityManager em = (EntityManager) getInstance("restrictedEntityManager");
                WikiDirectory d = (WikiDirectory)
                        em.createQuery("select d from WikiDirectory d where d.id = :id")
                                .setParameter("id", 3l)
                                .getSingleResult();

                WikiDocument newDoc = new WikiDocument();
                newDoc.setName("Four");
                newDoc.setWikiname("Four");
                newDoc.setAreaNumber(d.getAreaNumber());
                newDoc.setCreatedBy(em.find(User.class, 1l));
                newDoc.setContent("Testdocument Four");
                newDoc.setParent(d);

                em.persist(newDoc);
                em.flush();

                em.clear();
                WikiDocument doc = (WikiDocument)
                        em.createQuery("select d from WikiDocument d where d.id = :id")
                                .setParameter("id", newDoc.getId())
                                .getSingleResult();
                assert doc.getName().equals("Four");
                assert doc.getParent().getId().equals(d.getId());
                assert doc.getAreaNumber().equals(d.getAreaNumber());
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    public void loadIndexedEntities() throws Exception {

        SearchRegistry registry = (SearchRegistry)Component.getInstance(SearchRegistry.class);
        indexedEntities = registry.getSearchableEntities();

        EntityManager em = (EntityManager) Component.getInstance("entityManager");

        for (SearchableEntity indexedEntity : indexedEntities) {
            DirectoryProvider dirProvider = ((FullTextSession)em.getDelegate()).getSearchFactory().getDirectoryProviders(indexedEntity.getClazz())[0];
            IndexReader reader = IndexReader.open(dirProvider.getDirectory());

            indexedEntity.setNumOfIndexedDocuments(reader.numDocs());

            TermEnum te = reader.terms();
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        String parentConversation = new FacesRequest("/page.xhtml") {
            @Override
            protected void invokeApplication() throws Exception {
                Thing thing = new Thing();
                thing.setName("thing");
                EntityManager entityManager = (EntityManager) getValue("#{entityManager}");
                entityManager.persist(thing);
                Contexts.getConversationContext().set("thing", thing);
                Manager.instance().beginConversation();
            }
        }.run();


        new FacesRequest("/page.xhtml", parentConversation) {
        }.run();

        // nested conversation
        String nestedId = new FacesRequest("/page.xhtml", parentConversation) {
            @Override
            protected void invokeApplication() throws Exception {
                Manager.instance().beginNestedConversation();
            }
        }.run();

        // update entity in nested conversation
        new FacesRequest("/page.xhtml", nestedId) {
            @Override
            protected void invokeApplication() throws Exception {
                Thing thing = (Thing) Contexts.getConversationContext().get("thing");
                thing.setName("foo");
                EntityManager entityManager = (EntityManager) getValue("#{entityManager}");
                entityManager.flush();
            }
        }.run();

        // end nested conversation
        assert new FacesRequest("/page.xhtml", nestedId) {
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        final String conversation1 = new FacesRequest("/page.xhtml") {
            @Override
            protected void invokeApplication() throws Exception {
                Thing thing = new Thing();
                thing.setName("thing");
                EntityManager entityManager = (EntityManager) getValue("#{entityManager}");
                entityManager.persist(thing);
                holder.put("id", thing.getId());
                Contexts.getConversationContext().set("thing", thing);
                Manager.instance().beginConversation();
            }
        }.run();

        new FacesRequest("/page.xhtml", conversation1) {
        }.run();

        // update in second conversation
        new FacesRequest("/page.xhtml") {
            @Override
            @SuppressWarnings("cast")
            protected void invokeApplication() throws Exception {
                EntityManager entityManager = (EntityManager) getValue("#{entityManager}");
                Thing thing = (Thing) entityManager.find(Thing.class, holder.get("id"));
                thing.setName("foo");
                entityManager.flush();
            }
        }.run();

        try {
            new FacesRequest("/page.xhtml", conversation1) {
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  public CriteriaBuilderTest(String name){
    super(name);
  }

  final public void testCriteriaBuilder() throws Exception{
    EntityManager em = getEntityManager();
    EntityTransaction tx = em.getTransaction();
    tx.begin();
    CriteriaBuilder cb = em.getCriteriaBuilder();
    CriteriaQuery<Configuration> cq = cb.createQuery(Configuration.class);
    Root<Configuration> c = cq.from(Configuration.class);
    Predicate condition = cb.equal(c.get("deleted"), "false");
    cq.where(condition);
    TypedQuery<Configuration> q = em.createQuery(cq);
    List<Configuration> result = q.getResultList();
    try {
      tx.commit();
      assertTrue("result should be empty", result.size()==0);
    } catch (Exception e) {
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    /**
     * Gets EntityManager instance for current thread
     * @return entityManager
     */
    public static EntityManager getEntityManager() {
        EntityManager em = entityManager.get();

        // Create a new EntityManager
        if (em == null) {
            em = getEntityManagerFactory().createEntityManager();
            entityManager.set(em);
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    /**
     * Close EntityManager instance
     */
    public static void closeEntityManager() {
        EntityManager em = entityManager.get();
        entityManager.set(null);
        if (em != null) {
            em.close();
        }
    }
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