Introducing Contexts and Dependency Injection 1.1

Transcription

1 Introducing Contexts and Dependency Injection 1.1 Pete Muir Principal Software Engineer Red Hat, Inc. October 1

2 CDI 1.0 CDI 1.1 Insanely productive JavaOne Slide Template Title (Global) Ordering Java SE support Extensions & Deployment Context/Scope improvements Tracking

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5 What you will learn? What problems we want to solve Our ideas on how to solve them How you can influence the CDI 1.1

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7 Issue tracker

8 Issue tracker Mailing list

9 Issue tracker Mailing list Wiki

10 Issue tracker Mailing list Wiki Review process

11 Issue tracker Mailing list Wiki Review process Spec (git)

12 Community Sponsored Issues

13 Community Sponsored Issues

14 (Global) Ordering Option 1: public class Goalkeeper public Object catchball(invocationcontext ctx) throws Exception { // Do something return invocationcontext.proceed();

15 (Global) Ordering Option 1: public class Goalkeeper public Object catchball(invocationcontext ctx) throws Exception { // Do something return invocationcontext.proceed();

16 (Global) Ordering Option 2: public class public class Defender {...

17 (Global) Ordering Option 2: public class public class Defender {...

18 (Global) Ordering Option 2: public class public class Defender {...

19 (Global) Ordering Option 2: LastHope {

20 (Global) Ordering Option 2: LastHope {

21 (Global) Ordering Option 2: Relative ordering public class Linesman public void observegoal(@observes Goal goal) {... public class Referee public void observegoal(@observes Goal goal) {...

22 (Global) Ordering Option 2: Relative ordering public class Linesman public void observegoal(@observes Goal goal) {... public class Referee public void observegoal(@observes Goal goal) {...

23 (Global) Ordering Option 2: Relative ordering public class Linesman public void observegoal(@observes Goal goal) {... public class Referee public void observegoal(@observes Goal goal) {...

24 (Global) Ordering Option 3: Imperative ordering public class ReorderExtension implements Extension { public void reorder(@observes AfterDeploymentValidation adv) { Collections.sort(adv.getInterceptors(), new InterceptorOrderingComparator()); public interface AfterDeploymentValidation { public List<Class<?>> getinterceptors();...

25 (Global) Ordering Option 3: Imperative ordering public class ReorderExtension implements Extension { public void reorder(@observes AfterDeploymentValidation adv) { Collections.sort(adv.getInterceptors(), new InterceptorOrderingComparator()); public interface AfterDeploymentValidation { public List<Class<?>> getinterceptors();...

26 (Global) Ordering Option 2 & Option 3 Global enablement now possible <beans xmlns=" xmlns:xsi=" <interceptors> <class>com.javaone.checkbadge</class> </interceptors> </beans>

27 Java SE Get a handle public class SoccerHacker { public void fixthematch() { CDI.current().select(new TypeLiteral<Event<Goal>>(){).get().fire(new Goal());

28 Java SE Get a handle public abstract class CDI<T> implements Instance<T> { public static <T> CDI<T> current() {... public abstract BeanManager getbeanmanager();

29 Java SE Boot the container

30 Java SE TODO Boot the container

31 Java SE

32 Java SE Core

33 Java SE TODO Core Java EE integrations

34 Java SE

35 Java SE DSL for bean deployment TODO

36 Java SE DSL for bean deployment TODO Define context lifecycles TODO

37 Extensions & Deployment ProcessModule

38 Extensions & Deployment ProcessInjectionPoint

39 Extensions & Deployment Declarative control of scanning <beans xmlns=" xmlns:xsi=" <scan> <exclude name="com.acme.customer.**"> <if-class-available name="com.acme.customers"> </exclude> </scan> </beans>

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41 @Veto public class Goalkeeper {...

42 Community Sponsored Issues Extensions & Deployment Service interface Users u from User u") public List<User> getallusers(); class UserListManager UserQuery q; List<User> void create() { users = q.getallusers();

43 Community Sponsored Issues Extensions & Deployment TODO Service interface Users u from User u") public List<User> getallusers(); class UserListManager UserQuery q; List<User> void create() { users = q.getallusers();

44 Community Sponsored Issues Extensions & Deployment QueryService { class QueryHandler EntityManager Object handle(invocationcontext ctx) { @interface Query { String value();

45 Community Sponsored Issues Extensions & Deployment TODO QueryService { class QueryHandler EntityManager Object handle(invocationcontext ctx) { @interface Query { String value();

46 Context/Scope improvements Lifecycle events public Object payload, EntityManager em) { public void HttpSession session,...) {

47 Context/Scope improvements Unmanaged instances Instance<Bar> instance = CDI.current().select(Bar.class); Bar bar = instance.get(); bar.dosomething(); instance.destroy(bar);

48 Context/Scope improvements Unmanaged instances TODO Instance<Bar> instance = CDI.current().select(Bar.class); Bar bar = instance.get(); bar.dosomething(); instance.destroy(bar);

49 Context/Scope improvements

50 Context/Scope improvements Conversations extended to servlet

51 Context/Scope improvements Conversations extended to servlet Conversation propagation control

52 Context/Scope improvements Community Sponsored Issues Transaction Scope

53 Context/Scope improvements Community Sponsored Issues Transaction Scope TODO

54 Tracking Declarative public void dosomework() {

55 Tracking JMS integration

56 And more Serialization/Passivation tidy up Injection of Manifest Static & enum injection

57 More sessions at JavaOne CDI Today and Tomorrow - panel session on CDI with David Blevins, Arun Gupta, Sivakumar Thyagarajan and Reza Rahman - 1:30pm on Thursday Imperial Ballroom A

58 Q&A