Examples of com.google.appengine.api.datastore.DatastoreService.beginTransaction()

Package com.google.appengine.api.datastore

Class com.google.appengine.api.datastore.DatastoreService

Examples of com.google.appengine.api.datastore.DatastoreService.beginTransaction()

com.google.appengine.api.datastore.DatastoreService.beginTransaction()
Equivalent to {@code beginTransaction(TransactionOptions.Builder.withDefaults())}. @return the {@code Transaction} that was started. @throws DatastoreFailureException If a datastore error occurs. @see #beginTransaction(TransactionOptions)

           public static void transUpdate(String kind,Hashtable columns,long id,Key pk,jiqlConnection conn)throws Exception
  {




DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
 Transaction trans = datastore.beginTransaction();
 conn.setTransaction(trans);


          Key key = KeyFactory.createKey(pk,kind,id);
        Entity e = datastore.get(key);
     Enumeration en = columns.keys();

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try{ 
         //(entit + " put 2 " + columns);
//          EntityManager em = EMF.get().createEntityManager();
//Entity  tx = em.get ();


  Transaction trans = datastore.beginTransaction()  ;
  boolean suc = false;




try{

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  }
  
  public static Transaction getTransaction(){
  
  DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
  Transaction trans = datastore.beginTransaction()  ;
  return trans;
  }
  
    public static DatastoreService getDatastoreService(){

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try{ 
  //        EntityManager em = EMF.get().createEntityManager();
//EntityTransaction tx = em.getTransaction();
           DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();


  Transaction trans = datastore.beginTransaction()  ;
boolean suc = false;
try{


//tx.begin();

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    if (!sqp.getConnection().getAutoCommit()){
      try{
      
      //(" WRUIT TAB ROW ? " + hash);
            DatastoreService datastore = JIQLGDataUtil.getDatastoreService();
           Transaction trans = datastore.beginTransaction(); 
           sqp.getConnection().setTransaction(trans);
           rid = JIQLGDataUtil.put(tn,hash,pk,datastore,trans);
      }finally{
        return ;
      }

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    _logger.info("Key to add names for: " + key);
    
    DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();


    Transaction txn = datastoreService.beginTransaction();
    
    try {
      Entity entity = datastoreService.get(txn, key);
      
      @SuppressWarnings("unchecked")

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    _logger.info("Key to add names for: " + key);
    
    DatastoreService datastoreService = DatastoreServiceFactory.getDatastoreService();


    Transaction txn = datastoreService.beginTransaction();
    
    try {
      Entity entity = datastoreService.get(txn, key);
      
      @SuppressWarnings("unchecked")

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        DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
        DatastoreTimeoutException dte = null;
        long wait = INITIAL_WAIT_MS;
        for (int i = 0; i < MAX_RETRY; i++) {
            try {
                return ds.beginTransaction();
            } catch (DatastoreTimeoutException e) {
                dte = e;
                logger.log(Level.INFO, "RETRY["
                    + i
                    + "] This message is just INFORMATION["

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      Key k3 = KeyFactory.createKey(UsuarioLN.class.getSimpleName(),
          idUsuarioHijo);
      Key k4 = KeyFactory.createKey(k3, ListaEventoLN.class
          .getSimpleName(), idEventoHijo);


      tx = datastore.beginTransaction();


      ListaEventoLN eventoPadre = pm.getObjectById(ListaEventoLN.class,
          k2);
      eventoPadre.setEstado("T");
      tx.commit();

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      ListaEventoLN eventoPadre = pm.getObjectById(ListaEventoLN.class,
          k2);
      eventoPadre.setEstado("T");
      tx.commit();


      tx = datastore.beginTransaction();
      ListaEventoLN eventoHijo = pm
          .getObjectById(ListaEventoLN.class, k4);
      eventoHijo.setEstado("T");
      tx.commit();

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