protected static final String GROOVY_MATCHER = "groovy:";

    /** Map of path mappings by process type. */
    protected final Map<String, List<PathMapping>> pathMappingMap = new HashMap<>();

    /** Cached list of path mappings. */
    protected volatile List<PathMapping> cachedPathMappingList = null;

    /**
     * Initializes the path mapping helper.
     */
    @PostConstruct
    public void init() {

import jakarta.annotation.PostConstruct;

/**
 * Configuration class for query field mappings in the Fess search engine.
 * This class manages field configurations for various query operations including
 * response fields, search fields, facet fields, sort fields, and highlighting.
 * It initializes field mappings from the FessConfig and provides methods to
 * query field properties and capabilities.
 */

├── app.xml                    # DI configuration
├── fess_label_*.properties    # UI labels (i18n)
├── fess_message_*.properties  # Validation messages (i18n)
└── fess_indices/              # OpenSearch index mappings

src/main/webapp/WEB-INF/view/  # JSP templates
```

## DBFlute Code Generation

DBFlute generates type-safe data access code for OpenSearch indices:

```bash
mvn dbflute:freegen
```

 * View class for managing facet query configurations and their display.
 * This class handles the setup and organization of query facets for the search interface,
 * including automatic generation of file type facets and custom query mappings.
 */
public class FacetQueryView {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(FacetQueryView.class);

    /** Title for this facet query view */

    return new ArrayListMultimap<>(expectedKeys, expectedValuesPerKey);
  }

  /**
   * Constructs an {@code ArrayListMultimap} with the same mappings as the specified multimap.
   *
   * <p>You may also consider the equivalent {@code
   * MultimapBuilder.hashKeys().arrayListValues().build(multimap)}, which provides more control over
   * the underlying data structure.

     * Applies fuzzy matching configuration including edit distance, expansions, and prefix length.
     *
     * @param context the query context containing field mappings
     * @param fuzzyQuery the Lucene FuzzyQuery to convert
     * @param boost the boost factor to apply
     * @return OpenSearch QueryBuilder configured for fuzzy matching
     */

   * have the provided key, an empty immutable collection is returned. The values are in the same
   * order as the parameters used to build this multimap.
   */
  @Override
  public abstract ImmutableCollection<V> get(K key);

  /**
   * Returns an immutable multimap which is the inverse of this one. For every key-value mapping in

   * have the provided key, an empty immutable collection is returned. The values are in the same
   * order as the parameters used to build this multimap.
   */
  @Override
  public abstract ImmutableCollection<V> get(K key);

  /**
   * Returns an immutable multimap which is the inverse of this one. For every key-value mapping in

    /** Cache for page paths */
    protected final Map<String, String> pageCacheMap = new ConcurrentHashMap<>();

    /** Initial facet parameter mappings */
    protected final Map<String, String> initFacetParamMap = new HashMap<>();

    /** Initial geographic parameter mappings */
    protected final Map<String, String> initGeoParamMap = new HashMap<>();

    /** List of facet query views */

                for (final String id : labelTypeIds) {
                    final ElevateWordToLabel mapping = new ElevateWordToLabel();
                    mapping.setElevateWordId(elevateWordId);
                    mapping.setLabelTypeId(id);
                    wctltmList.add(mapping);
                }
                elevateWordToLabelBhv.batchInsert(wctltmList, op -> {