Updating my JFrame when database is updated

Question

I am developing 2 application who are reliated to the same database. I use java swing and I want to update my Frame when the database is updated from the other application. I tried to write my code in a loop using

while (this.isVisible())

But it doesn't work. My code:

try
 { 
 Class.forName("com.mysql.jdbc.Driver");
 Connection con= DriverManager.getConnection("jdbc:mysql://localhost/Base", "root", "");
 PreparedStatement pstmt = con.prepareStatement("SELECT enter from table where person =? ");
 pstmt.setString(1,"responsable");
 ResultSet rs= pstmt.executeQuery();
 while (this.isVisible()){
 while(rs.next()){
 
 if (rs.getInt("enter")==0)
   {
     jLabel13.hide();
     jLabel10.setVisible(true);
   }
else
   {
     jLabel10.hide();
     jLabel13.setVisible(true);
    }}}