Example usage for javax.persistence EntityManager getTransaction

Introduction

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

Prototype

public EntityTransaction getTransaction();

Source Link

Document

Return the resource-level EntityTransaction object.

Usage

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();

        service.findAllProfessors();/*from   www. j ava  2s.  co m*/

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

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

From source file:Message.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();

        service.messageCreateAndList();/*  w  w  w .  j  a v a2  s.c  o m*/

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

        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();
  Professor emp = service.createProfessor("AAA", 45000);
  em.getTransaction().commit();/* w w w . ja v  a  2  s .  c o  m*/
  System.out.println("Persisted " + emp);

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

    
  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();

        //service.removeDepartment2();

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

        em.getTransaction().commit();//  ww w. j  av  a  2 s  .  c om
        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();

        service.lockAllProfessors();//w  ww .j  a  v  a  2s  .c om

        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();
        util.executeSQLCommand("CREATE SEQUENCE Emp_Seq;");

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

        em.getTransaction().begin();
        Professor emp = service.createProfessor("name", 100);
        em.getTransaction().commit();//from  ww w.  j ava 2 s.c o  m
        System.out.println("Persisted " + emp);

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

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

From source file:Main.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();

  service.findAll();/*w ww  .ja va 2 s  .  c om*/
    
    
  util.checkData("select * from Professor");
  util.checkData("select * from Department");

    
  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();

        Professor emp = service.createProfessor(1, "name", 100);
        emp = service.createProfessor(2, "name 2", 100);

        Collection emps = em.createQuery("SELECT e FROM Professor e").getResultList();
        for (Iterator i = emps.iterator(); i.hasNext();) {
            Professor e = (Professor) i.next();
            System.out.println("Professor " + e.getId() + ", " + e.getName());
        }//from   w  ww . j ava 2 s  . co  m
        util.checkData("select * from Professor");

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

From source file:ContractProfessor.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();

  Professor emp = null;//from   ww  w . j  a  va  2  s.c  o m
  emp = new ContractProfessor();

  emp.setId(1);
  emp.setName("name");
  service.createProfessor(emp);

  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: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();
        Professor emp = service.createProfessor(158, "AAA", 45000);
        em.getTransaction().commit();//from  w  ww  .j a v  a2  s .com
        System.out.println("Persisted " + emp);

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

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

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

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