Examples of com.googlecode.objectify.VoidWork

com.googlecode.objectify.VoidWork
Using Work is annoying because you must return a value from the run() method. Using VoidWork eliminates that annoyance. Unfortunately we can't override the return value of a method so we must rename run() to vrun(). @author Jeff Schnitzer

    if (!isLocked) {
      return;
    }
    
    try {
      Ofy.transactNew(new VoidWork() {


        @Override
        public void vrun() {
          Ofy.delete().type(FieldValueLock.class).id(
              fieldValue).now();

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    final Trivial triv = new Trivial(123L, "foo", 5);


    try (Closeable root = TestObjectifyService.begin()) {


      ofy().transact(new VoidWork() {
        @Override
        public void vrun() {
          ofy().defer().save().entity(triv);


          // Can load out of session
          assertThat(ofy().load().entity(triv).now(), is(triv));


          // But not datastore
          try {
            ds().get(null, Key.create(triv).getRaw());
            assert false : "Entity should not have been saved yet";
          } catch (EntityNotFoundException e) {
            // correct
          }
        }
      });


      {
        Trivial loaded = ofy().load().entity(triv).now();
        assertThat(loaded, equalTo(triv));
      }


      ofy().transact(new VoidWork() {
        @Override
        public void vrun() {
          ofy().defer().delete().entity(triv);


          // Deleted in session

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    final Key<HasSingle> hskey = ofy().save().entity(hs).now();


    ofy().clear();


    // Load hs in a transaction, which will then propagate back to parent session
    ofy().transact(new VoidWork() {
      @Override
      public void vrun() {
        ofy().load().key(hskey).now();
      }
    });

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    final Key<HasSingle> hskey = ofy().save().entity(hs).now();


    ofy().clear();


    // Load hs in a transaction, which will then propagate back to parent session, including the Ref async load
    ofy().transact(new VoidWork() {
      @Override
      public void vrun() {
        ofy().load().group(Single.class).key(hskey).now();
      }
    });

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    final Key<HasSingle> hskey = ofy().save().entity(hs).now();


    ofy().clear();


    // Load hs in a transaction, which will then propagate back to parent session, including the Ref async load
    ofy().transact(new VoidWork() {
      @Override
      public void vrun() {
        ofy().load().group(Single.class).key(hskey).now();
      }
    });

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    Trivial triv = new Trivial("foo", 5);
    final Key<Trivial> tk = ofy().save().entity(triv).now();


    try {
      ofy().transactNew(2, new VoidWork() {
        @Override
        public void vrun() {
          Trivial triv1 = ofy().transactionless().load().key(tk).now();
          Trivial triv2 = ofy().load().key(tk).now();

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  @Test
  public void testTransactionRollback() throws Exception {
    fact().register(Trivial.class);


    try {
      ofy().transact(new VoidWork() {
        @Override
        public void vrun() {
          Trivial triv = new Trivial("foo", 5);
          ofy().save().entity(triv).now();
          throw new RuntimeException();

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   * This is a somewhat clunky way to test this, and requires making impl.getCache() public,
   * but it gets the job done.
   */
  @Test
  public void transactionalObjectifyInheritsCacheSetting() throws Exception {
    ofy().cache(false).transact(new VoidWork() {
      @Override
      public void vrun() {
        // Test in _and out_ of a transaction
        ObjectifyImpl<?> txnlessImpl = (ObjectifyImpl<?>)ofy().transactionless();
        assert !txnlessImpl.getCache();

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  /**
   */
  @Test
  public void executeMethodWorks() throws Exception {
    ofy().execute(TxnType.REQUIRED, new VoidWork() {
      @Override
      public void vrun() {
        assert ofy().load().type(Trivial.class).id(123L).now() == null;
      }
    });

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  final WikiPlace wikiPlace;


  @Override
  public void run() {


    ofy().transact(new VoidWork() {
      @Override
      public void vrun() {
        log.debug("Syncing " + wikiPlace);


        Place place = ofy().load().type(Place.class).id(wikiPlace.getId()).now();

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com.google.appengine.tck.benchmark.ObjectifyBenchmarkTest

com.googlecode.objectify.test.DeferTests

com.googlecode.objectify.test.LoadUpgradeTests

com.googlecode.objectify.test.TransactionTests

com.motomapia.SyncPlaceTask

org.orgama.server.unique.FieldValueLock

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