listeners = update;
    return old;
  }

  static boolean casValue(AbstractFutureState<?> future, @Nullable Object expect, Object update) {
    if (future.value == expect) {
      future.value = update;
      return true;
    }
    return false;
  }

  final @Nullable Object value() {
    return value;
  }

  final @Nullable Listener listeners() {
    return listeners;
  }

از جمله کتابخانه های خارجی نیز مبتنی بر Pydantic میتوان به <abbr title="Object-Relational Mapper">ORM</abbr> و <abbr title="Object-Document Mapper">ODM</abbr> ها برای دیتابیس ها اشاره کرد.

        final List<Map<String, Object>> sentDocList = new ArrayList<>();
        final SearchEngineClient client = new SearchEngineClient() {
            @Override
            public BulkResponse addAll(final String index, final List<Map<String, Object>> docList,
                    final BiConsumer<Map<String, Object>, IndexRequestBuilder> options) {
                sentIndex.set(index);

        @SuppressWarnings("unchecked")
        Map<String, Object> nestedResult = (Map<String, Object>) result.get("nested_map");
        assertEquals("nestedValue", nestedResult.get("nested_key"));
    }

    public void test_toLowerHyphen_emptyMap() {
        Map<String, Object> source = new HashMap<>();
        Map<String, Object> result = searchLogHelper.toLowerHyphen(source);

        assertNotNull(result);

     * Converts to {@link Float}.
     *
     * @param o
     *            The object to convert
     * @return The converted {@link Float}
     */
    public static Float toFloat(final Object o) {
        return toFloat(o, null);
    }

    /**
     * Converts to {@link Float}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string

  }

  public void testToArray_largeEnough() {
    Object[] actual = getList().toArray(new Object[getNumElements()]);
    assertArrayEquals("toArray(largeEnough) order should match list", createOrderedArray(), actual);
  }

  private static void assertArrayEquals(String message, Object[] expected, Object[] actual) {
    assertEquals(message, asList(expected), asList(actual));
  }

        }
        return (T) arg;
    }

    private Object convertPrimitiveWrapper(final Object arg) {
        return NumberConversionUtil.convertPrimitiveWrapper(propertyType, arg);
    }

    private Object convertNumber(final Object arg) {
        return NumberConversionUtil.convertNumber(propertyType, arg);
    }

    private Object convertDate(final Object arg) {
        if (propertyType == java.util.Date.class) {

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[21:22] hl[21:22] *}

### Create a Session Dependency { #create-a-session-dependency }

A **`Session`** is what stores the **objects in memory** and keeps track of any changes needed in the data, then it **uses the `engine`** to communicate with the database.

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#clone()
     */
    @Override
    protected Object clone() throws CloneNotSupportedException {
        return new SecurityBlob(this.b.clone());
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(final Object arg0) {
        try {

        }

        @Override
        public Object getFeature(String feature, String version) {
            return null;
        }

        @Override
        public Object setUserData(String key, Object data, org.w3c.dom.UserDataHandler handler) {
            return null;
        }

        @Override
        public Object getUserData(String key) {
            return null;
        }