* @return the batch limit for the command, or null if not set
     */
    protected Integer doGetBatchLimit(final String cmd) {
        return null;
    }

    /**
     * Initializes the resolver order for name resolution.
     *
     * @param ro comma-separated list of resolver types (LMHOSTS, WINS, BCAST, DNS)
     */
    protected void initResolverOrder(final String ro) {

    private IngestFactory ingestFactory = null;

    /**
     * Initializes the callback implementation after dependency injection.
     * Sets up configuration values and initializes the ingest factory if available.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }

 * 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.
 */
public class QueryFieldConfig {

    /**
     * Default constructor.
     */

        response = new Trans2SetFileInformationResponse(config);
    }

    @Test
    @DisplayName("Test constructor initializes object correctly")
    void testConstructor() {
        // Test that the constructor properly initializes the object
        assertNotNull(response);
        // The command is not set in the constructor, defaults to 0
        assertEquals(0, response.getCommand());

    protected long searchStoreInterval = 1; // min

    /**
     * Initializes the SuggestHelper.
     * This method sets up the suggester, configures field names, and initializes
     * the connection to the search engine.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }

 * Base test class for query-related tests that properly initializes FessConfig
 */
public abstract class QueryTestBase extends UnitFessTestCase {

    protected QueryProcessor queryProcessor;

    @Override
    public void setUp() throws Exception {
        super.setUp();

        // Setup FessConfig with proper initialization
        setupBaseFessConfig();

        // Initialize QueryFieldConfig

    /**
     * Default constructor for RankFusionProcessor.
     * Initializes the processor with default values. The actual initialization
     * is performed by the init() method which is called after construction.
     */
    public RankFusionProcessor() {
        // Default constructor - initialization is done in init() method
    }

    /**
     * Initializes the rank fusion processor after construction.

	len  int         // current list Length excluding (this) sentinel element
}

// Init initializes or clears list l.
func (l *LruList[K, V]) Init() *LruList[K, V] {
	l.root.next = &l.root
	l.root.prev = &l.root
	l.len = 0
	return l
}

// NewList returns an initialized list.
func NewList[K comparable, V any]() *LruList[K, V] { return new(LruList[K, V]).Init() }

    /** Cache for storing statistics objects keyed by crawler object identifiers. */
    protected LoadingCache<String, StatsObject> statsCache;

    /**
     * Initializes the crawler statistics helper.
     * Sets up the statistics logger and creates the cache for storing
     * statistics objects with the configured size and expiration settings.
     */
    @PostConstruct

     */
    protected final List<DataCrawlingThread> dataCrawlingThreadList = Collections.synchronizedList(new ArrayList<>());

    /**
     * Creates a new instance of DataIndexHelper.
     * This constructor initializes the helper for managing data crawling operations,
     * including thread pool management and session-based crawling coordination.
     */
    public DataIndexHelper() {