title: Java - Store HashSet in mysql
body: <p>How would I go about storing a HashSet with an unknown size in a mysql table. I know I can loop through it and store it into a longtext field.</p>
  
  <p>However when I retrieve that field and store it into a string temporarily it will use extra memory to store that huge string of info.</p>
  
  <p>Is there any easy way to store a HashSet?  </p>