8:00 – 1:30, 3:30 -6:00  CSIP

• Ok ,now that we have working(?) code, I have something to walk through while reading the book.
• The Drools team suggests that you use the joda DateTime library. It looks pretty nice, too – http://joda-time.sourceforge.net/. They also have a bunch of other interesting libraries at http://joda.sourceforge.net/
• Setting a global value in a rule
• Java

  // Import the class
  import droolsbook.bank.service.BankingInquiryService;
  
  // create the session
  static StatelessKnowledgeSession session;
  
  // create rule engine
  KnowledgeBaseConfiguration configuration = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
  KnowledgeBase knowledgeBase = KnowledgeBaseFactory.newKnowledgeBase(configuration);
  
  // declare our global
  BankingInquiryService inquiryService = new BankingInquiryServiceImpl();
  
  // make a session
  session = knowledgeBase.newStatelessKnowledgeSession();
  
  // add the global to the session
  session.setGlobal("inquiryService", inquiryService);

• Drools rule (.drl file)

  // import
  import droolsbook.bank.service.*;
  
  // declare
  global BankingInquiryService inquiryService;
  
  // use the global in a rule (note the surrounding eval(), which can evaluate any code that returns a TRUE or FALSE).
  rule "accountNumberUnique"
      when
          $account : Account(eval(!inquiryService.isAccountNumberUnique($account)))
      then
          error(kcontext, $account);
  end

• Chapter 4
• Hmm. com.ibatis.sqlmap.client.SqlMapClient looks interesting.
• After poking around, I think I found something better. Castor appears to do XML/SQL/other(?) data binding with Java. IBM appears to have a nice set of articles.
• And Hibernate may now be able to do this as well.
• Nice data visualization using webGL
•