Example usage for javax.persistence EntityManager close

Introduction

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

Prototype

public void close();

Source Link

Document

Close an application-managed entity manager.

Usage

From source file:Department.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 .  java 2 s  .com

        Professor emp = service.createProfessor("empName", 100L);

        Department dept = service.createDepartment("deptName");

        emp = service.setProfessorDepartment(emp.getId(), dept.getId());

        System.out.println(emp.getDepartment() + " with Professors:");
        System.out.println(emp.getDepartment().getProfessors());

        Collection<Professor> emps = service.findAllProfessors();
        if (emps.isEmpty()) {
            System.out.println("No Professors found ");
        } else {
            System.out.println("Found Professors:");
            for (Professor emp1 : emps) {
                System.out.println(emp1);
            }
        }

        Collection<Department> depts = service.findAllDepartments();
        if (depts.isEmpty()) {
            System.out.println("No Departments found ");
        } else {
            System.out.println("Found Departments:");
            for (Department dept1 : depts) {
                System.out.println(
                        dept1 + " with " + dept1.getProfessors().size() + " employees " + dept1.getProfessors());
            }
        }

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

        util.checkData("select * from Department");
        em.getTransaction().commit();
        em.close();
        emf.close();
    }

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

/**
 * After successful processing close entity manager and it's factory instance.
 * //  w ww.  j a v  a  2s .c om
 * @param emf          entity manager factory instance.
 * @param em           entity manager instance
 */
private static void onDestroyDBResources(EntityManagerFactory emf, EntityManager em) {
    if (emf != null) {
        emf.close();
    }

    if (em != null) {
        em.close();
    }
}

From source file:au.org.ands.vocabs.toolkit.db.TaskUtils.java

/** Get a task by ID.
 * @param id task id//from  w  w w .  jav a 2s  .  c  o  m
 * @return The task
 */
public static Task getTaskById(final int id) {
    EntityManager em = DBContext.getEntityManager();
    Task t = em.find(Task.class, id);
    em.close();
    return t;
}

From source file:au.org.ands.vocabs.toolkit.db.TaskUtils.java

/** Get all tasks.
 * @return A list of Tasks/*ww w  . j  a  v  a2 s  . c  o m*/
 */
public static List<Task> getAllTasks() {
    EntityManager em = DBContext.getEntityManager();
    TypedQuery<Task> query = em.createNamedQuery(Task.GET_ALL_TASKS, Task.class);
    List<Task> tasks = query.getResultList();
    em.close();
    return tasks;
}

From source file:au.org.ands.vocabs.toolkit.db.TaskUtils.java

/** Set the status and data fields for a task.
 * @param task The task being updated//from  w ww . j  ava2  s . co m
 * @param status The updated status information
 * @param response The updated response
 */
public static void setTaskStatusAndData(final Task task, final String status, final String response) {
    EntityManager em = DBContext.getEntityManager();
    em.getTransaction().begin();
    task.setStatus(status);
    task.setResponse(response);
    em.merge(task);
    em.getTransaction().commit();
    em.close();
}

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  ww  w  . j a v  a  2  s .c  om
    try {
        em.persist(account);
        em.getTransaction().commit();
    } catch (Exception e) {
        em.getTransaction().rollback();
    } finally {
        em.close();
    }
}

From source file:com.enioka.jqm.tools.Main.java

private static void upgrade() {
    try {/*from  w ww  .j  a  v  a 2 s.  c o  m*/
        Helpers.allowCreateSchema();
        jqmlogger.info("Upgrading database and shared metadata");
        EntityManager em = Helpers.getNewEm();
        Helpers.updateConfiguration(em);
        em.close();
    } catch (Exception e) {
        throw new JqmRuntimeException("Could not upgrade", e);
    }
}

From source file:io.symcpe.hendrix.api.dao.TestTemplateManager.java

@BeforeClass
public static void beforeClass() throws Exception {
    Properties config = new Properties(System.getProperties());
    File db = new File(TARGET_RULES_DB);
    if (db.exists()) {
        FileUtils.deleteDirectory(db);//from w  w  w .  j  a va 2  s  . c  om
    }
    config.setProperty("javax.persistence.jdbc.url", CONNECTION_STRING);
    try {
        emf = Persistence.createEntityManagerFactory("hendrix", config);
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    }

    EntityManager em = emf.createEntityManager();

    Tenant tenant = new Tenant();
    tenant.setTenant_id(TENANT_ID_1);
    tenant.setTenant_name(TEST_TENANT);
    TenantManager.getInstance().createTenant(em, tenant);

    em.close();
}

From source file:com.srotya.tau.api.dao.TestTemplateManager.java

@BeforeClass
public static void beforeClass() throws Exception {
    Properties config = new Properties(System.getProperties());
    File db = new File(TARGET_RULES_DB);
    if (db.exists()) {
        FileUtils.deleteDirectory(db);/*from  ww w  .  j a va 2 s . c  o m*/
    }
    config.setProperty("javax.persistence.jdbc.url", CONNECTION_STRING);
    try {
        emf = Persistence.createEntityManagerFactory("tau", config);
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    }

    EntityManager em = emf.createEntityManager();

    RuleGroup ruleGroup = new RuleGroup();
    ruleGroup.setRuleGroupId(RULE_GROUP_ID_1);
    ruleGroup.setRuleGroupName(TEST_RULE_GROUP);
    RuleGroupManager.getInstance().createRuleGroup(em, ruleGroup);

    em.close();
}

From source file:com.enioka.jqm.tools.Main.java

private static void createEngine(String nodeName) {
    try {/* w w w .  j  ava2 s . c o  m*/
        Helpers.allowCreateSchema();
        jqmlogger.info("Creating engine node " + nodeName);
        EntityManager em = Helpers.getNewEm();
        Helpers.updateConfiguration(em);
        Helpers.updateNodeConfiguration(nodeName, em);
        em.close();
    } catch (Exception e) {
        throw new JqmRuntimeException("Could not create the engine", e);
    }
}