private String[] convertEscaped(Path<?> leftHandSide,
            Expression<?> rightHandSide, QueryMetadata metadata) {
        String[] str = convert(leftHandSide, rightHandSide, metadata);
        for (int i = 0; i < str.length; i++) {
            str[i] = QueryParser.escape(str[i]);
        }
        return str;
    }
template method

@param leftHandSide
           left hand side
@param rightHandSide
           right hand side
@return results
querydsl-lucene5/src/main/java/com/querydsl/lucene5/LuceneSerializer.java