return optional.orElse(null);
  }

  /**
   * Returns the minimum of the two values. If the values compare as 0, the first is returned.
   *
   * <p>The recommended solution for finding the {@code minimum} of some values depends on the type
   * of your data and the number of elements you have. Read more in the Guava User Guide article on

      }

      message += "delay)";
    }
    // It's confusing to see a completed future in a timeout message; if isDone() returns false,
    // then we know it must have given a pending toString value earlier. If not, then the future
    // completed after the timeout expired, and the message might be success.
    if (isDone()) {

    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override
    public String buildDisplayString(String name, boolean column, boolean relation) { // #pending
        return toString();
    }

    // ===================================================================================

        return facadeSelectList(createCB(cbLambda));
    }

    public PagingResultBean<RequestHeader> selectPage(CBCall<RequestHeaderCB> cbLambda) {
        // #pending same?
        return (PagingResultBean<RequestHeader>) facadeSelectList(createCB(cbLambda));
    }

    public void selectCursor(CBCall<RequestHeaderCB> cbLambda, EntityRowHandler<RequestHeader> entityLambda) {

        return facadeSelectList(createCB(cbLambda));
    }

    public PagingResultBean<ThumbnailQueue> selectPage(CBCall<ThumbnailQueueCB> cbLambda) {
        // #pending same?
        return (PagingResultBean<ThumbnailQueue>) facadeSelectList(createCB(cbLambda));
    }

    public void selectCursor(CBCall<ThumbnailQueueCB> cbLambda, EntityRowHandler<ThumbnailQueue> entityLambda) {

        return facadeSelectList(createCB(cbLambda));
    }

    public PagingResultBean<WebAuthentication> selectPage(CBCall<WebAuthenticationCB> cbLambda) {
        // #pending same?
        return (PagingResultBean<WebAuthentication>) facadeSelectList(createCB(cbLambda));
    }

    public void selectCursor(CBCall<WebAuthenticationCB> cbLambda, EntityRowHandler<WebAuthentication> entityLambda) {

import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Helper class for indexing operations in the Fess search engine.
 * This class provides functionality for sending documents to the search engine,
 * managing document lifecycle operations (create, update, delete), and handling
 * thumbnail processing during indexing.
 *

      }

      message += "delay)";
    }
    // It's confusing to see a completed future in a timeout message; if isDone() returns false,
    // then we know it must have given a pending toString value earlier. If not, then the future
    // completed after the timeout expired, and the message might be success.
    if (isDone()) {

    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override
    public String buildDisplayString(String name, boolean column, boolean relation) { // #pending
        return toString();
    }

    // ===================================================================================

    }

    protected abstract String doBuildColumnString(String dm);

    @Override
    public String toStringWithRelation() { // #pending
        return toString();
    }

    @Override
    public String buildDisplayString(String name, boolean column, boolean relation) { // #pending
        return toString();
    }

    // ===================================================================================