Tech Days 2010

Tech Days 2010 from Oracle Luqman Shareef www.luqmanshareef.com [email_address] March 24-25 2010 Hyderabad

The event ,[object Object],Krishna Dhawan, Managing Director, Oracle India talked about the re-enforced commitment to Java.

Technology showcase: Be inspired ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

James Gosling, Father of Java gave an overview of the Java ecosystem. To run through his slides James was using an application that he developed using JavaFX

From James presentation… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What’s new in JDK 7 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java EE 6 (From Arun Gupta’s presentation)

Goals for the Java EE 6 Platform ,[object Object],[object Object],[object Object],[object Object],[object Object]

What’s new in JEE 6? (Spec released in Dec 2009) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java EE 6 Web Profile 1.0 ,[object Object],[object Object],[object Object],Servlets 3.0 JSP 2.2 EL 2.2 JSTL 1.2 EJB 3.1 Lite JTA 1.1 JPA 2.0 Bean Validation 1.0 Managed Beans 1.0 JSF 2.0 Common Annotations 1.1 Interceptors 1.1 Context & Dependency Injection 1.0

Java EE 6 is Lightweight ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Java EE 6 is Extensible ,[object Object],[object Object],[object Object],[object Object],[object Object]

Glassfish is ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CLI-based Administration ,[object Object],[object Object],Available as : asadmin myCommand –s1 foo –s2 bar @Service(name=”myCommand”) public class ChangeRandomCtr implements AdminCommand { @Param String s1; @Param String s2; … }

Glassfish REST Interface ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Oracle said .. ,[object Object],[object Object],[object Object],[object Object],http://blogs.sun.com/arungupta/entry/glassfish_strategy_by_oracle_sun

What is JavaFX? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 Compile javafxc script.fx Run javafx script

Some JavaFX APIs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 Example import javafx.scene.geometry.*; import javafx.scene.paint.*; Ellipse { centerX: 50 centerY: 50 radiusX: 50 radiusY: 25 fill: Color.BLACK }

Performance Tuning Garbage Collection 04/05/10

Garbage Collection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Serial vs. Parallel Vs. Concurrent GC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Memory pools for HotSpot JVM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

HotSpot VM Heap Layout 04/05/10

Garbage First (G1) GC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Hints for GC tuning ,[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

JPA 2.0 04/05/10 http://blogs.sun.com/arungupta/entry/day_2_tech_days_2010

JPA 2.0 (JSR 317) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

What is new in JPA 2.0? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Element Collection and Embeddable classes ,[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 @Entity public class Person { @Id protected String ssn; protected String name; protected Date birthDate; . . . @ElementCollection protected Set<String> nickNames; } @Embeddable public class Address { String street; String city; . . . } @Entity public class RichPerson extends Person { . . . @ElementCollection protected Set<Address> vacationHomes; . . . }

Java Persistence Query Language ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Criteria API ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 EntityManager em = …; CriteriaBuilder cb = em.getCriteriaBuilder(); CriteriaQuery<ResultType> cquery = cb.createQuery(ResultType.class); Root<MyEntity> e = cquery.from(MyEntity.class); Join<MyEntity, RelatedEntity> j = e.join(…); … cquery.select(…) .where(…) .orderBy(…) .groupBy(…); TypedQuery<ResultType> tq = em.createQuery(cquery); List<ResultType> result = tq.getResultList();

Servlet 3.0 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Annotations 04/05/10 Web.xml is not needed any more ,[object Object],[object Object],[object Object],[object Object],@WebServlet(urlPatterns="/simpletest", name="MyServlet", asyncSupported=true) public class SimpleServlet extends HttpServlet{ public void doGet(HttpServletRequest req,HttpServletResponse res){ // Code here } }

Dynamic Registration of Servlets/Filters 04/05/10 public class TestServletContextListener implements ServletContextListener { @Override public void contextInitialized(ServletContextEvent sce) { ServletContext servletConext = sce.getServletContext(); // Servlets/Filters can be added during runtime ServletRegistration.Dynamic dynamic = servletContext.addServlet( "DynamicServlet", "com.mycom.MyServlet"); dynamic.addMapping("/dynamicServlet"); dynamic.setAsyncSupported(true); ....

Asynchronous Servlet ,[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Pluggability (of 3rd party Frameworks) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 < web-fragment > <servlet> <servlet-name>MyFramework</servlet-name> <servlet-class>com.MyFrameworkServlet </servlet-class> </servlet> <servlet-mapping> <servlet-name>MyFramework</servlet-name> <url-pattern>/MyFramework</url-pattern> </servlet-mapping> ... </ web-fragment >

EJB 3.1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 @Stateless public class HelloWorldBean { // No interface public String sayHello() { return "Hello World!"; } }

EJB 3.1 contd… ,[object Object],[object Object],[object Object],04/05/10 @Singleton public class MyCacheBean { private Map cache; public Map getCache() { … .. } public class MySampleBean { @Asynchronous public Future<Long> sendEmail(String id){ ... }

EJB 3.1 contd… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10 @Stateless public class WakeUpBean { @Schedule(dayOfWeek="Mon-Fri", hour="9") void wakeUp() { ... }

EJB Lite ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],04/05/10

Thank You 04/05/10 Visit www.luqmanshareef.com

Tech Days 2010

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