import org.codelibs.fess.crawler.entity.AccessResult;

/**
 * A callback interface for processing access results.
 *
 * @param <RESULT> the type of access result that extends {@link AccessResult}
 */
public interface AccessResultCallback<RESULT extends AccessResult<?>> {
    /**
     * Processes the given access result.
     *
     * @param accessResult the result of the access operation to be processed
     */

     * Iterates over access results for the given session ID and applies the callback.
     *
     * @param sessionId the session ID
     * @param accessResultCallback the callback to apply to each access result
     */
    void iterate(String sessionId, final AccessResultCallback<RESULT> accessResultCallback);

     *
     * @param sessionId the session ID
     * @param accessResultCallback the callback to invoke for each access result
     */
    @Override
    public void iterate(final String sessionId, final AccessResultCallback<AccessResultImpl<Long>> accessResultCallback) {
        final Map<String, AccessResultImpl<Long>> arMap = dataHelper.getAccessResultMap(sessionId);

            public List<AccessResult<?>> getAccessResultList(String url, boolean hasData) {
                return null;
            }

            @Override
            public void iterate(String sessionId, AccessResultCallback<AccessResult<?>> callback) {
            }
        };

        CrawlingParameterUtil.setDataService(service);

        // Verify it can be retrieved

import org.codelibs.fess.crawler.entity.OpenSearchAccessResultData;
import org.codelibs.fess.crawler.exception.OpenSearchAccessException;
import org.codelibs.fess.crawler.service.DataService;
import org.codelibs.fess.crawler.util.AccessResultCallback;
import org.codelibs.fess.crawler.util.OpenSearchCrawlerConfig;
import org.codelibs.fess.crawler.util.OpenSearchResultList;
import org.opensearch.action.DocWriteRequest.OpType;