code: protected final void buildAnchor(AbstractRenderAppender appender, Map queryParams, String labelKey) {
          assert appender != null;
          assert queryParams != null;
          assert labelKey != null && labelKey.length() > 0;
  
          _anchorState.href = buildPageUri(queryParams);
          _anchorTag.doStartTag(appender, _anchorState);
          appender.append(_gridModel.getMessage(labelKey));
          _anchorTag.doEndTag(appender);
          _anchorState.clear();
      }
docs: Build the anchor
  @param appender
  @param queryParams
  @param labelKey