}
    }

    /**
     * Sets the main searcher at index 0 of the searchers array.
     * This method is used to configure the primary searcher for rank fusion processing.
     *
     * @param searcher the RankFusionSearcher to set as the main searcher
     */
    public void setSeacher(final RankFusionSearcher searcher) {
        searchers[0] = searcher;
    }

    /**

        }

        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;
    }

     */
    @Size(max = 10)
    public String appendQueryParameter;

    /**
     * Enable or disable login requirement for search access.
     * When enabled, users must authenticate before performing searches.
     */
    @Size(max = 10)
    public String loginRequired;

    /**
     * Enable or disable result collapsing for similar documents.
     * When enabled, similar search results are grouped together.

   *
   * <p>This method runs in log(n) time on random-access lists, which offer near-constant-time
   * access to each list element.
   *
   * @param list the list to be searched.
   * @param key the value to be searched for.
   * @param comparator the comparator by which the list is ordered.
   * @param presentBehavior the specification for what to do if at least one element of the list

    }

    public void test_getName_customSearcherClass() {
        // Test with different searcher implementation
        RankFusionSearcher customSearcher = new CustomSearcher();
        assertEquals("custom", customSearcher.getName());
    }

    public void test_getName_simpleSearcherClass() {
        // Test with simple searcher name
        RankFusionSearcher simpleSearcher = new SimpleSearcher();

### Search Analytics

```java
// Track user queries for analytics
QueryLog userQuery = new QueryLog("machine learning tutorials", "user456");
suggester.indexer().indexFromQueryLog(userQuery);

// Get trending searches
PopularWordsResponse trending = suggester.popularWords()
    .setSize(10)
    .execute()
    .getResponse();
```

## Troubleshooting

### Common Issues

**Index Creation Fails**

    }

    /**
     * Gets the fields that can be searched against.
     *
     * @return array of field names that can be searched
     */
    public String[] getSearchFields() {
        return searchFields;
    }

    /**
     * Sets the fields that can be searched against.
     *
     * @param supportedFields array of field names that can be searched
     */

    /** Default facet information configuration for search results */
    protected FacetInfo defaultFacetInfo;

    /** Default geographic information configuration for location-based searches */
    protected GeoInfo defaultGeoInfo;

    /** Map containing field-specific boost values for search scoring */
    protected Map<String, String> fieldBoostMap = new HashMap<>();

        // Reset MID to a known starting point for deterministic behavior
        setField(transport, "mid", new AtomicLong());
    }

    // Utility: reflectively set a private/protected field (searches up the hierarchy)
    private static void setField(Object target, String name, Object value) {
        try {
            Field f = findField(target.getClass(), name);
            f.setAccessible(true);

    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