Method clean

src/query/expression/ExpressionTree.java:219–236

Helper to clean out some characters @param values The collection of strings to cleanup @return An empty string if values was empty or a cleaned up string

(final Collection<String> values)

   * @return An empty string if values was empty or a cleaned up string
   */
  private String clean(final Collection<String> values) {
    if (values == null || values.size() == 0) {
      return "";
    }

    final List<String> strs = Lists.newArrayList();
    for (String v : values) {
      final String tmp = v.replaceAll("\\{.*\\}", "");
      final int ix = tmp.lastIndexOf(':');
      if (ix < 0) {
        strs.add(tmp);
      } else {
        strs.add(tmp.substring(ix+1));
      }
    }

    return DOUBLE_COMMA_JOINER.join(strs);
  }

  @VisibleForTesting
  List<ExpressionTree> subExpressions() {