code: public StructuredQueryDefinition value(TextIndex index, Boolean value) {
      return new ValueQuery(index, null, null, null, new Object[] {value});
    }
docs: Matches a JSON property that has a value with the same boolean value
  as at least one of the criteria values.  Note this method will not match
  any XML node.
  @param index    the value container
  @param value    either true or false
  @return    the StructuredQueryDefinition for the value query