}));
            return list;
        });
    }

    /**
     * Updates a specific field in a document.
     *
     * @param index the index name
     * @param id    the document ID
     * @param field the field name to update
     * @param value the new field value
     * @return true if the update was successful, false otherwise

	}

	return nil
}

// IsDaysNull returns true if days field is null
func (e Expiration) IsDaysNull() bool {
	return e.Days == ExpirationDays(0)
}

// IsDateNull returns true if date field is null
func (e Expiration) IsDateNull() bool {
	return e.Date.IsZero()
}

// IsNull returns true if both date and days fields are null
func (e Expiration) IsNull() bool {

	}

	if t.StorageClass == "" {
		return errXMLNotWellFormed
	}
	return nil
}

// IsDateNull returns true if date field is null
func (t Transition) IsDateNull() bool {
	return t.Date.IsZero()
}

// IsNull returns true if both date and days fields are null
func (t Transition) IsNull() bool {
	return t.StorageClass == ""
}

			wantErr: `Each form field that you specify in a form must appear in the list of policy conditions. "X-Amz-Meta-Name" not specified in the policy.`,
		},
		{
			name:    "unknown key XAmzChecksumAlgo is error as it does not appear in policy",
			fv:      defaultFormVals.Clone().Set(http.CanonicalHeaderKey(xhttp.AmzChecksumAlgo), "algo-val"),

| Solr Feature | Fess Equivalent |
|--------------|----------------|
| Solr Core | Fess doesn't use cores; all documents in one index |
| Schema Fields | Define in crawl configuration or use default fields |
| RequestHandlers | Use Fess JSON API with parameters |
| Facet Fields | Configure in Fess search settings |
| Highlighting | Built-in in Fess search results |

---

### Other Search Systems

        // Then
        assertNotNull(dfsRootEnum, "The MsrpcDfsRootEnum object should not be null.");
        // The server name is stored in a protected field without a public getter, so we cannot directly test it.
        // We can test the public fields that are set.
        assertEquals(200, dfsRootEnum.level, "The level should be initialized to 200.");
        assertNotNull(dfsRootEnum.info, "The info struct should not be null.");

/**
 * The annotated element must not be null.
 * <p>
 * Annotated fields must not be null after construction has completed.
 * <p>
 * When this annotation is applied to a method it applies to the method return value.
 *
 * @see Nullable
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.FIELD, ElementType.PARAMETER, ElementType.METHOD})

Більше про це можна прочитати в кінці цієї сторінки.

///

## Додаткові аргументи `Field`

Коли ви використовуєте `Field()` у моделях Pydantic, Ви також можете вказати додаткові `examples`:

{* ../../docs_src/schema_extra_example/tutorial002_py310.py hl[2,8:11] *}

## `examples` у JSON-схемі — OpenAPI

    private MsrpcDfsRootEnum dfsRootEnum;

    @BeforeEach
    void setUp() {
        dfsRootEnum = new MsrpcDfsRootEnum(TEST_SERVER);
    }

    @Test
    @DisplayName("Constructor should initialize all fields correctly")
    void testConstructorInitialization() {
        // Verify level is set to 200 for DFS root enumeration
        assertEquals(200, dfsRootEnum.level);

        // Verify DCE/RPC message properties

        authenticator = new NtlmPasswordAuthenticator("DOMAIN", "username", "originalPassword");
        NtlmPasswordAuthenticator cloned = authenticator.clone();

        // Get password fields using reflection
        Field passwordField = NtlmPasswordAuthenticator.class.getDeclaredField("password");
        passwordField.setAccessible(true);

        char[] originalPassword = (char[]) passwordField.get(authenticator);