code: @Override
    public List<Concept> search(ConceptKind kind, String text, boolean isRegex) {
  		assert checkStringParam(text) : paramError("search", "text", "must not be null or empty");
  		return new Search().doSearch(model, kind, text, isRegex);
  	}
docs: /* (non-Javadoc)
  @see org.eclipse.ohf.ucum.UcumServiceEx#search(org.eclipse.ohf.ucum.model.ConceptKind, java.lang.String, boolean)