code: protected ExposedParsedSql getParsedSql(String sql) {
  		if (getCacheLimit() <= 0) {
  			return new ExposedParsedSql( NamedParameterUtils.parseSqlStatement(sql) );
  		}
  		synchronized (this.parsedSqlCache) {
  			ExposedParsedSql parsedSql = this.parsedSqlCache.get(sql);
  			if (parsedSql == null) {
  				parsedSql = new ExposedParsedSql( NamedParameterUtils.parseSqlStatement(sql) );
  				this.parsedSqlCache.put(sql, parsedSql);
  			}
  			return parsedSql;
  		}
  	}
docs: Obtain a parsed representation of the given SQL statement.
  <p>The default implementation uses an LRU cache with an upper limit
  of 256 entries.
  @param sql the original SQL
  @return a representation of the parsed SQL statement