// generate the table mapping, could use xml def
public synchronized SQLRow toSQLRow() {
SQLRow row = new SQLRow("serving");
row.addColumn("source", Types.VARCHAR);
row.addColumn("food", Types.VARCHAR);
row.addColumn("time", Types.TIMESTAMP);
row.addColumn("grams", Types.DOUBLE);
row.addColumn("measure", Types.VARCHAR);
return row;
}
