public boolean init(){
  try {
    checkAndCreateSchema();
    checkAndCreateTables();
    return true;
  }
 catch (  Exception ex) {
    logger.log(Level.SEVERE,"Exception",ex);
    return false;
  }
}

public boolean init ( ) { try { checkAndCreateSchema ( ) ; checkAndCreateTables ( ) ; return true ; } catch ( Exception ex ) { logger . log ( Level . SEVERE , "Exception" , ex ) ; return false ; } }
check required schema and tables
