Examples of com.google.code.gaeom.ObjectStoreSession

com.google.code.gaeom.ObjectStoreSession
The main point of interaction with the framework, ObjectStoreSession is typically scoped at the request level. Within an ObjectStoreSession, object identity will be guaranteed consistent. That is, if you retrieve an object and then, by virtue of a future query retrieve the same object, the framework will return the same instance rather than a duplicate copy. Each ObjectStoreSession is associated with an ObjectStore that caches all of the mapping metadata and the {@link com.google.code.gaeom.annotation.Cached} annotated instances. @author Peter Murray


  @Test
  public void testRefreshMultipleKeys2()
  {
    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();
    X x1 = new X();
    x1.blah = "fred1";
    X x2 = new X();
    x2.blah = "fred2";
    X x3 = new X();
    x3.blah = "fred3";
    List<Key> keys = oss.store(x1, x2, x3).now();
    x1.blah = null;
    x2.blah = null;
    x3.blah = null;


    // without refresh
    List<X> same = Lists.newArrayList(oss.load(keys).<X> now());
    assertNull(same.get(0).blah);
    assertNull(same.get(1).blah);
    assertNull(same.get(2).blah);


    List<X> list = Lists.newArrayList(oss.refresh(same).now());


    assertEquals(x1, list.get(0));
    assertEquals(x2, list.get(1));
    assertEquals(x3, list.get(2));

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  @Test
  public void testLoadSingleParentedStringId()
  {
    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();
    X parent = new X();
    oss.store(parent).now();
    oss.store(new X()).id("a").parent(parent).now();


    assertEquals(X.class, oss.load(X.class).id("a").parent(parent).now().getClass());
  }

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  @Test
  public void testLoadMultipleParentedStringId()
  {
    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();
    X parent = new X();
    oss.store(parent).now();
    oss.store(new X(), new X(), new X()).ids("a", "b", "c").parent(parent).now();


    assertEquals(3, oss.load(X.class).ids("a", "b", "c").parent(parent).now().size());
  }

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  {
    TestCache tc = new TestCache();
    tc.name = "Fred";
    
    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss1 = os.beginSession();
    
    Key key = oss1.store(tc).now();
    
    ObjectStoreSession oss2 = os.beginSession();


    TestCache tc2 = (TestCache)oss2.load(key).now();
    
    assertTrue("same instance", tc == tc2);
  }

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  }
  
  @Test
  public void testGeneratedIdField()
  {
    ObjectStoreSession oss = ObjectStore.Factory.create().beginSession();
    
    LongId o = new LongId();
    o.name = "Fred";
    oss.store(o).now();
    
    assertNotNull(o.id);
    Long id = o.id;
    
    o.id = null;
    o.name = null;
    
    oss.refresh(o).now();
    
    assertEquals(id, o.id);
    assertEquals("Fred", o.name);
  }

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    a.name = "Fred";
    a.b.name = "Flintstone";


    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();


    Key key = oss.store(a).now();


    ObjectStoreSession oss2 = os.beginSession();


    A a2 = (A) oss2.load(key).now();


    assertEquals(a.name, a2.name);
    assertNotNull(a2.b);
    assertEquals(a.b.name, a2.b.name);
  }

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    a.name = "Fred";
    a.b.name = "Flintstone";


    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();


    Key key = oss.store(a).now();
    oss.delete(a.b).now();


    ObjectStoreSession oss2 = os.beginSession();


    oss2.load(key).retries(1).now();
    assertTrue(false);
  }

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    family.addChild(new Person("Sam"));
    family.addChild(new Person("Maggie"));
    family.addChild(new Person("Katy"));


    ObjectStore os = ObjectStore.Factory.create();
    ObjectStoreSession oss = os.beginSession();


    Key key = oss.store(family).now();


    ObjectStoreSession oss2 = os.beginSession();


    Family family2 = (Family) oss2.load(key).now();


    assertEquals(family.name, family2.name);
    assertEquals(family.heads.size(), family2.heads.size());
    assertEquals(family.children.size(), family2.children.size());
    assertEquals(family.heads.get(0).name, family2.heads.get(0).name);

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  }


  @Before
  public void load()
  {
    ObjectStoreSession oss = ObjectStore.Factory.create().beginSession();
    oss.store(allPeople).now();
  }

View Full Code Here

  }


  @Test
  public void testFindAll()
  {
    ObjectStoreSession oss = ObjectStore.Factory.create().beginSession();
    List<Person> people = Lists.newArrayList(oss.find(Person.class).now());
    assertEquals(allPeople, people);
  }

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