}

    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();
    }

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

/**
 * This class simplifies communication for protocols that support
 * multiplexing requests. It encapsulates a stream and some protocol
 * knowledge (provided by a concrete subclass) so that connecting,
 * disconnecting, sending, and receiving can be syncronized
 * properly. Apparatus is provided to send and receive requests
 * concurrently.
 */

public abstract class Transport implements Runnable, AutoCloseable {

        return facadeSelectList(createCB(cbLambda));
    }

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

    public void selectCursor(CBCall<BadWordCB> cbLambda, EntityRowHandler<BadWord> entityLambda) {

        return facadeSelectList(createCB(cbLambda));
    }

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

    public void selectCursor(CBCall<FileAuthenticationCB> cbLambda, EntityRowHandler<FileAuthentication> entityLambda) {

        return facadeSelectList(createCB(cbLambda));
    }

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

    public void selectCursor(CBCall<KeyMatchCB> cbLambda, EntityRowHandler<KeyMatch> entityLambda) {

        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<DuplicateHost> selectPage(CBCall<DuplicateHostCB> cbLambda) {
        // #pending same?
        return (PagingResultBean<DuplicateHost>) facadeSelectList(createCB(cbLambda));
    }

    public void selectCursor(CBCall<DuplicateHostCB> cbLambda, EntityRowHandler<DuplicateHost> entityLambda) {

     * opened if it is not and should be closed with {@link #close()} when no longer
     * needed.
     * 
     * Closing the context should cancel a pending notify request, but that does not seem to work reliable in all
     * implementations.
     * 
     * Changes in between these calls (as long as the file is open) are buffered by the server, so iteratively calling

   *
   * <p>Among the improvements that this method and {@code LoadingCache.get(K)} both provide are:
   *
   * <ul>
   *   <li>{@linkplain LoadingCache#get(Object) awaiting the result of a pending load} rather than
   *       starting a redundant one
   *   <li>eliminating the error-prone caching boilerplate
   *   <li>tracking load {@linkplain #stats statistics}
   * </ul>
   *

  @Param EqualsImplementation equalsImpl;

  private enum WhereToDiffer {
    ONE_PERCENT_IN,
    LAST_BYTE,
    NOT_AT_ALL;
  }

  private enum EqualsImplementation {
    ANDING_BOOLEANS {
      @Override
      boolean doEquals(byte[] a, byte[] b) {
        if (a.length != b.length) {
          return false;
        }
        boolean areEqual = true;