public class Oracle10gDialectPaging extends Oracle10gDialect {

    @Override
    public String getLimitString(String sql, boolean hasOffset) {
        sql = sql.trim();
        String forUpdateClause = null;
        boolean isForUpdate = false;
        final int forUpdateIndex = sql.toLowerCase().lastIndexOf("for update");
        if (forUpdateIndex > -1) {
            // save 'for update ...' and then remove it
            forUpdateClause = sql.substring(forUpdateIndex);
            sql = sql.substring(0, forUpdateIndex - 1);
            isForUpdate = true;
        }

        StringBuilder pagingSelect = new StringBuilder(sql.length() + 100);
        pagingSelect.append("select * from ( select row_.*, rownum rownum_ from ( ");

        pagingSelect.append(sql);
        if (hasOffset) {
            pagingSelect.append(" ) row_) where rownum_ <= ? and rownum_ > ?");
        } else {
            pagingSelect.append(" ) row_) where rownum_ <= ?");
        }

        if (isForUpdate) {
            pagingSelect.append(" ");
            pagingSelect.append(forUpdateClause);
        }

        return pagingSelect.toString();
    }