}
    }

    /**
     * Sets the main searcher at index 0 of the searchers list.
     * This method is used to configure the primary searcher for rank fusion processing.
     * If searchers list is empty, adds the searcher; otherwise, replaces the first searcher.
     *
     * @param searcher the RankFusionSearcher to set as the main searcher
     */
    public void setSearcher(final RankFusionSearcher searcher) {

import org.dbflute.optional.OptionalThing;

/**
 * Abstract base class for rank fusion searchers in the Fess search system.
 * Rank fusion searchers are responsible for executing search queries and
 * can be combined to implement advanced ranking strategies.
 */
public abstract class RankFusionSearcher {
    /** The name of this searcher, lazily initialized. */
    protected String name;

    /**

        }

        final String[] searchers = DocumentUtil.getValue(docMap, Constants.SEARCHER, String[].class);
        if (searchers != null) {
            docMap.put(Constants.SEARCHER, ArrayUtil.add(searchers, getName()));
        } else {
            docMap.put(Constants.SEARCHER, new String[] { getName() });
        }

        return docMap;
    }

    public static final Boolean F = false;

    /** Constant for score field identifier. */
    public static final String SCORE = "score";

    /** Constant for searcher identifier. */
    public static final String SEARCHER = "searcher";

    /** Constant representing "on" state. */
    public static final String ON = "on";

    // ============================================================
    // Status Constants

							<c:if test="${s.index < 3}">
								<la:link
									href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}">${f:h(item)}</la:link>
							</c:if>
							<c:if test="${3 <= s.index}">
								<la:link styleClass="d-none d-sm-inline-block"
									href="/search?q=${f:u(item)}${fe:facetQuery()}${fe:geoQuery()}">${f:h(item)}</la:link>
							</c:if>
						</c:forEach>
					</p>

Shinsuke Sugaya <******@****.***> 1472095477 +0900

     */
    @Size(max = 1000)
    public String notificationTo;

    /**
     * Enable or disable search suggestions based on search logs.
     * When enabled, suggestions are generated from previous searches.
     */
    @Size(max = 10)
    public String suggestSearchLog;

    /**
     * Enable or disable search suggestions based on document content.
     * When enabled, suggestions are generated from indexed documents.

A powerful Java library that provides intelligent search suggestion functionality built on top of OpenSearch/Elasticsearch. It offers auto-completion, query suggestions, and popular word analytics for search applications.

## Key Features

- **Smart Query Suggestions**: Real-time auto-completion and search suggestions

    /** Array of fields that can be searched against */
    protected String[] searchFields;

    /** Set of fields that can be searched against for O(1) lookup */
    protected Set<String> searchFieldSet;

    /** Array of fields that can be used for faceted search */
    protected String[] facetFields;

    /** Set of fields that can be used for faceted search for O(1) lookup */
    protected Set<String> facetFieldSet;

import org.opensearch.search.rescore.RescorerBuilder;
import org.opensearch.search.sort.SortBuilder;
import org.opensearch.search.sort.SortBuilders;
import org.opensearch.search.sort.SortOrder;

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpSession;

/**
 * QueryHelper is responsible for building and managing OpenSearch queries for Fess search functionality.