*       com.google.common.primitives.Ints#stringConverter Ints.stringConverter} or the {@linkplain
 *       #reverse reverse} views of these.
 *   <li>Convert between specific preset values using {@link
 *       com.google.common.collect.Maps#asConverter Maps.asConverter}. For example, use this to
 *       create a "fake" converter for a unit test. It is unnecessary (and confusing) to <i>mock</i>

///

### 理解这段代码 { #understand-that-code }

关键点仅仅是：在 `Annotated` 中使用带函数的 **`AfterValidator`**。不感兴趣可以跳过这一节。🤸

---

但如果你对这个具体示例好奇，并且还愿意继续看，这里有一些额外细节。

#### 字符串与 `value.startswith()` { #string-with-value-startswith }

注意到了吗？字符串的 `value.startswith()` 可以接收一个元组，它会检查元组中的每个值：

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[16:19] hl[17] *}

#### 一个随机条目 { #a-random-item }

    protected Cache<String, Boolean> blockedIps;

    /**
     * Default constructor.
     */
    public RateLimitHelper() {
        // nothing
    }

    /**
     * Initialize caches with configuration values.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }

            request.writeBytesWireFormat(smallBuffer, 0);
        });
    }

    @Test
    @DisplayName("Test file ID boundary values")
    void testFileIdBoundaryValues() {
        // Test with file ID having maximum byte values
        byte[] maxFileId = new byte[16];
        Arrays.fill(maxFileId, (byte) 0xFF);

Any C function (even void functions) may be called in a multiple
assignment context to retrieve both the return value (if any) and the
C errno variable as an error (use _ to skip the result value if the
function returns void). For example:

	n, err = C.sqrt(-1)
	_, err := C.voidFunc()
	var n, err = C.sqrt(1)

Note that the C errno value may be non-zero, and thus the err result may be

  private static final class RepeatedStringValueOfFunction
      implements Function<Integer, List<String>> {
    @Override
    public List<String> apply(Integer from) {
      String value = String.valueOf(from);
      return ImmutableList.of(value, value);
    }
  }

  public void testTransformAndConcat() {
    List<Integer> input = asList(1, 2, 3);
    Iterable<String> result =

      dummy ^= JOINER_ON_CHARACTER.join(components).length();
    }
    return dummy;
  }

  /**
   * Mimics what the {@link Joiner} class does internally when no extra options like ignoring {@code
   * null} values are used.
   */
  @Benchmark
  int joinerInlined(int reps) {
    int dummy = 0;
    for (int i = 0; i < reps; i++) {
      StringBuilder sb = new StringBuilder();

        buffer[8] = 0x10;
        buffer[9] = 0x00;

        int result = response.readParametersWireFormat(buffer, 0, 10);

        // Should read 10 bytes
        assertEquals(10, result);
        // Check the values were parsed correctly
        assertEquals(1, response.getSid());
        assertEquals(5, response.getNumEntries());
        assertTrue(response.isEndOfSearch());
    }

    @Test

        assertTrue((request.getFlags() & SMB2_FLAGS_ASYNC_COMMAND) != 0, "Async flag should be set for non-zero asyncId");
    }

    @Test
    @DisplayName("Test edge case with maximum values")
    void testMaximumValues() {
        // Given
        long maxMid = Long.MAX_VALUE;
        long maxAsyncId = Long.MAX_VALUE;
        int maxCredits = Integer.MAX_VALUE;

		t.Errorf("UpdateAt should be changed when update values with assign")
	}

	DB.Where(&User{Name: "find or create 4"}).Assign(User{Age: 44}).FirstOrCreate(&user4)
	if user4.Name != "find or create 4" || user4.ID == 0 || user4.Age != 44 {
		t.Errorf("user should be created with search value and assigned attrs")
	}