}

    /**
     * Sets the tag field names.
     * @param tagFieldNames The tag field names.
     * @return This SuggestIndexer instance.
     */
    public SuggestIndexer setTagFieldNames(final String[] tagFieldNames) {
        this.tagFieldNames = tagFieldNames;
        return this;
    }

    /**
     * Sets the role field name.
     * @param roleFieldName The role field name.

    }

    /**
     * Test protected field access
     */
    public void test_protectedFieldAccess() {
        TestTransformer transformer = new TestTransformer();

        // Direct field access (simulating subclass behavior)
        transformer.name = "directFieldAccess";
        assertEquals("directFieldAccess", transformer.getName());

        // Setter should update the field
        transformer.setName("setterAccess");

     * @param role The role.
     */
    public void addRole(final String role) {
        roles.add(role);
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.
     */
    public void addField(final String field) {
        fields.add(field);
    }

    /**
     * Adds a kind to filter by.
     * @param kind The kind.
     */
    public void addKind(final String kind) {

 *
 * <p>Example usage:</p>
 * <pre>
 * ICUNormalizer normalizer = new ICUNormalizer("Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC");
 * String normalizedText = normalizer.normalize("text to normalize", "field");
 * </pre>
 *
 * @see com.ibm.icu.text.Transliterator
 */
public class ICUNormalizer implements Normalizer {
    /** The transliterator used for normalization. */
    protected Transliterator transliterator;

            xpathAPI.set(cachedXPathAPI);
        }
        return cachedXPathAPI;
    }

    /**
     * Adds a metadata field with its corresponding XPath expression for extraction.
     *
     * @param name the name of the metadata field
     * @param xpath the XPath expression to extract the metadata value
     */
    public void addMetadata(final String name, final String xpath) {

            }

            @Override
            public List<String> convert(String text, final String field, String... langs) throws IOException {
                return null;
            }
        };

        final Normalizer normalizer = (text, field, lang) -> null;

        final Suggester suggester = Suggester.builder()

    /**
     * Field name for ID.
     */
    protected static final String ID = "id";

    /**
     * Field name for session ID.
     */
    protected static final String SESSION_ID = "sessionId";

    /**
     * Field name for URL.
     */
    protected static final String URL = "url";

    /**
     * Field name for last modified timestamp.
     */

                    if (limitOfDocumentSize > 0) {
                        long size = 0;
                        for (final String field : supportedFields) {
                            final Object value = source.get(field);
                            if (value != null) {
                                size += value.toString().length();
                            }
                        }

 * </ul>
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * HankakuKanaToZenkakuKana normalizer = new HankakuKanaToZenkakuKana();
 * String normalized = normalizer.normalize("ｶﾞｷﾞｸﾞｹﾞｺﾞ", "field");
 * System.out.println(normalized); // Outputs: ガギグゲゴ
 * }
 * </pre>
 *
 * <p>Note: This class assumes that the input string contains valid Hankaku Kana characters
 * and does not perform any validation on the input.</p>

        assertEquals("test", testRule.getRuleId());
    }

    /**
     * Test protected field access
     */
    public void test_protectedFieldAccess() {
        // Test direct field access (protected fields)
        TestAbstractRule rule = new TestAbstractRule();

        // Direct field assignment
        rule.ruleId = "directFieldAccess";