## Declare `Header` parameters { #declare-header-parameters }

Then declare the header parameters using the same structure as with `Path`, `Query` and `Cookie`.

You can define the default value as well as all the extra validation or annotation parameters:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[9] *}

/// note | Technical Details

import org.lastaflute.job.subsidiary.JobConcurrentExec;
import org.lastaflute.web.validation.RequiredValidator;
import org.lastaflute.web.validation.theme.typed.DoubleTypeValidator;
import org.lastaflute.web.validation.theme.typed.FloatTypeValidator;
import org.lastaflute.web.validation.theme.typed.IntegerTypeValidator;
import org.lastaflute.web.validation.theme.typed.LongTypeValidator;
import org.opensearch.search.sort.SortBuilder;

			t.Errorf("Testcase %d: newer release is available but got empty update message!", i+1)
		case output == "" && (testCase.dlURL == "" || testCase.older <= 0):
			// Valid no update message case. No further
			// validation needed.
			continue
		case !strings.Contains(output, line1):
			t.Errorf("Testcase %d: output '%s' did not contain line 1: '%s'", i+1, output, line1)
		case !strings.Contains(output, line2):

    }

    /**
     * Validate the specified settings.
     *
     * @param settings The settings to validate, must not be {@code null}.
     * @param isProjectSettings Boolean indicating if the validation is for project settings or user / installation settings.
     * @return The list of problems that were encountered, must not be {@code null}.
     */
    @Nonnull

Used by Pydantic:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - for email validation.

Used by Starlette:

* <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Required if you want to use the `TestClient`.

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.validation;

import org.codelibs.fess.unit.UnitFessTestCase;

public class UriTypeValidatorTest extends UnitFessTestCase {
    public void test_check_ok() {
        String[] protocols;
        String values;

import org.codelibs.fess.app.web.login.LoginAction;
import org.codelibs.fess.mylasta.action.FessUserBean;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.validation.VaErrorHook;

import jakarta.annotation.Resource;

/**
 * Action for user profile operations.
 */
public class ProfileAction extends FessSearchAction {

    /**
     * Default constructor.
     */

    public static boolean isDotQuadIP(final String hostname) {
        if (Character.isDigit(hostname.charAt(0))) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = hostname.length();
            data = hostname.toCharArray();
            while (i < len && Character.isDigit(data[i++])) {
                if (i == len && dots == 3) {

        assertNotNull(buffer, "Buffer should not be null");
        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, buffer.length, "Buffer should have TRANSACTION_BUF_SIZE");

        // The validation in getBuffer() ensures size is within bounds (0 < size <= 1MB)
        assertTrue(buffer.length > 0, "Buffer size should be positive");
        assertTrue(buffer.length <= 0x100000, "Buffer size should not exceed 1MB");
    }

O **JSON Schema** na verdade não tem um campo `example` nos padrões. Versões recentes do JSON Schema definem um campo <a href="https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5" class="external-link" target="_blank">`examples`</a>, mas o OpenAPI 3.0.3 é baseado numa versão mais antiga do JSON Schema que não tinha `examples`.