Examples of javax.jdo.Transaction.begin()

javax.jdo.Transaction.begin()
Begin a transaction. The type of transaction is determined by the setting of the Optimistic flag. @see #setOptimistic @see #getOptimistic @throws JDOUserException if transactions are managed by a containerin the managed environment, or if the transaction is already active.

    /** */
    private void runTestRetrieveAllWithCollectionDFGfalse(PersistenceManager pm) {
        createObjects(pm);
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            Collection coll = new ArrayList();
            coll.add(p1);
            coll.add(p3);
            coll.add(rect);
            pm.retrieveAll(coll, false);

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    /** */
    private void runTestRetrieveAllWithArray(PersistenceManager pm) {
        createObjects(pm);
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            Object[] objs = new Object[3];
            objs[0] = p1;
            objs[1] = p3;
            objs[2] = rect;
            pm.retrieveAll(objs);

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    /** */
    private void runTestRetrieveAllWithArrayDFGtrue(PersistenceManager pm) {
        createObjects(pm);
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            Object[] objs = new Object[3];
            objs[0] = p1;
            objs[1] = p3;
            objs[2] = rect;
            pm.retrieveAll(objs, true);

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    /** */
    private void runTestRetrieveAllWithArrayDFGfalse(PersistenceManager pm) {
        createObjects(pm);
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            Object[] objs = new Object[3];
            objs[0] = p1;
            objs[1] = p3;
            objs[2] = rect;
            pm.retrieveAll(objs, false);

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    /** */
    private void createObjects(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.setRetainValues(false);
            tx.begin();
            p1   = new PCPoint(1,1);
            p1print = p1.toString();
            p2   = new PCPoint(2,2);
            p3   = new PCPoint2(3,3);
            rect = new PCRect(100, p1, p2);

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     * @return a List including all persistent Employee instances
     */
    protected List getAllEmployees(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        try {
            tx.begin();
            List allEmployees = (List)pm.newQuery(Employee.class).execute();
            tx.commit();
            return allEmployees;
        } finally { 
            if ((tx != null) && tx.isActive()) {

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  public static SpadgerUser findSpadgerUser(String id) {
    SpadgerUser user = null;
    PersistenceManager pm = PMF.get().getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
      tx.begin();
      user = pm.getObjectById(SpadgerUser.class, id);
    } catch (JDOObjectNotFoundException e) {
      user = new SpadgerUser();
      user.id = id;
      user.email = id;

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    try{
      pm = pmf.getPersistenceManager();
      Transaction tx = pm.currentTransaction();
      Count c = null;
      try{
        tx.begin();
        try{
          c = pm.getObjectById(Count.class, ViewConstants.PRIMARYKEY_ID);
        }catch(Exception e){
          log.log(Level.INFO, "Count 取得中例外", e);
          c = new Count();

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  public static void deleteAll(Collection objectsToDelete)
  {
    PersistenceManager pm = PMF.get().getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
      tx.begin();
      pm.deletePersistentAll(objectsToDelete);
      tx.commit();
      
      for(Object obj: objectsToDelete)
      {

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    try{
      pm = pmf.getPersistenceManager();
      Transaction tx = pm.currentTransaction();
      Count c = null;
      try{
        tx.begin();
        try{
          c = pm.getObjectById(Count.class, ViewConstants.PRIMARYKEY_ID);
        }catch(Exception e){
          log.log(Level.INFO, "Count 取得中例外", e);
          c = new Count();

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