java: DynaBean.contains(String name, String key) - how to use it properly?

I use List to fetch a ResultSet from an SQL query (using mysql). After I fetch one row using

DynaBean row = rowList.get(0); 

I would like to know if one of the columns named 'id' exists.

The problem is that the row.contains() function requires two parameters. String name and String key. I can't quite figure out how to use this function.

any ideas?



Welp.. it's not the answer I wanted, but for now I can use the get() function to retrieve the rows and check using a try catch block and catching IllegalArgumentException which means that the column name is not available.

    List<DynaBean> rowsList=this._mysqlDb.foobar();
    Date timeStamp=null;
    for (int i=0;i<rowsList.size();i++) {
        DynaBean row = rowsList.get(i);
        try {
         timeStamp = this._mysqlDb.sqlTimestampToDate((java.sql.Timestamp)row.get("end_timestamp"));
        } catch (IllegalArgumentException e) {
            log.error("could not find properties: {}",e.getMessage());
            return false;

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