Example usage for javax.persistence EntityManager persist

Introduction

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

Prototype

public void persist(Object entity);

Source Link

Document

Make an instance managed and persistent.

Usage

From source file:es.us.isa.ideas.utilities.PopulateDatabase.java

public static void main(String[] args) {

    ApplicationContext ctx;/*w  ww .  j av a  2 s  .c o m*/
    EntityManagerFactory emf;
    EntityManager em;
    EntityTransaction et;

    ctx = new ClassPathXmlApplicationContext("utilities/PopulateDatabase.xml");

    emf = Persistence.createEntityManagerFactory("persistenceUnit");
    em = emf.createEntityManager();
    et = em.getTransaction();

    et.begin();
    try {
        for (Entry<String, Object> entry : ctx.getBeansWithAnnotation(Entity.class).entrySet()) {
            em.persist(entry.getValue());
            System.out.println(String.format("Persisting (%s, %s@%d)", entry.getKey(),
                    entry.getValue().getClass().getName(), entry.getValue().hashCode()));
        }
        et.commit();
    } catch (Exception oops) {
        oops.printStackTrace();
        et.rollback();
        oops.printStackTrace();
    } finally {
        if (em.isOpen())
            em.close();
        if (emf.isOpen())
            emf.close();
        ((ClassPathXmlApplicationContext) ctx).close();
    }
}

From source file:pt.souplesse.spark.Server.java

public static void main(String[] args) {
    EntityManagerFactory factory = Persistence.createEntityManagerFactory("guestbook");
    EntityManager manager = factory.createEntityManager();
    JinqJPAStreamProvider streams = new JinqJPAStreamProvider(factory);
    get("/messages", (req, rsp) -> {
        rsp.type("application/json");
        return gson.toJson(streams.streamAll(manager, Message.class).collect(Collectors.toList()));
    });/*from w w w .  j  a  v  a  2s  . com*/
    post("/messages", (req, rsp) -> {
        try {
            Message msg = gson.fromJson(req.body(), Message.class);
            if (StringUtils.isBlank(msg.getMessage()) || StringUtils.isBlank(msg.getName())) {
                halt(400);
            }
            manager.getTransaction().begin();
            manager.persist(msg);
            manager.getTransaction().commit();
        } catch (JsonSyntaxException e) {
            halt(400);
        }
        rsp.type("application/json");
        return gson.toJson(streams.streamAll(manager, Message.class).collect(Collectors.toList()));
    });
    get("/comments", (req, rsp) -> {
        rsp.type("application/json");
        Map<String, List<Body>> body = new HashMap<>();
        try (CloseableHttpClient client = create().build()) {
            String url = String.format("https://api.github.com/repos/%s/events", req.queryMap("repo").value());
            log.info(url);
            body = client.execute(new HttpGet(url), r -> {
                List<Map<String, Object>> list = gson.fromJson(EntityUtils.toString(r.getEntity()), List.class);
                Map<String, List<Body>> result = new HashMap<>();
                list.stream().filter(m -> m.getOrDefault("type", "").equals("IssueCommentEvent"))
                        .map(m -> new Body(((Map<String, String>) m.get("actor")).get("login"),
                                ((Map<String, Map<String, String>>) m.get("payload")).get("comment")
                                        .get("body")))
                        .forEach(b -> result.compute(b.getLogin(), (k, v) -> v == null ? new ArrayList<>()
                                : Lists.asList(b, v.toArray(new Body[v.size()]))));
                return result;
            });
        } catch (IOException e) {
            log.error(null, e);
            halt(400, e.getMessage());
        }
        return gson.toJson(body);
    });
}

From source file:utilities.PopulateDatabase.java

public static void main(String[] args) throws Throwable {
    ApplicationContext applicationContext;
    EntityManagerFactory entityManagerFactory;
    EntityManager entityManager;
    EntityTransaction entityTransaction;

    applicationContext = new ClassPathXmlApplicationContext("classpath:PopulateDatabase.xml");

    entityManagerFactory = Persistence.createEntityManagerFactory(PersistenceUnit);
    entityManager = entityManagerFactory.createEntityManager();
    entityTransaction = entityManager.getTransaction();

    initialise(entityManagerFactory, entityManager);

    entityTransaction.begin();/*from   w  ww .  ja  va2s  .  co m*/
    try {
        for (Entry<String, Object> entry : applicationContext.getBeansWithAnnotation(Entity.class).entrySet()) {
            String beanName;
            DomainEntity entity;

            beanName = entry.getKey();
            entity = (DomainEntity) entry.getValue();
            entityManager.persist(entity);
            System.out.println(String.format("Persisting (%s, %s, %d)", beanName, entity.getClass().getName(),
                    entity.getId()));
        }
        entityTransaction.commit();
    } catch (Exception oops) {
        oops.printStackTrace();
        entityTransaction.rollback();
    } finally {
        if (entityManager.isOpen())
            entityManager.close();
        if (entityManagerFactory.isOpen())
            entityManagerFactory.close();
    }
}

From source file:org.mitre.util.jpa.JpaUtil.java

public static <T, I> T saveOrUpdate(I id, EntityManager entityManager, T entity) {
    if (id == null) {
        entityManager.persist(entity);
        entityManager.flush();//from www . ja v  a 2s .  c o m
        return entity;
    } else {
        T tmp = entityManager.merge(entity);
        entityManager.flush();
        return tmp;
    }
}

From source file:GestoreAccountLocale.GestoreAccountLocale.java

private static void memorizzaAccount(Account account) {
    EntityManagerFactory emf = javax.persistence.Persistence.createEntityManagerFactory("ClientMDBPU");
    EntityManager em = emf.createEntityManager();
    em.getTransaction().begin();//from   w  w  w  .  java2s  . com
    try {
        em.persist(account);
        em.getTransaction().commit();
    } catch (Exception e) {
        em.getTransaction().rollback();
    } finally {
        em.close();
    }
}

From source file:com.impetus.kvapps.runner.ExecutorService.java

/**
 * @param user//  w  w  w  .j a v  a 2 s. c om
 */
private static void persist(User user, final EntityManager em) {
    em.persist(user);
}

From source file:ch.entwine.weblounge.bridge.oaipmh.harvester.LastHarvested.java

/**
 * Save or update a timestamp.//from   w w  w  .j a v a  2  s  . c  o m
 */
public static void update(PersistenceEnv penv, final LastHarvested entity) {
    penv.tx(new Function<EntityManager, Void>() {
        public Void apply(EntityManager em) {
            LastHarvested existing = em.find(LastHarvested.class, entity.getUrl());
            if (existing != null) {
                em.persist(em.merge(entity));
            } else {
                em.persist(entity);
            }
            return null;
        }
    });
}

From source file:org.opencastproject.oaipmh.harvester.LastHarvested.java

/**
 * Save or update a timestamp.//from   w w  w  .  java 2 s.com
 */
public static void update(PersistenceEnv penv, final LastHarvested entity) {
    penv.tx(new Function<EntityManager, Void>() {
        @Override
        public Void apply(EntityManager em) {
            LastHarvested existing = em.find(LastHarvested.class, entity.getUrl());
            if (existing != null) {
                em.persist(em.merge(entity));
            } else {
                em.persist(entity);
            }
            return null;
        }
    });
}

From source file:ch.puzzle.itc.mobiliar.test.PersistingEntityBuilder.java

public static ResourceTypeEntity buildResourceType(EntityManager em, String name) {
    ResourceTypeEntity type = new ResourceTypeEntity();
    type.setName(name);//from   ww w.j a  v a  2s . c  o m
    em.persist(type);
    return type;
}

From source file:com.autentia.common.util.ejb.EntityManagerUtils.java

/**
 * Saves an entity in the persistence layer. If the entity doesn't exist, this method inserts the entity. If the
 * entity already exists in the persistence layer, this method updates the entity.
 * <p>//w  w  w. j  a va  2  s  . com
 * Usage example: <code>save(em, company, company.getId())</code>
 * 
 * @param em the {@link EntityManager} where the inserto or update will be executed.
 * @param entity the entity to save.
 * @param id the primary key of the entity.
 */
public static void save(EntityManager em, Object entity, Object id) {
    if (id == null) {
        em.persist(entity);
    } else if (!em.contains(entity)) {
        em.merge(entity);
    }
}