return null;
    }

    /**
     * Processes a document through the ingest pipeline if an ingest factory is available.
     * Applies all configured ingesters to transform and enrich the document data.
     *
     * @param accessResult the access result containing document metadata
     * @param map the document data map to process
     * @return the processed document map after applying all ingesters
     */

 * reader.setScrollSize(1000); // Set the scroll size
 * reader.setLimitOfDocumentSize(1024 * 1024); // Limit document size to 1MB
 * reader.setQuery(QueryBuilders.termQuery("field", "value")); // Set a query
 *
 * Map<String, Object> document;
 * while ((document = reader.read()) != null) {
 *     // Process the document
 *     System.out.println(document);
 * }
 *
 * reader.close(); // Close the reader to release resources
 * }
 * </pre>
 */

        });
        return asEditHtml();
    }

    /**
     * Displays the form for editing an existing document.
     *
     * @param form the edit form containing document ID
     * @return HTML response for the document edit form
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {

        }
    }

    /**
     * Deletes old documents that have the same URL but different document IDs
     * as the documents in the provided list. This prevents duplicate documents
     * from accumulating in the index.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param docList the list of new documents to check against

        }
    }

    /**
     * Extracts anchor URLs from the HTML document.
     *
     * @param document the parsed HTML document
     * @param responseData the response data from crawling
     * @return list of anchor URLs found in the document
     */
    protected List<String> getAnchorList(final Document document, final ResponseData responseData) {
        List<RequestData> anchorList = new ArrayList<>();

        }
        return childUrlSet;
    }

    /**
     * Retrieves child URLs for a given document ID from the search engine index.
     * This method queries the search engine for child documents and extracts their URLs.
     *
     * @param searchEngineClient the search engine client to query
     * @param id the parent document ID to find children for

        }
        return null;
    }

    /**
     * Stores the document IDs associated with a search query for tracking purposes.
     * This method caches the document IDs returned for a specific query to enable click tracking and analytics.
     *
     * @param queryId the unique identifier for the search query
     * @param documentItems the list of document maps containing search results
     */

 * This class provides comprehensive search functionality including document search,
 * scroll search, and bulk operations. It handles search request parameter processing,
 * query building, response formatting, and search log management.
 *
 * Key features:
 * - Document search with pagination and faceting
 * - Scroll search for large result sets
 * - Document retrieval by ID
 * - Bulk document updates

        String field = settings.array().get(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS)[0];

        Map<String, Object> document = new HashMap<>();
        document.put(field, "The persimmon is delicious");
        document.put("lang", "en");
        suggester.indexer().indexFromDocument(new Map[] { document });
        suggester.refresh();

```

## Advanced Usage

### Index from Existing Documents

```java
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;

// Index suggestions from existing Elasticsearch documents
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "content-index",        // source index
    "document"             // document type
);

suggester.indexer()