Examples of com.mongodb.DBRef

com.mongodb.DBRef
overrides DBRefBase to understand a BSONObject representation of a reference. @dochub dbrefs


        if (value == null) {
          return;
        }


        DBRef dbref = value instanceof DBRef ? (DBRef) value : null;


        DbRefProxyHandler handler = new DefaultDbRefProxyHandler(spELContext, mappingContext,
            MappingMongoConverter.this);
        DbRefResolverCallback callback = new DefaultDbRefResolverCallback(dbo, currentPath, evaluator,
            MappingMongoConverter.this);

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      return;
    }


    if (prop.isDbReference()) {


      DBRef dbRefObj = null;


      /*
       * If we already have a LazyLoadingProxy, we use it's cached DBRef value instead of 
       * unnecessarily initializing it only to convert it to a DBRef a few instructions later.
       */

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      if (element == null) {
        continue;
      }


      DBRef dbRef = createDBRef(element, property);
      dbList.add(dbRef);
    }


    return dbList;
  }

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      return source;
    }


    if (source instanceof DBRef) {


      DBRef ref = (DBRef) source;
      return new DBRef(ref.getDB(), ref.getRef(), convertId(ref.getId()));
    }


    if (source instanceof Iterable) {
      BasicDBList result = new BasicDBList();
      for (Object element : (Iterable<?>) source) {

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   * @see DATAMONGO-424
   */
  @Test
  public void readsPlainDBRefObject() {


    DBRef dbRef = new DBRef(mock(DB.class), "foo", 2);
    DBObject dbObject = new BasicDBObject("ref", dbRef);


    DBRefWrapper result = converter.read(DBRefWrapper.class, dbObject);
    assertThat(result.ref, is(dbRef));
  }

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   * @see DATAMONGO-424
   */
  @Test
  public void readsCollectionOfDBRefs() {


    DBRef dbRef = new DBRef(mock(DB.class), "foo", 2);
    BasicDBList refs = new BasicDBList();
    refs.add(dbRef);


    DBObject dbObject = new BasicDBObject("refs", refs);

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   * @see DATAMONGO-424
   */
  @Test
  public void readsDBRefMap() {


    DBRef dbRef = mock(DBRef.class);
    BasicDBObject refMap = new BasicDBObject("foo", dbRef);
    DBObject dbObject = new BasicDBObject("refMap", refMap);


    DBRefWrapper result = converter.read(DBRefWrapper.class, dbObject);

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   */
  @Test
  @SuppressWarnings({ "rawtypes", "unchecked" })
  public void resolvesDBRefMapValue() {


    DBRef dbRef = mock(DBRef.class);
    when(dbRef.fetch()).thenReturn(new BasicDBObject());


    BasicDBObject refMap = new BasicDBObject("foo", dbRef);
    DBObject dbObject = new BasicDBObject("personMap", refMap);


    DBRefWrapper result = converter.read(DBRefWrapper.class, dbObject);

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   */
  @Test
  public void eagerlyReturnsDBRefObjectIfTargetAlreadyIsOne() {


    DB db = mock(DB.class);
    DBRef dbRef = new DBRef(db, "collection", "id");


    MongoPersistentProperty property = mock(MongoPersistentProperty.class);


    assertThat(converter.createDBRef(dbRef, property), is(dbRef));
  }

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   */
  @Test
  public void readShouldRespectExplicitFieldNameForDbRef() {


    BasicDBObject source = new BasicDBObject();
    source.append("explict-name-for-db-ref", new DBRef(mock(DB.class), "foo", "1"));


    converter.read(ClassWithExplicitlyNamedDBRefProperty.class, source);


    verify(resolver, times(1)).resolveDbRef(Mockito.any(MongoPersistentProperty.class), Mockito.any(DBRef.class),
        Mockito.any(DbRefResolverCallback.class), Mockito.any(DbRefProxyHandler.class));

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