title: Implementations of RowSet, CachedRowSet etc
body: <p>Until today I was working with <code>ResultSet</code> when handling results from queries. But today I read a little about <a href="http://[%60RowSet%60](http://download.java.net/java/jdk9/docs/api/javax/sql/RowSet.html)" rel="nofollow noreferrer"><code>RowSet</code></a> and <a href="https://docs.oracle.com/javase/9/docs/api/javax/sql/rowset/CachedRowSet.html" rel="nofollow noreferrer"><code>CachedRowset</code></a> and I realized they can serve my purposes better. While in all the examples I read where <code>RowSet</code> and <code>CachedRowSet</code> were referred to as object, when I tried it myself in my code I realized those are interfaces and in the examples they use some implementation of those interfaces.</p>
  
  <p>Now my question is where do I find those implementations, and is there something official?</p>
  
  <p>Do I need to download them or do they come with the JDK?</p>