Example usage for javax.persistence EntityManagerFactory createEntityManager

Introduction

In this page you can find the example usage for javax.persistence EntityManagerFactory createEntityManager.

Prototype

public EntityManager createEntityManager();

Source Link

Document

Create a new application-managed EntityManager.

Usage

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

public static void main(String[] args) {

    ApplicationContext ctx;/*  w w w  .  ja va  2s.c  om*/
    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:BadProfessor.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();//  ww  w  .j a  v  a 2s .  c om

        BadProfessor emp2 = new BadProfessor();
        emp2.setId(2);

        emp2.setName("bad");

        service.createProfessor(emp2);

        System.out.println("Professors: ");
        for (Professor emp1 : service.findAllProfessors()) {
            System.out.print(emp1);
        }

        util.checkData("select * from BAD_EMP");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

From source file:Professor.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();/*from   w w  w  .j a  va 2 s  .  c om*/

        service.createProfessor(1, "name");
        for (Professor emp : service.findAllProfessors()) {
            System.out.print(emp);
        }
        service.changeProfessorName(1, "newname");
        for (Professor emp : service.findAllProfessors()) {
            System.out.print(emp);
        }
        service.removeProfessor(1);

        for (Professor emp : service.findAllProfessors()) {
            System.out.print(emp);
        }

        util.checkData("select * from Professor");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

From source file:Professor.java

  public static void main(String[] a) throws Exception {
  JPAUtil util = new JPAUtil();

  EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
  EntityManager em = emf.createEntityManager();
  ProfessorService service = new ProfessorService(em);

  em.getTransaction().begin();/* w  w  w. jav  a2 s.  co  m*/
  Professor emp = service.createProfessor(158, "AAA", 45000,ProfessorType.CONTRACT_EMPLOYEE);
  em.getTransaction().commit();
  System.out.println("Persisted " + emp);

  util.checkData("select * from Professor");

  // remove an employee
  em.getTransaction().begin();
  service.removeProfessor(158);
  em.getTransaction().commit();
  System.out.println("Removed Professor 158");

  util.checkData("select * from Professor");
    
  em.close();
  emf.close();
}

---

From source file:org.isatools.isatab.commandline.ReindexShellCommand.java

public static void main(String[] args) {

    try {// w w w  .  j  a  v  a2s  . c om
        Options clopts = createCommonOptions();

        CommandLine cmdl = AbstractImportLayerShellCommand.parseCommandLine(clopts, args,
                ReindexShellCommand.class);

        args = cmdl.getArgs();
        setup(args);
        setupLog4JPath(cmdl, null);

        // Need to initialize this here, otherwise above config will fail
        log = Logger.getLogger(ReindexShellCommand.class);

        Properties hibProps = AbstractImportLayerShellCommand.getHibernateProperties();
        EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("BIIEntityManager",
                hibProps);
        EntityManager entityManager = entityManagerFactory.createEntityManager();
        BIIObjectStore store = new BIIObjectStore();
        PermissionManager permMgr = new PermissionManager(entityManager);

        List<Study> studies = permMgr.getStudies();
        if (studies == null || studies.size() == 0) {
            log.info("No study in the BII DB");
        } else {
            for (Study s : studies) {
                store.put(Study.class, s.getAcc(), s);
            }
        }
        PersistenceShellCommand.reindexStudies(store, hibProps);
        log.info("\n");

        System.exit(0);
    } catch (Exception ex) {
        String msg = "ERROR: problem while reindexing the BII DB: " + ex.getMessage();
        if (log == null) {
            out.println(msg + "\n");
            ex.printStackTrace();
        } else {
            log.fatal(msg, ex);
        }
        System.exit(1);
    }
}

---

From source file:Professor.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();//from  w  w  w. j a  v a  2 s  .c om

        service.createProfessor("country", 1, "name", 100);

        Professor emp = service.findProfessor("country", 1);
        System.out.println("Found " + emp);

        System.out.println("Professors:");
        for (Professor emp1 : service.findAllProfessors()) {
            System.out.println(emp1);
        }

        util.checkData("select * from Professor");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

From source file:BadProfessor.java

  public static void main(String[] a) throws Exception {
  JPAUtil util = new JPAUtil();

  EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
  EntityManager em = emf.createEntityManager();
  ProfessorService service = new ProfessorService(em);

  em.getTransaction().begin();//from  w w w  .ja v  a 2 s  .c  om

  BadProfessor emp2 = new BadProfessor();
  emp2.setId(2);

  emp2.setName("bad");
    
  service.createProfessor(emp2);

  System.out.println("Professors: ");
  for (Professor emp1 : service.findAllProfessors()) {
    System.out.print(emp1);
  }

  util.checkData("select * from EMP");

  em.getTransaction().commit();
  em.close();
  emf.close();
}

---

From source file:org.isatools.isatab.commandline.UserDelShellCommand.java

public static void main(String[] args) {

    try {//from   w ww. j  a v  a  2  s .co m
        Options clopts = createCommonOptions();

        CommandLine cmdl = AbstractImportLayerShellCommand.parseCommandLine(clopts, args,
                UserDelShellCommand.class);

        args = cmdl.getArgs();
        if (args == null || args.length != 1) {
            printUsage(clopts);
            System.exit(1);
        }

        setup(args);
        setupLog4JPath(cmdl, null);

        // Need to initialize this here, otherwise above config will fail
        log = Logger.getLogger(UserDelShellCommand.class);

        Properties hibProps = AbstractImportLayerShellCommand.getHibernateProperties();
        hibProps.setProperty("hibernate.search.indexing_strategy", "event");
        hibProps.setProperty("hibernate.hbm2ddl.auto", "update");
        hibProps.setProperty("hbm2ddl.drop", "false");

        EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("BIIEntityManager",
                hibProps);
        EntityManager entityManager = entityManagerFactory.createEntityManager();

        EntityTransaction transaction = entityManager.getTransaction();
        transaction.begin();

        PermissionManager permMgr = new PermissionManager(entityManager);
        permMgr.deleteUser(args[0]);

        transaction.commit();
        entityManager.close();

        log.info("User deleted.");
        log.info("\n");

        System.exit(0);
    } catch (Exception ex) {
        String msg = "ERROR: problem while running the Permission Manager: " + ex.getMessage();
        if (log == null) {
            out.println(msg + "\n");
            ex.printStackTrace();
        } else {
            log.fatal(msg, ex);
        }
        System.exit(1);
    }
}

---

From source file:org.isatools.isatab.commandline.PermModShellCommand.java

public static void main(String[] args) {

    try {//  w  w w. j ava2s . c o m
        Options clopts = createCommonOptions();
        PermissionManager.createPermModOptions(clopts);

        if (args == null || args.length == 0) {
            printUsage(clopts);
            System.exit(1);
        }

        CommandLine cmdl = AbstractImportLayerShellCommand.parseCommandLine(clopts, args,
                PermModShellCommand.class);

        args = cmdl.getArgs();
        setup(args);

        setupLog4JPath(cmdl, null);
        // Need to initialize this here, otherwise above config will fail
        log = Logger.getLogger(PermModShellCommand.class);

        Properties hibProps = AbstractImportLayerShellCommand.getHibernateProperties();
        hibProps.setProperty("hibernate.search.indexing_strategy", "event");
        hibProps.setProperty("hibernate.hbm2ddl.auto", "update");
        hibProps.setProperty("hbm2ddl.drop", "false");

        EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("BIIEntityManager",
                hibProps);
        EntityManager entityManager = entityManagerFactory.createEntityManager();

        EntityTransaction transaction = entityManager.getTransaction();
        transaction.begin();

        PermissionManager permMgr = new PermissionManager(entityManager);
        permMgr.setStudyOwners(cmdl);
        permMgr.setVisibility(cmdl);

        transaction.commit();
        entityManager.close();

        log.info("\n");

        System.exit(0);
    } catch (Exception ex) {
        String msg = "ERROR: problem while running the Permission Manager: " + ex.getMessage();
        if (log == null) {
            out.println(msg + "\n");
            ex.printStackTrace();
        } else {
            log.fatal(msg, ex);
        }
        System.exit(1);
    }
}

---

From source file:Professor.java

public static void main(String[] a) throws Exception {
        JPAUtil util = new JPAUtil();

        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ProfessorService");
        EntityManager em = emf.createEntityManager();
        ProfessorService service = new ProfessorService(em);

        em.getTransaction().begin();/*from   w  ww .  j ava2  s  . c om*/

        service.createProfessor("country", 1, "name");
        System.out.println("Professors:");
        for (Professor emp : service.findAllProfessors()) {
            System.out.print(emp);
            System.out.print(emp.getManager());
        }

        util.checkData("select * from Professor");

        em.getTransaction().commit();
        em.close();
        emf.close();
    }

---

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